DEC DIGITAL 5/233i CompactPCI User's Guide

DIGIT AL 5/233i CompactPCI

TM

Single-Board Computer
User Manual

Order Number: EK–SB233–UM. A01

This manual describes the DIGITAL 5/233i single -board computer (SBC);
explains how to configure, maintain, and troubleshoot the SB C; and provides
information on technical details such as address mapping and system interrupts.

Revision/Update Information: This is a new manua l.

Digital Equi pm en t Co rp orat i on
Maynard, Massachusetts

First Printing, May 1998

The infor mation in this document is subject to ch ange without notice and sho uld not be construed as a commitm ent by
Digita l Equipment Corporation.

Digital Equipment Corporation assumes no responsibility for any errors that m ight appear in this document.
Software described in this document is furnished under a license and may be used or copied only in accordance with the

terms of such licens e. No responsibility i s assume for the use or reliability of software or equipment that is not supplied by
Digita l Equipment Corporation or its affiliated companies.

Restricted Rights: Use, duplicat ion, or discl osure by the U.S. Government is subject to restrict ions as set for th in

subparagraph (c) (1) (ii) of the Rights in Technical Data and Computer Software clause at DFARS 252.227–7013.

FCC Notice:

This equi pm ent has been tested and foun d to comply with the limits for a Class A digital device, pursuant to Part 15 of the
FCC Rules. These limits are designed to provide reasonable protec tion against harmful interference when the equipment is
operat ed in a commercial environment. This equipm ent generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instructio n manual, may cause harmful interference to radio communica tions.
Operation of this equipment in a residential area is likely to cause harmful interference , in which case the user will be
requir ed to correct the interference at his own expense.

Warning!

This is a Class A product. In a domestic env ironment this product m ay cause radio interference in which case the user may
be required to take adequate measures.

Achtung!

Dieses i st ein Gerät der F unkstörgrenzwertklasse A. In Wohnbereichen können bei Betrieb dieses Gerät es
Rundfunks törungenauftreten , in welchen Fällen der Benutzer für entspr echende Geg enm aßnahmen verantwortlich ist.

Attention!

Ceci est un p roduit de Clas se A . Dan s un environment domestique, ce produit ri sque de créer des interférences
radioélectriques, il appartiendra alors à l'utilisateur de prendre les mesures spécifiques appropriées.

Canadian EMC Notice:

“This Class [A] digi tal apparatus meets all requirements of the Canadian Interference-Causing E quipment Regu lations.”
“Cet appareil numérique de la class [ A ] respecte t outes les exigences du règle me nt sur le matér iel broil leur du Canada. ”

Note: Shielded data cables mus t be used to interconnect this equipment to comply with t h e FC C limits for a Class A device.

DIGITAL 5/23 3i Com pactPCI Single-Board Computer User M anual

Copyrigh t © Digital Equi pm ent Corporat ion 1998.
All rights reserv e d.
Printed in U.S.A.

DEC, DECchip, DECnet, DECpc, DIGITAL, OpenVMS, ThinWire, VAX, and th e DIGITAL logo are trademarks of
Digita l E quipment Corporation.

Intel and Pentium are registered trademarks and Intel486 an d MMX are trademarks of Intel Co rporation.
PICMG, CompactPCI, and the PICM G and Com pactPCI logos are trademarks of the PCI Industrial Comput ers
Manufacturers’ Gr oup.

All other trademarks and regis tered trademarks are the property of their re spective holders.

Contents

Preface

Purpose of this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ix

Intended Audience. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix

Structure of this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ix

Conventions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x

Special Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii

Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii

For More Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xiv

Latest Product Information and Updates. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv

Specifications and Requirements

1.1 Product Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.2 Physical Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

1.3 Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

1.4 Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

1.5 Regulatory Compliance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

SBC Module Components

2.1 CPU Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2.2 Memory Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

SBC Functional Components

3.1 Functional Component Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

3.2 Intel Pentium Processor with MMX Technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

3.3 Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

3.4 Level 2 Cache . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

3.5 Flash ROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

3.6 Local PCI Bus and Bridges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

3.7 Clocks and Timers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5

3.8 Ethernet Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5

3.9 Ultra SCSI Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

3.10 Video Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7

3.11 Ultra I/O Controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-10

3.11.1 Diskette Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

3.11.2 Parallel Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

3.11.3 Serial Ports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

3.11.4 USB Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

iii

3.11.5 Keyboard/Mouse Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

3.12 LM78 System Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

System Startup

4.1 Powering the System On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4.1.1 System Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4.1.2 BIOS Version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

4.1.3 System Management Measurement and Status Screen Display. . . . . . . . . . . . . . . 4-3

4.2 Considering System Configuration Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

4.3 Powering the System Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

4.4 Restarting the System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Configuring the System

5.1 About WINBIOS Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

5.2 WINBIOS Basics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

5.2.1 Configuration Categories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

5.2.2 Getting Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5

5.2.3 Using the Mouse. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5

5.2.4 Using the Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

5.2.5 Automatic Option Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

5.2.6 Starting WINBIOS Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

5.2.7 Exiting WINBIOS Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7

5.2.8 Using Default WINBIOS Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7

5.3 Setting the Date and Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8

5.4 Configuring System Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8

5.4.1 Setting Up Password Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8

5.4.2 Changing a Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9

5.4.3 Enabling Anti-Virus Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

5.5 Configuring a Display Monitor and Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

5.6 Configuring Keyboard and Mouse Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11

5.6.1 Configuring Systems that Do Not Use a Keyboard . . . . . . . . . . . . . . . . . . . . . . . . 5-11

5.6.2 Disabling and Enabling Support for a PS/2 Mouse . . . . . . . . . . . . . . . . . . . . . . . . 5-11

5.7 Configuring Hard Disk and CD–ROM Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11

5.7.1 Disk Configuration Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12

5.7.2 Enabling and Disabling the Onboard IDE Controller Channels. . . . . . . . . . . . . . . 5-12

5.7.3 Configuring MFM Hard Disk Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13

5.7.4 Configuring User-Defined Hard Disk Drives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13

5.7.5 Configuring IDE Hard Disk Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14

5.7.6 Configuring CD–ROM Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15

5.7.7 Specifying Hard Disk Drive Access Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16

5.7.8 Enabling and Disabling Hard Disk Drive S.M.A.R.T. Options . . . . . . . . . . . . . . . 5-17

5.8 Configuring the Diskette Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17

5.8.1 Disabling and Enabling the Onboard Diskette Controller . . . . . . . . . . . . . . . . . . . 5-17

5.8.2 Configuring the Diskette Drive Capacity and Size. . . . . . . . . . . . . . . . . . . . . . . . . 5-17

5.8.3 Specifying Diskette Drive Access Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-18

5.8.4 Swapping Diskette Drives A: and B: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-18

5.8.5 Configuring Diskette Drive A: to Seek During a System Boot . . . . . . . . . . . . . . . 5-18

5.8.6 Emulating an ARMD as a Diskette or Hard Disk Drive . . . . . . . . . . . . . . . . . . . . 5-19

5.9 Configuring the Onboard SCSI Controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19

5.10 Configuring the Onboard Ethernet Con troller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20

5.11 Configur ing Onboard Serial Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20

5.12 Configuring the Onboard Parallel Ports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20

iv

5.13 Configuring USB Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-22

5.13.1 Enabling and Disabling USB Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-22

5.13.2 Enabling an d Dis abling USB Support for Legacy Keyboards and Mice . . . . . . . 5-22

5.13.3 Enabling and Disabling Passive Release for the USB. . . . . . . . . . . . . . . . . . . . . . 5-22

5.14 Configuring Memory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-23

5.14.1 DRAM Speed Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-23

5.14.2 Specifying Caching Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-23

5.14.3 Setting the DRAM Data Integrity Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-24

5.14.4 Shadowing the BIOS to System Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-24

5.14.5 Controlling the Location of the Contents of ROM . . . . . . . . . . . . . . . . . . . . . . . . 5-25

5.15 Configuring Boot Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-25

5.15.1 Enabling and Disabling Quick Boots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-26

5.15.2 Specifying the Boot Device Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-26

5.15.3 Disabling and Enabling the Use of Numeric Keypad Arrow Keys. . . . . . . . . . . . 5-27

5.15.4 Enabling or Disabling OS/2 Compatible Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . 5-27

5.15.5 Disabling and Enabling “Hit <DEL> ” a nd “Wait for <F1>” Boot Messages. . . . 5-28

5.16 Configuring Display Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-28

5.17 Configuring PCI Plug and Play Capabilities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-28

5.17.1 Enabling and Disabling PCI Plug and Play Features . . . . . . . . . . . . . . . . . . . . . . 5-29

5.17.2 Setting the PCI Latency Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-29

5.17.3 Declaring the PCI IDE Bus Master . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-29

5.17.4 Allocating IRQ Lines for PCI Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-30

5.17.5 Configuring Legacy ISA/EISA Adapter Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-30

5.18 Configuring LM78 System Management Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-31

5.18.1 Configuring Voltage Monitoring Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-31

5.18.2 Configuring Intrusion Alert Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-32

5.18.3 Configuring Temperature Monitoring Support . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-32

5.19 Updating the BIOS Flash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-33

Upgrading and Replacing SBC Components

6.1 What You Need. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1

6.2 Taking Precautions During System Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

6.2.1 Taking Power Supply Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

6.2.2 Taking Antistatic Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

6.3 Removing and Installing the SBC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

6.3.1 Removing the SBC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

6.3.2 Installing the SBC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4

6.4 Adjusting Jumpers for Front Access I/O. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4

6.5 Upgrading and Replacing Memory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

6.5.1 Memory Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6

6.5.2 Installing SIMMs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7

6.5.3 Removing SIMMS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8

6.6 Replacing the Lithium Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9

Connectors and Headers

7.1 Connectors and Headers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

7.2 J4 CompactPCI I/O Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

7.3 J5 CompactPCI I/O Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5

7.4 Parallel Port Connector and Header . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9

7.5 PS/2 Keyboard/Mouse Connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-11

7.6 Serial Port Connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-12

7.7 Universal Serial Bus Port Connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-13

v

7.8 Ethernet Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-15

7.9 SCSI Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-16

7.10 Video Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-19

7.11 SIMM Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-20

System Address Mapping and Interrupts

8.1 PCI I/O Address Map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

8.2 Memory Address Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2

8.3 DMA Channel Assignments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3

8.4 System Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3

System Manage ment

9.1 System Management Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

9.2 Gaining Access to the System Management Features . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

9.3 FPGA Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

9.3.1 Watchdog Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

9.3.2 Watchdog Strobe Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3

9.3.3 FPGA Index Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4

9.3.4 FPGA Data Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5

9.4 Using the Watchdog T im er . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5

9.4.1 Enabling the Watchdog Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5

9.4.2 Resetting the Watchdog Timer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5

9.4.3 Setting the Watchdog Timer Mode and Delay. . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-6

9.4.4 Resetting the Watchdog Timer Delay. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-6

9.4.5 Checking the Status of the Watchdog Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-6

9.4.6 Using the Watchdog Interrupt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-6

9.5 Using the LM78 System Monitor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-7

Troubleshooting

10.1 Basic Troubleshooting Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1

10.2 Troubleshooting Your System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2

10.3 Responding to Blink Codes and Error Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-7

10.3.1 Responding to Blink Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-8

10.3.2 Responding to Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-8

BIOS Option Summary

Error Messages and Checkpoint Codes

B.1 BIOS Blink Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

B.2 BIOS Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2

B.3 EISA BIOS Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4

B.4 ISA NMI Handler Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-5

B.5 EISA BIOS NMI Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-5

B.6 POST Checkpoint Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-5

B.6.1 Uncompressed Initialization Checkpoint Codes . . . . . . . . . . . . . . . . . . . . . . . . . . B-6

B.6.2 Runtime Checkpoint Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-6

B.6.3 Bus Checkpoint Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-11

vi

Figures

2–1 SBC Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2–2
3–1
3–2
4–1
4–2
4–3
4–4
4–5
5–1
6–1
6–2
6–3
6–4
6–5
6–6
6–7
7–1
7–2
7–3
7–4
7–5
7–6
7–7
7–8
7–9
7–10
9–1
9–2
9–3
9–4
9–5
9–6

Pair of Memory Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Functional Components of the SBC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

SCSI Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Powering the System On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

System Startup Screen Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

System Configuration Screen Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

BIOS Version Screen Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

System Management Measurement and Status Screen Display . . . . . . . . . . . 4-3

WINBIOS Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

Removing the SBC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

Installing the SBC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4

Setting Front/Rear I/O Access Jumpers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

Pair of Memory Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6

Installing a SIMM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8

Removing a SIMM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9

Installing the System Battery Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11

J4 Connector Pin Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

J5 Connector Pin Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6

Parallel Port Conn ector Pin Layout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9

PS/2 Keyboard/Mou se Connector Pin Layout. . . . . . . . . . . . . . . . . . . . . . . . . 7-11

Serial Port Connector Pin Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-12

USB Port Connector Pin Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-14

Ethernet Connect or Pin Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-15

SCSI Connector Pin Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-17

Video Connector Pin Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-19

SIMM Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-20

Watchdog Registe r . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

Watchdog Strobe Register – Write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3

Watchdog Strobe Register – Read. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4

FPGA Index Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4

FPGA Data Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5

LM78 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-7

Tables

1–1 DIGITAL 5/233i CompactPCI SBC Specificat ions . . . . . . . . . . . . . . . . . . . . 1-1

1–2
1–3
2–1
3–1
3–2
3–3
3–4
5–1
5–2
5–3
6–1
7–1
7–2
7–3
7–4
7–5
7–6

Input Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Valid SIMM Combinations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

PCI Interrupt Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Clocks and Timers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Standard Video Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Extended Video Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

WINBIOS Setup Configuration Categories . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

Hard Disk Drive Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12

Typical Hard Disk Drive Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12

Valid SIMM Combinations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7

J4 Connector Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

J4 Connector Signal Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

J5 Connector Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6

J5 Connector Signal Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7

Parallel Port Connector Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-10

Parallel Port Connector Signal Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-10

vii

7–7 PS/2 Keyboard/Mou se Combination Connector P in Assignments. . . . . . . . . 7-11

7–8
7–9
7–10
7–11
7–12
7–13
7–14
7–15
7–16
7–17
7–18
8–1
8–2
8–3
8–4
9–1
9–2
9–3
9–4
9–5
10–1
10–2
10–3
A–1
A–2
A–3
A–4
B–1
B–2
B–3
B–4
B–5
B–6
B–7
B–8
B–9

PS/2 Keyboard/Mou se Connector Signal Definitions . . . . . . . . . . . . . . . . . . 7-11

Serial Port Connector Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-12

Serial Port Connector Signal Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-13

USB Port Connector Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-14

USB Port Connector Signal Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-15

Ethernet Connect or Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-15

Ethernet Connect or Signal Definitio ns. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-16

SCSI Connector Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-17

SCSI Connector Signal Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-18

Video Connector Pin Assignments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-19

Video Connector Signal Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-20

PCI I/O Address Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

Memory Address Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2

DMA Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3

System Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3

System Management Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

PCS Port Offsets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

Watchdog Registe r Fi elds. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3

FPGA Function Index Values. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4

Enabling the Watchdog Interrupt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-6

Troublesho oting System Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-3

BIOS Error Reporting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-8

Troublesho oting Based on Blink Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-8

Setup Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

Security Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8

Utility Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-9

Default Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-9

BIOS Blink Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2

EISA BIOS Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4

ISA NMI Handler Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-5

EISA BIOS NMI Error Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-5

Uncompressed Initialization Checkpoint Codes. . . . . . . . . . . . . . . . . . . . . . . B-6

Runtime Checkpoint Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-6

Bus Checkpoint Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-11

Additional Bus Checkpoint Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-12

viii

Purpose of this Manual

This manual describes the DIGITAL 5/233i single-board computer (SBC);
explains how to configure, maintain, and troubleshoot the SBC; and provides
information on techni cal det ails such as address mapping and system interrupt s.

Intended Audienc e

This manual is for OEM system integrators who are designing and building a
DIGITAL 5/233i single-board computer (SBC) into specific applica tion systems.
These systems may range in scope from a single DIGITAL 5/233i SBC to highly
complex multiproc essor syst ems tha t inc lude a va riet y of hard ware. Har dware and
mechanical engine ers r efer to th e p hysical a nd envir onmenta l specif icat ions. F ield
and manufacturing technic ians and support specialists use information in this
manual to configure syste ms and diagnos e problems.

This manual assumes readers have prerequisite knowledge and experience with
the following:

Preface

• System design

• CompactPCI design and specifications

Structure of this Manual

This manual consists of nine chapte rs, two appe ndixes, and an index orga nize d as
follows:

• Chapter 1, Specifications and Requirements, provides product specifications;

physical, power, and environmental requi rements; and FCC regulations.

• Chapter 2, Module Components, introduces the physical components of the

SBC.

• Chapter 3, Functional Components, describes the SBC’s functional compo-

nents.

• Chapter 4, System Startup, discusses powering the system on and off.

• Chapter 5, Configuring the System, explains how to use the American Mega-

trends’ WINBIOS Setup utility.

ix

Conventions

Bit Notation

• Chapter 6, Upgrading and Replacin g SBC Components, explains how to

remove the SBC from a system, upgrade or replace main memory, and adjust
jumper settings.

• Chapter 7, Connectors and Headers, describes the DIGITAL 5/233i SBC and

rear transition module connectors and headers.

• Chapter 8, System Address Mapping and Interrupts, discusses system address

mapping and system interrupts.

• Chapter 9, System Management, describ es and explains how to use watchdog

timer and system monitoring features.

• Chapter 10, Troubleshootin g System Proble ms, provides som e guida nce with

troubleshooting SBC problems.

• Appendix A, BIOS Option Summary, summarizes the BIOS menu option s.

• Appendix B, Error Messages and Checkpoint Codes, lists error messages,

blink codes, and checkpoint cod es generated by the DIGITAL 5/233i SBC.

This section defines terminology, abbreviations, and other conventions used in
this manual.

Multiple-bit fields can include contiguous and noncontiguous bits contained in
angle brackets (< >). Multiple contiguous bits are indicated by a pair of numbers
separated by a colon ( : ). For example, <9:7,5,2: 0> specifies bits 9, 8, 7, 5, 2, 1,
and 0. Similarly, single bits are frequently indicated with angle brac kets. For
example, <27> specifies bit 27.

Keyboard Keys

The following keyboard key conventions are used throughout this manual.

Convention Example

Control and Alt key sequences are represented as Ctrl/
Press Ctrl or Alt while you simu ltaneously press th e

In plain text, key name s match the name on the actual key . Return key
In tables, key names match the name of the actual key and appear in

square brackets ([ ]).

Examples

Prompts, input, and output in examp le s are shown in a monospaced font. Interac­tive input is dif ferentiated from prompts and system output with bold type. For
example:

>>> echo This is a test.[Return]
This i s a test .

x

x

.

key.

Ctrl/C

[Return]

Ellipsis points ind icate that a portion of an example is omitted.

x

Names and Symbols

The following table lists typographical conventions used for names of various
items throughout this manua l.

Items Example

Bits sysBus<32:2>
BIOS option External Cache option
BIOS option values
Files and pathnames /usr/foo/bar
Pins LIRQ pin
Signals iogrant
Variables n, x, mydev

Numbering

Numbers are decimal unless otherwise indicated. The prefix h indicates a hexa­decimal number. For example, 19 is decimal, but h19 and h19A are hexadeci mal.
Otherwise, the base is indicate d by a superscript; for example, 100
number.

Ranges and Extents

Ranges are specified by a pair of numbers separated by two periods ( .. ) and are
inclusive. For example, a range of integers 0..4 includes the integers 0, 1, 2, 3,
and 4.

Extents are sp ecifi ed by a pai r of nu mbers in angle brackets (< >) separated by a
colon ( : ) and are inclusive.

Bit fields are often specified as extents. For example, bits <7:3> specifies bits 7,
6, 5, 4, and 3.

Enabled

signal

2

is a binary

Register and Memory Fi gures

Register figures have bit and field position numbering starting at the right (low­order) and increasing to the left ( high-order).

Memory figures have addresses starting at the top and increasing toward the bot­tom.

xi

Syntax

The following syntax elements are used throughout this manual. Do not type the
syntax elements when entering information.

Element Example Description

[ ] [
| - | + | = Choose one of two or more items. Sele ct

{ } {- | + | =} You must specify one (and only one) of the

( ) (a,b ,c) You mus t sp ec if y th e enclosed it ems

... arg... You can repeat the prece ding item one or

UNPREDICTABLE and UNDEFINED

This manual uses the terms UNPREDICTABLE and UNDEFINED. Their mean­ings are different and must be carefully distinguished.

UNPREDICTABLE results or occurrences do not disrupt the basic operation of
the processor. The processor continues to execute instructions in its normal man­ner . In contrast , UNDEFINED operations can halt the processor or cause it to lose
information.

Special Notices

-file filename] The enclosed items are optional.

one of the items unless the items are
optional.

enclosed items.

together.

more times.

Warning

Caution

Note

This section lists special notices that are used in this manual.

A warning indicates the presence of a hazard that can cause personal injury if the
hazard is not avoided.

A caution i ndicates the presence of a hazard that might cause damage to hardware
or might corrupt software.

A note emphasizes important inf or mation.

xii

Abbreviations

The following abbreviat ions a re used in this manual:

Abbreviation Meaning

BIOS Basic inpu t/output syst em
CD-ROM Compact-disc read only memory
CPU Central processing unit
DMA Direct memory access
DRAM Dynamic random access memory
EDO Extended data out
EIDE Enhanced integrated drive electronics
ESD Electrostatic discharge
FPM Fast page mode
HDD Hard disk drive
HP Horizontal pitch
IDE Integrated dri v e el ectronics
I/O Input/output
IRQ Interrupt request
ISA Industry standard architecture
MMX Multimedia Ex tension

MS–DOS Microsoft Disk Operating System
OEM Original equipment manufacturer
PCI Peripheral components interface
PICMG PCI Industrial Computers Manufacturers Group
POST Power-on self test
PSU Power supply unit
ROM Read only memory
RTC Real-time clock
RTM Rear transition module
SBC Single-board computer
SCSI Small computer system interconnect
SIMM Single in-line memory modules
SVGA Super video graphics array
TOY Time of year
TSR Terminate stay resident

xiii

Abbreviation Meaning

USB Universal serial bus
Windows NT Microsoft Windows NT environment
ZIF Zero insertion force

For More Information

For more information, refer to the following:

• Your supplier

• The DIGITAL OEM web site at http://www.digital.com/oem

• The following documentat ion:

– DI GITAL 5/233i-8 CompactPCI Syste m Warranty and Parts I nformation,

EK–SY233–WI

– DIGITAL 5/233i-8 CompactPCI System online help, http://www.digi-

tal.com/oem

– PCI Local Bus Specification, Revision 2.1
– C ompactPCI Specification, Revision 2.0
– PC I to PCI Bridge Architecture Specification, Revision 1.0

Latest Product Information and Updates

You can access product infor matio n and down load the lat est BIOS, device d rivers,
and software updates over the Inter net from:

http://www.digital.com/oem

xiv

Specifications and Requirements

This chapter discusses specifications and requirements for the DIGITAL 5/233i
CompactPCI single-boa rd computer (SBC). Spec ifical ly, Sections 1.1 through 1.4
discuss:

• Product Specifications

• Physical Requirements

• Power Requirements

• Environmental Specifications

Section 1.5 discusses the pro duct’s regulatory compliance.

1.1 Product Specifications

T able 1–1 lists the DIGITAL 5/233i CompactPCI SBC specifications.

Table 1–1 DIGITAL 5/233i CompactPCI SBC Specifications

1

CPU Pentium with MMX technology at
Bus interface PCI bus (220-pin) fast/ful ly buffered (33 MHz)

2 mm pin-and-socket connector (IEC 1076-4-101)

Cache 32 KB CPU cache

512 KB Level 2 write-back cache
8 ns synchronous pipelined burst with extended
capability

Memory Two banks of two 72-pin SIMM

Up to 256 MB of 60 ns EDO memory

Parity or ECC via Intel 82430HX chipset
Addressing Real (36-bit) and protected (32-bit on bus access)
Data paths 64-bit on CPU bus

32-bit on PCI bus
Interrupts 11 edge-sensitive and

Four PCI level sensitive configurable to any inter-

rupt vector plug and pla y com patibility

ISA on-card interrupts are plug and play compliant
DMA channels Four 8-bit

Three 16-bit

Support scatter-gather, F type DMA

configurable

233 MHz

sockets

Specifications and Requirements 1–1

Table 1–1 DIGITAL 5/233i CompactPCI SBC Specifications (Continued)

I/O Two Universal Serial Bus (USB) ports

Two RS 232 (16550) serial ports with 16-byte FIFO
Bidirectiona l parallel port that supports all

IEEE

1284 protocols

Industry-standard diskette interface
Bus master PCI EIDE with LBA and mode 4 sup­port
PCI Ultra Fast/Wide SCSI-3 (Adaptec 7880)
Shielded twist ed-pair (STP) PCI 10/100 Mb Ether­net, 10BASE-T, 100 BASE-TX
(82557ETherExpress(TM) Pro/100B compatible)
PCI SVGA with 1 MB of EDO memory (Cirrus
Logic GD5446)

Clock/calendar Real-time clock with replaceable battery backup

Includes CMOS

SBC connectors Two USB ports

PS/2 keyboard/mouse combination (6-pin mini ­DIN)
Two serial ports (dual stac ked 9-pin micro-D)
Parallel port (25-pin micro-D)
SCSI-3 (68-pin receptacle)
SVGA (15-pin D-sub)
Ethernet (RJ-45)

BIOS features AMI WIN BIOS in flash EPROM

Field upgradable
Auto configuration/extended setup
Serial and parallel ports can be remapped
Extensions for systems that run without a disk, key­board, or video monitor
BIOS POST and Setup console can be red irected to

a serial port

Programmable memory wait states
System and video BIOS shadowing

Supervisory Software programmable, 2-level watchdog timer

(17.8 ms to 291 sec.) tha t drives interrupt 11 (config­urable), NMI, or system reset
Monitor micro control le r for b ac kplane volta ge , SBC
temp erat u r e (user defin ab l e al ar m o n IR Q 11)
Guarded reset switch on front panel
Front panel LEDs: power OK (green), speaker out­put (amber), alarm (red), link (green), activity
(amber), disk activity (green )

Mechanical 6U x 8HP wide (233 mm x 160 mm x

Conforms to PICMG CompactPCI 2.0 and PCI SIG

specifications

2.1

Power input ~40 W (without cache or DRAM)

41 mm)

1–2 Spe cifications and Requirements

Table 1–1 DIGITAL 5/233i CompactPCI SBC Specifications (Continued)

Power requirements +5 V 5.5 A (dual DC/DC for split voltage Pentium)

Reliability M TBF: 1,000,000 hours @ 25 degrees C (MIL-

Regulatory conformance FCC Class A

1.2 Physical Requirements

The DIGITAL 5/233i CompactPCI SBC has the industry-standard 6U form factor
and requires a single backplane slot and dual-width (8 HP) front panel space in a
CompactPCI chassis.

1.3 Power Requirements

The DIGITAL 5/233i CompactPCI SBC requires power voltages of +3.3V, +5 V,
and +12 V. The CompactPCI backplane provides the power to the logic of the
SBC through the P1 and P2 CompactPCI connectors.

T able 1–2 provides the power ratings for the var ious voltage supplies supported
by the DIGITAL 5/233i CompactPCI SBC.

+12 V 0.1 A

+3.3 V 1.6 A

HDBK_217F)

CE Mark

Table 1–2 Inp ut Power Requirements

Voltage Supply Maximum Memory Minimum Memory

+3.3 V 1.5 A 1.6 A
+5 V 5.5 A 5.0 A
+12 V 0.100 A 0.100 A

1.4 Environmental Specifications

Table 1–3 shows the environmental specifications for the DIGITAL 5/233i Com­pactPCI SB C.

Table 1–3 Environmental Specifications

Condition Range or Value
Operating

Temperature range 0 C to 50 C (32 F to 122 F)
Relative humidity 10% to 95% noncondensing
Altitude 10,000 feet with derating
Maximum wet bulb 28 C (82 F)
Minimum dew point 2 C (36 F)

°°° °

°°

°°

Vi bration 5-16 Hz 0.020 in. (0.5mm) DA

16-200 Hz 0.25G peak (2.5 m/sec.)

200-500 Hz 0.1G peak (1.0 m/sec.)

Specifications and Requirements 1–3

Table 1–3 Environmental Specifications (Continued)

Condition Range or Value

Shock 10 G 30 ms
Meantime between failures > 100,000 hours @ 55 C (MIL-HDBK_217F)

Nonoperating

Temperature ra n g e –40 C to 66 C (–40 F to 151 F)
Storage (shipping) 40,000 feet
Relative humidity 0 to 95% noncondensing
Maximum wet bulb 32 C (90 F)
Vibration 1.5 G

°°° °

°°

Notes

°

Real failures fo r MBTF figures are de fined as ra ndom componen t failures
that are not caused by customer errors, workmanship related failures,
third-party comp onent issues, or design related proble ms where corrective
action has been implemented.

The operating temperatur e range is 0 C to 50 C. This is dependent on

°°

sufficie nt enclosure air flow to keep the CPU case temperature at or
below 70

°

C.

1.5 Regulat or y C omp lia nce

The DIGITAL 5/233i CompactPCI SBC has been tested and shown to operate
within a suitable enclosur e with the following regulatory complian ces for a Class
A device:

• EMC

• CE

• VCCI limits

These limits are designed to provide reasonable protection against harmful inter­ference when the equipment is operated in a commercial environ ment. This equip­ment generates, uses, and can radiate radio frequency energy and, if not installed
and used as instructed in the DIGITAL 5/233i- CompactPCI SBC Installation
Guide, may cause harmful int erfe ren c e to rad io communications. Operation of a
DIGITAL 5/233i CompactPCI SBC in a residential area is likely to cause harmful
interference , in whic h case the in terference is required to be corrected at the user’ s

own risk.
When used in an appropriate enclosure, a DIGITAL 5/233i CompactPCI SBC can

operate at the level of a Class A device. If used as a Class A device, your applica­tion may requi re sh ie lde d cabl es fo r al l I/O int erfa ces .

1–4 Spe cifications and Requirements

Note

It is incumbent upon Original Equipment Manufacturers (OEM s) to
obtain regulatory FCC appro val for a consolidated system.

Specifications and Requirements 1–5

The DIGITAL 5/233i single-board computer (SBC) consists of a single CPU
module and support modules that provide memory . This chapter describes the
SBC module components. The chapter describes the following:

• CPU Module

• Memory Modules

2.1 CPU Module

Figure 2–1 shows the layout and identifies connectors, headers, and jumpers on
the SBC.

Figure 2–1 S BC Layout

2

SBC Module Components

1234 6 7 8 9

21

20

19
18

17

5

FRONT

1110 12 13

14

15

16

TOP

ML014351

The numeric callouts in the figure identify the following key components:

1 PS/2 keyboard and mouse connector — 6-pin PS/2 female
2 USB connectors — dual 4-pin USB
3 Status LEDs (top-to-bottom – power, hard disk drive, speaker, alar m)
4 SVGA connector — 15-pin D-SUB

SBC Module Components 2–1

5 CPU reset button
6 SCSI connector — 68-pin high density
7 Bidirectional, EPP/ECP parallel port — 25-pin micro-D
8 Serial ports 1 and 2 (16550) — 9-pin micro-D

9 Ethernet connector — RJ45
10 J5 Com pact PCI connect or
11 J4 CompactPCI connector
12 J2 Com pactPCI I/O conne ct o r
13 J1 Com pactPCI I/O conne ct o r
14 Rese rved
15 Ethernet jumper for front or rear I/O selection
16 Reserved
17 USB jumper for front or rear I/O selection
18 SIMM connectors for memory bank 0
19 SIMM connectors for memory bank 1
20 Lithium battery
21 Pentium P55C MMX CPU

2.2 Memory Mo d ule s

The DIGITAL 5/233i SBC is shipped with at least 32 MB of dynamic random
access memory (DRAM) and supports memory configur ations that range from 32
to 256 MB of DRAM. This memory is accessible from the CPU and PCI bus.

You can plug either two or four 36-bit 16, 32, or 64 MB SIMMs into the memory
connectors on the SBC. SIMMs must be 36 bits wide.

Figure 2–2 shows a typical pair of memory modules.

Figure 2–2 Pair of Memory Modules

When installing memory, you must adhere to the following requirements:

• SIMMs must be installed in pairs. That is, you must populate the memory

banks with one of the following combinations:

– Two slots: slot 0 (J6) of bank 0 and slot 1 (J7) of bank 0

ML014381

– Two slots: slot 0 (J8) of bank 1 and slot 1 (J9) of bank 1
– F our slots: slots 0 and 1 of banks 0 and 1

2–2 SBC Module Components

• SIMMs installed in a given memory bank must be of the same size. For

example, if you install a 64 MB SIMM in slot 0 of bank 0 you must install a
64 MB SIMM in slot 1 of bank 0.

• All SIMMs must be 60 ns extended data out (EDO) SIMMs.

T able 2–1 shows valid SIMM combinations.

Table 2–1 Valid SIMM Combinations

Total Mem ory

32 MB 16 MB 16 MB
64 MB 16 MB 16 MB 16 MB 16 MB
64 MB 32 MB 32 MB
96 MB 16 MB 16 MB 32 MB 32 MB
96 MB 32 MB 32 MB 16 MB 16 MB
128 MB 32 MB 32 MB 32 MB 32 MB
128 MB 64 MB 64 MB
160 MB 16 MB 16 MB 64 MB 64 MB
160 MB 64 MB 64 MB 16 MB 16 MB
192 MB 32 MB 32 MB 64 MB 64 MB
192 MB 64 MB 64 MB 32 MB 32 MB
256 MB 64 MB 64 MB 64 MB 64 MB

Bank 0
Slot 0 (J6)

Bank 0
Slot 1 (J7)

Bank 1
Slot 0 (J8)

Bank 1
Slot 1 (J9)

SBC Module Components 2–3

3

SBC Functional Components

This chapter describes the functional components associated with the DIGITAL
5/233i CompactPCI single-board computer (SBC). Topics include:

• Functional Component Overview

• Intel Pentium Processor with MMX Te chnology

• Memory

• Level 2 Cache

• Flash ROM

• Local PCI Bus and Bridges

• Clocks and Timers

• Ethernet Controller

• Ultra SCSI Controller

• Video Controller

• Ultra I/O Controller

• LM78 System Monitor

3.1 Functional Component Overview

Figure 3–1 ide ntifies the functional components of the DIGITAL 5/233i Compact­PCI single-board c omputer (SBC). The SBC is base d on the 32-bit Penti um P55C
MMX processor and runs at 233 MHz. Either two or four main memory SIMMs
provide from 32 to 256 MB of EDO memory. In addition, the SBC provides 512
KB of Level 2 (L2) pipelined burst cache.

The SBC uses a hi gh-performance 32-bit PCI bus as its loca l system bus. The pro­cessor and memory subsystem connects to the PCI bus through a PCI bus host
bridge. This bridge provides a low latency path through which the processor
directly acc esses PCI devices map ped anywhere in memor y or I/O a ddress spa ces.
The bridge a lso pro vides a high- bandwidth path that a ll ows PCI bus mas ters dir ect
access to main memory.

The processor and memory subsystem interfaces with integrated peripheral con­trollers a nd add-on option modules through the PCI host bridge and over the local
PCI bus. As Figure 3–1 shows, onboard integra te d peripheral controllers include :

• 10/100 Fast Ethernet controller

• Ultra Wide SCSI controller

• SVGA Video controller

SBC Functional Component s 3–1

A PCI-to-ISA bus bridge provides access to:

• IDE device control

• Universal serial bus (USB) control

• 128 KB of flash ROM

• LM78 system monitor

• Ultra I/O controller, which supports serial ports, a parallel port, and the dis-

kette drive

A third bridge, the PCI-to-PCI bridge, provide s PCI access to the J1 connector on
the CompactPCI backplane.

Figure 3–1 Funct i onal Compon e n ts of the S B C

Serial ports (2)
Parallel port
Diskette drive

PCI-to-PCI

Bridge

Digital Equipment

21150

PCI Bus

J1

Connector

Ethernet SCSI Video EIDE

10/100

Ethernet

Controller

Intel 82557

UltraSCSI
Controller

Adaptec

AIC 7880

PCI Bus

Video

Controller

Cirrus Logic
CL-GD5446

PCI-to-ISA

Bridge

PIIX3

Intel 82371

J4

Connector

128 KB

Flash

PCI Host

Bridge TXC

Intel

82439HX

Intel P55C

MMX

Processor

EIDE
SCSI
Video
Ethernet

LM78
System
Monitor

ISA Bus

Main Memory

(2 or 4)

16 to 64 MB

SIMMS

512 KB
Bcache

J5

Connector

Ultra I/O

Controller

SMC

FDC37C932

Serial ports (2)
Parallel port
Keyboard / Mouse
USB (2)
EIDE
Diskette

ML014487

3.2 Intel Pentium Processor with MMX Technology

The SBC is based on the 32-bit Intel Pentium processor with MMX technology at
233 MHz. This is a super scalar pipe li ned processo r manufac ture d using e nhanced
Intel CMOS silicon technolog y.

In addition to supporting sta nda rd features of the Pentium processor family, such
as a 64-bit data bus, the Pentium processor with MMX technology features:

• MMX technology for supporting highly parallel, repetitive sequences found

in multimedia and communication applications

3–2 SBC Functional Components

3.3 Memory

• 32 KB of onchip cache — 16 KB of code cache and 16 KB of write-back data

cache — that uses the MESI cache protocol

• Improved branch prediction

• Enhanced pipelines and pipelined integer, MMX, and floating-point units

• Deeper write buffers

• V irtual mode extensions

For more information, see the proce ssor data sheet and documentation available
on the Intel web site at http://www.intel.com/design/MMX/ and
http:/ /www.intel.com/design/pcisets/.

The SBC supports two or four dynamic ra ndom access memory (DRAM) SIMMs
for memory confi gurations that range from 32 to 256 MB. The memory resides in
two banks. The SIMMs in a given bank must be th e same size (16, 32, or 64 MB)
and all must be 60 ns extended data out (EDO) SIMMs. Table 2–1 lists valid

SIMM combinations. The amount of main memory installed is detected by the
BIOS automatically when the SBC is powered on.

The width of the memory data pa th is 64 bits. Operating at this width , the memory
bus can achi eve a maximum burst bandwidth of 264 MB/sec (8 bytes at 33 MHz).

Parity generati on and c hecki ng is pr ovided for each by te of memory. Additionally ,
the chip set provides single-bit error checking and correction (ECC) and double
bit detection with pa rity error generation for 36-bit SIMMs. ECC, if supporte d by
the operating system, grea tly enhances reliability and data integrity.

3.4 Level 2 Cache

The SBC provides 512 KB of onboard secondary Level 2 write-back cache. This
cache consists of two 32-bit x64 KB 7 ns onboard pipelined burst SRAMs. Fea­tures of the Level 2 cache include tag and control logic that is contained in the
82434NX PCMC core.

3.5 Flash ROM

The onboard BIOS is s tored in a 256 KB (2 Mb) flash ROM. The flash ROM has
a boot bloc k and can be reprogrammed at power up from a diskette . The SBC has
a catastrophic flash recovery process.

3.6 Local PCI Bus and Bridges

The local PCI bus serves as the base of the I/O subsystem, connecting all of the
system’s PCI devices. The PCI bus is an industry standard, high-performance 32­bit bus with multiplexed address and data lines. The bus can operate at up to 33
MHz and has a peak bandwidth of 132 MB.

SBC Functional Component s 3–3

The local PCI bus interconnects the processor/memory subsystem with compo­nents of the I/O subsystem, which includes integrated peripheral controllers and
peripheral expansion modules. The I/O subsystem consists of the following PCI
devices:

Device

PCI host bridge, TXC Intel, 82439HX Connects the processor and mem-

PCI-to-ISA bridge,
PIIX3

Vi deo controller Cirrus Logic,

Ultra SCSI controller Ada ptec, AIC 7880 SCSI controller.
Ethernet controller Intel, 82558 Ethernet controller.
PCI-to-PCI bridge DIGITAL, 21150 Connects the CompactPCI J1 con-

Manufacturer/Part
Number

Intel, 82371 Provides integrated USB and IDE

CLGD5446

Description

ory subsystems t o the PCI bus and
each other.

control while connecting the ISA

bus components — Flash memory ,
LM78 system monitor, and Ultra
I/O — to the PCI bus.

Vi deo controller.

nector to the PCI bus.

Extensive buffering and buffer management within bridges ensures maximum
efficiency in all thr ee bus e nvironments: the host CPU bus, PCI bus, and ISA bus.

The PCI host bridge provides a low latency path through which the processor
directly accesse s PCI devices mapped in memory or I/O address spaces. This
bridge also provides a high-ba ndwidth path that gives PCI bus masters direct
access to main memory.

Auto-configuration support for PCI expansion boards and components simpli fies
system upgrades and expansi on.

T able 3–1 shows the PCI interrupt routing.

Table 3–1 PCI Interrupt Routing

Component Bus # IDSel Device # Req/Grant INTA INTB INTC INTD

Host bridge 0 — 00h N/A —
PCI-to-ISA bridge 0 AD18 07h PHOLD —
Ethernet controller 0 AD31 14h 0 PIRQB
Vi deo controller 0 AD30 13h — PIRQC
PCI-to-PCI bridge 0 AD29 12h 1 —
SCSI controller 0 AD28 11h 2 PIRQD

Slot 1 1 AD31 0Fh 1–0 PIRQD PRIQA PIRQB PIR QC
Slot 2 1 AD30 0Eh 1–1 PIRQC PIRQD PIRQA PIRQB

3–4 SBC Functional Components

Table 3–1 PC I Interrupt Routing (Contin ued)

Component Bus # IDSel Device # Req/Grant INTA INTB INTC INTD

Slot 3 1 AD29 0Dh 1–2 PIR QB PIRQC PIRQD PIRQA
Slot 4 1 AD28 0Ch 1–3 PIRQA PIRQB PIRQC PIRQD
Slot 5 1 AD27 0Bh 1–4 PIRQD PIRQA PIRQB PIRQC
Slot 6 1 AD26 0Ah 1–5 PIRQC PIRQD PIR QA PIRQB
Slot 7 1 AD25 09h 1–6 PIRQB PIRQC PIRQD PIRQA

3.7 Clocks and Timers

The DIGITAL 5/233i CompactPCI SBC includes:

Table 3–2 Clocks and Timers

Clock or Timer Description

Time-of-year (TOY)
clock

Watchdog timer Programmable timer that supports four modes and count-

3.8 Ethern et Con tro lle r

The 10/100 Fast Ethernet controller (Intel, 82558) provides system networking
capabilitie s. The controller behaves:

• As a bus slave when communicating with the PCI bus to gain access to con-

figuration and contr ol/status registers

• As a bus master when communicating with memory

The Ethernet controll er han dles the following types of cycle terminatio n:

• Target -initiated retry

• Abort

• Device select abort

Target-aborted terminations cause an interrupt.

Standard TOY clock with battery backup. The TOY cloc k is
integrate d into the SMC Ultra I/O controller.

down timeout values that range from 18 milliseconds to 291
seconds. The timer is pr otected from being enabled ac ci­dently. You program the timer by using registers in the ISA
I/O memory map. For more information, see Chapter 9.

The physical connectio n to the networ k is through an RJ45 Ethernet 10/100
BASE-T shielded twisted-pair connec tor, which supports a maximum distance
between nodes of 100 feet. The Ethernet controller supports front access I/O
through the SBC or rear access I/O through a rear transition module. By defaul t,
the SBC is set up for rear access I/O. If you want to use the connector on the
SBC, you must set the Ethernet jumper accordingly, as explained in Section 6.4.

SBC Functional Component s 3–5

Be sure to connect an Ethernet cable to only one of the available system
Ethernet connectors. Powering the system on with cables connected to
both connectors can damage your system.

_________________________________________________________

Vergewissern S i e s i ch, daß S i e n u r ei n E t h ernet-Kabel nur an ei ne d er
verfügbaren Ethernet-Anschlüsse anschließen. Wenn an beiden
Anschlüssen Kabel angeschlossen sind und Sie das System
einschalten, kann das System beschädigt werden.
_________________________________________________________

3.9 Ultra SCSI Controller

The Ultra SCSI controller (Adapte c , AIC 7880) allows you to at tach up to seven
narrow SCSI devices or a mix of 14 wide and narrow SCSI devices to your sys­tem. You can attach SCSI devices to the front, rear , or both the fr ont and rear of
the system.

Caution

Vorsicht!

The controller’s circuitry provides for automatic termination when a device is
connected t o the fro n t or rear of the s y stem . Ground pins on the SCSI connector
are reassigned to act as cable or device detects. Two ground pins distinguish
between 16- and 8-bit devices.

The active SCSI terminator is the Dallas Semi conductor DS2105Z. The termina­tor’s power -down pin (PD-) disconnects the termination from the bus when it is
driven low. This pin has an internal pull-up res istor.

Figure 3–2 shows the SCSI termination scheme. As the figur e shows, pin E5 is
grounded. This disabl es the SBC’ s term inator s next to J4. This is due to the end of
the SCSI bus being at the 68-pin connector on the rear transition module. If you
connect a non-wide device into the rear transition module’s 68-pin connector, pin
50 becomes grounded. This turns off the terminators for the CTRL and SCD0-7
signals. The last device on the cabl e provides termination for these signals.

3–6 SBC Functional Components

Figure 3–2 SCS I Termi nation

SBC Rear Transition Module

WCD

68-pin

SCSI

CD

1

50

DS2105Z

Termination

DS2105Z

Termination

DS2105Z

Termination

1

WCD

68-pin

SCSI

CD

50

ML014488

PD

PD

PD

SCD8-15

SCD0-7

CTRL

AIC7880

PD

Termination

PD

Termination

PD

Termination

DS2105Z

DS2105Z

DS2105Z

J4

TMD

SCD8-15

DS2105Z

PD

Termination

J4

E5

SCD0-7

DS2105Z

PD

Termination

CTRL

DS2105Z

PD

E5

Termination

If you connect a wide device into the rear transition module’s 68-pin connector,
pin 1 is grounded and all three terminator s a re turned off. In this case, you must
connect a wide device at the end of the cable.

Note

If you use a 68-to-50 pin SCSI adapter, the adapter must have straight
through connections with no pins hooked together. With this controller’s
termination scheme, some of the se adapters short all ground p ins together
causing the terminator for the SCD8-15 signals to be turned off when it
should not be.

3.10 Video Controller

The Cirrus Logic PCI video controlle r (GD5446) provides video support for sys­tems that do not include a CompactPCI video a dapter option module. The control­ler supports DDC2 display data channe l serial monitor communications. If you
install a CompactPCI vide o module in your syst em, the onboar d video is dis abled
by default. This default set ting allows you to upgrade video simply by install ing
the option module. You also have the option of disabling the video support com­pletely, if appropriate for your application.

SBC Functional Component s 3–7

The SBC provides 1 MB of onboard video memory for the Cirrus Logic 64-bit
V isualMed ia Acce lerato r (GD544 6) that p rovide s the s ta ndard VGA a nd exte nded

video modes listed in Tables 3–3 and 3–4.

Table 3–3 Standard Video Modes

Mode

1

VESA
Mode

2

Colors

Char. xRChar.

Cells

Pixels

Display
Mode

Pixel
Freq.

Hori zontal
Freq.

Vertical
Freq.

00/01 - 16/256 40x25 9x16 360x400 Text 14 31.5 70
02/03 - 16/256 80x25 9x16 720x400 Text 28 31.5 70
04/05 - 4/256 40x25 8x8 320x200 Graphics 12.5 31.5 70
06 - 2/256 80x25 8x8 640x200 Graphics 25 31.5 70
07 - mono 80x25 9x16 720x400 Text 28 31.5 70
0D - 16/256 40x25 8x8 320x200 Graphics 12.5 31.5 70
0E - 16/256 80x25 8x8 640x200 Graphics 25 31.5 70
0F - mono 80.25 8x14 640x350 Graphics 25 31.5 70
10 - 16/256 80x25 8x14 640x350 Graphics 25 31.5 70
11 - 2/256 80x30 8x16 640x480 Graphics 25 31.5 60
11+ - 2/256 80x30 8x16 640x480 Graphics 31.5 37.9 72
11+ - 2/256 80x30 8x16 640x480 Graphics 31.5 37.9 75
12 - 16/256 80x30 8x16 640x480 Graphics 25 31.5 60
12+ - 16/256 80x30 8x16 640x480 Graphics 31.5 37.9 72
12+ - 16/256 80x30 8x16 640x480 Graphics 31.5 37.5 75
13 - 256/256 40x25 8x8 320x200 Graphics 12.5 31.5 70

1

Some modes are not supported by all CL-GD543X controll ers.

2

Some modes ar e not supported by all monitors. The best quality refresh rate for the monitor type is used automatically.

Table 3–4 Extended Video Modes

Mode

1

VESA
Mode

2

Colors

Char. xRChar.

Cells

Pixels

Display
Mode

Pixel
Freq.

Hori zontal
Freq.

Vertical
Freq.

14 - 16x256K 132x25 8x16 1056x400 Text 41.5 31.5 70
54 10A 16.256K 132x43 8x8 1056x350 Text 41.5 31.5 70

7

55

109 16/256K 132x43 8x8 1056x350 Text 41.5 31.5 70
58, 6A 102 16/256K 100x37 8x16 800x600 Graphics 36 35.2 56
58, 6A 102 16/256K 100x37 8x16 800x600 Graphics 40 37.8 60
58, 6A 102 16/256K 100x37 8x16 800x600 Graphics 50 48.1 72
58, 6A 102 16/256K 100x37 8x16 800x600 Graphics 49.5 46.9 75
5C 103 256/256K 100x37 8x16 800x600 Graphics 36 35.2 56
5C 103 256/256K 100x37 8x16 800x600 Graphics 40 37.9 60

3–8 SBC Functional Components

Table 3–4 Extended Video Modes (Continued)

Mode

1

VESA
Mode

2

Colors

Char. xRChar.

Cells

Pixels

Display
Mode

Pixel
Freq.

Hori zontal
Freq.

Vertical
Freq.

5C 103 256/256K 100x37 8x16 800x600 Graphics 50 48.1 72
5C 103 256/256K 100x37 8x16 800x600 Graphics 49.5 46.9 75
5Di 104 16/256K 128x48 8x16 1024x768 Graphics 44.9 35.5 43
5D 104 16/256K 128x48 8x16 1024x768 Graphics 65 48.3 60
5D 104 16/256K 128x48 8x16 1024x768 Graphics 75 56 70
5D 104 16/256K 128x48 8x16 1024x768 Graphics 77 58 72
5D 104 16/256K 128x48 8x16 1024x768 Graphics 78.7 60 75
5E 100 256/256K 80x25 8x16 640x400 Graphics 25 31.5 70
5F 101 256/256K 80x30 8x16 640x480 Graphics 25 31.5 60
5F 101 256/256K 80x30 8x16 640x480 Graphics 31.5 37.9 72
5F 101 256/256K 80x30 8x16 640x480 Graphics 31.5 37.5 75
60i 105 256/256K 128x48 8x16 1024x768 Graphics 44.9 35.5 43
60 105 256/256K 128x48 8x16 1024x768 Graphics 65 48.3 60
60 105 256/256K 128x48 8x16 1024x768 Graphics 75 56 70
60 105 256/256K 128x48 8x16 1024x768 Graphics 77 58 72

4

4

60 105 256/256K 128x48 8x16 1024x768 Graphics 78.7 60 75
64 111 64K - - 640x4 80 Graphics 25 31.5 60
64 111 64K - - 640x4 80 Graphics 31.5 37.9 72
64 111 64K - - 640x4 80 Graphics 31.5 37.5 75

3

65

3

65

3

65

3

65
66 110 32K
66 110 32K
66 110 32K
67 113 32K
67 113 32K
67 113 32K
67 113 32K

114 64K - - 800x600 Graphics 36 35.2 56
114 64K - - 800x600 Graphics 40 37.8 60
114 64K - - 800x600 Graphics 50 48.1 72
114 64K - - 800x600 Graphics 49.5 46.9 75

3

- - 640x480 Graphics 25 31.5 60

3

- - 640x480 Graphics 31.5 37.9 72

3

- - 640x480 Graphics 31.5 37.5 75

3

- - 800x600 Graphics 36 35.2 56

3

- - 800x600 Graphics 40 37.8 60

3

- - 800x600 Graphics 50 48.1 72

3

- - 800x600 Graphics 49.5 46.9 75

71 112 16M - - 640x480 Graphics 25 31.5 60

1

Some modes are not supported by all CL-GD543X controll ers.

2

Some modes ar e not supported by all monitors. The best quality refresh rate for the monitor type is u sed automatically.

3

32K direct color/256 color mixed mode.

SBC Functional Component s 3–9

4

A character “i” stands for interlaced mode. 43.5 Hz or 87 Hz interlaced.

5

16M colors, but with 32 bit-per-pixel format. 16M+A indicates the same.

6

Implementations us ing the CL-GD5434 controller restrict 10 24x768 at 72 Hz refresh. In tho se implementations, 70 Hz

refresh is substituted. For a high er refresh ra te select 75 Hz.

7

Mode 55 uses a 16 dot high font wit h the bottom two lines truncated in the absence of the 8x14 font TSR (TSRFONT).

The chara cte rs “g, ” “j ,” “p,” “q ,” “y,” and “y” are trunca te d usi ng a mi ddle and bott om li ne alg ori thm to avoid tru nca ti on
of desce nders. For compatibility with MS-DOS applications that use the 8x14 font, use the TSRFONT utility.

8

VESA has recently propos ed a new specification for 43 Hz interlace d and 60 Hz timing for 1280x1024 resolution

modes. Currently Cirrus Logic uses timings for the se modes other than the timings proposed.

3.11 Ultra I/O Controller

The Ultra I /O controller (SMC, FDC37C932) resides on t he ISA bus and provides
an interface to the diskette interface, parallel port, serial ports, USB, and PS/2
mouse and keyboard ports. This contr oller also provides the real-tim e cloc k and
battery backed CMOS RAM.

3.11.1 Diskette Interface

The diskette interface supports a 3.5” 1.44 MB diskette dr ive by way of a diskette
drive header on a rear transition module.

For information on enabling and disabling the diskette interface, see Sect ion 5.8 .

3.11.2 Parallel Port

The parallel port (front or rear) operates in a normal, extended capabilities port
(ECP), or enhanced parallel port (EPP) mode. The ECP and EPP modes are bidi­rectional data tra nsfer modes that adhere to IEEE P1284 specifications. ECP
mode uses the DMA protocol to achieve transfer rates of approximately 2.5 MB
and provides symmetric bidi rec tional communications. EPP mode uses existi ng
parallel port signals to provide asymmetric bidirectional data transfers that are
driven by a host device.

For information on configu ri ng support for a parallel port, see Section 5.12. Fo r
information on the parallel port connector, see Section 7.4.

3.11.3 Serial Ports

The SBC supports two serial ports (front or rear) that are 16550 compatible and
can operate at up to 1 20 K ba ud w ith E SD pro te ction t o 1 5 KV.

For information on enabling or disabling serial ports, see Section 5.11. For infor­mation on the serial port connectors, see Section 7.6.

3.11.4 USB Ports

The SBC supports two USB ports (front or rear) that are capable of transfer rates
of 1.2 Mb/sec to 12 Mb/sec. You can route USB signals to the front panel of the
SBC or a rear transition module. The signals are ro uted for rear access I/O by
default. If your application requires the use of the USB ports on the front panel of
the SBC, you must remove the jumper block as shown in Section 6.4.

For information on configu ri ng USB support, see Section 5.13. For information
on the USB port connectors, see Section 7. 7.

3–10 SBC Functional Components

3.11.5 Keyboard/Mouse Inte rf ace

The keyboard/mouse int erface supports keyboard an d mouse por ts (front or rear).
On the SBC, the keyboard and mouse connect to a single front panel PS/2 key­board/mouse connector through a standard PS/2 Y-cable. It is also possible to use
connectors on a rear transition module.

For informati on on configuring keyboard and mouse suppor t, see Section 5.6. For
information on the keyboar d/mou se connector, see Sect ion 7.5.

3.12 LM78 System Monitor

The LM78 system monitor resides on the ISA bus and allows you to:

• M easure and set maximum and minimum thresholds for +3.3 V, +5.5 V, +12

V, –12 V, and CPU core voltages

• Monitor intrusions

• Monitor fan tachometer (T ACH) signals

• Monitor the SBC temperature and set a maximum temperature threshold and a

minimum (hysteresis) limit

T o use t he monitor int rusion f eature, an exter nal sens or with a rear access
I/O connector must be install ed in the system.

Note

You can program the LM78 to assert either nonmaskable interrupt (NMI) or sys­tem management interrupt (SMI) interrupt signals when a monitored event (for
example, when the system crosse s a specifi ed threshold ) occurs. Thes e signals are
preconfigured to outp ut a logic low bas ed on input to the LM78 device.

You should enable the SMI interrupt signals f or monitori ng the SBC temper ature.
To protect the CPU from damage and to ensure reliable operation, set the maxi­mum temperature threshold to 55 C.

You configure the server management features with the WINBIOS Setup utility.
For information on system management, se e Chapter 9. For information on con­figuring the LM78 system management features, see Section 5.18.

°

SBC Functional Component s 3–11

This chapter introduc es you to and expl ains how to set up your system. Topics
include:

• Powering the System On

• Considering System Configuration Changes

• Powering the System Off

• Restarting the System

4.1 Powering the System On

To power the system on, press the On/Off button on the front panel of the power

supply bay as shown in Figur e 4–1. The button stays depre ssed in the On (1) posi­tion.

Figure 4–1 P ow ering the System On

4

System Startup

4.1.1 System Startup

Figure 4–2 shows the system startup screen display. The callouts in the figure
identify the following:

1 The CPU type and speed.
2 Power-on self test (POST) diagnostic messages.

1

ML014310

System Startup 4–1

When you power on or reset the system, AMIBIOS runs the POST diag­nostics. The POST diagnostic that is identified on the screen is the mem­ory test.

3 Instruction on how to invoke the WINBIOS Setup utility.

If you need to adjust the system configuration, press the Delete key.

4 AMIBIOS identification string.

Figure 4–2 S ystem Startup Screen Display

American

Megatrends

1

Pentium (MMX), 233MHz
Checking NVRAM...

2

xxxxxxKB OK

3

Hit <Del> If you want to run SETUP

(C) American Megatrends Inc.
xx-xxxx-xxxxxx-xxxxxxxx-xxxxxx-xxxx-x

4

AMIBIOS (C) 1996 American Megatrends Inc.

ML014439

When the memory tests co mplete, AMIBIOS configure s the I DE devices and the n
prompts you to press Ctrl/A if you want to run the SCSISelect Utility.

When the POST diagnostics complete, AMIBIOS disp lays the system’s configu­ration as shown in Figure 4–3.

Figure 4–3 S ystem Con figuration Screen Display

Main Processor
Math Processor
Floppy Drive A:
Floppy Drive B:
AMIBIOS Date
Processor Clock
Power Management

Pentium MMX

:

Built-in

:

1.44 MB 3 1/2"

:

None

:

03/13/98

:

233MHz

:

APM, SMI

:

Base Memory Size
Ext. Memory Size
Display Type
Serial Port(s)
Parallel Port(s)
External Cache

640 KB

:

130048 KB

:

VGA/EGA

:

3F8, 2F8

:

378

:

512 KB, Enabled

:

4–2 System Startup

Hard Disk(s)
Primary Master

Primary Slave::
PCI Devices:

PCI Onboard USB Controller, IRQ10
PCI Onboard SCSI, IRQ10
PCI Onboard VGA
PCI Onboard VGA

Cyl
14848

CDROM

Head9Sector63Size

LBA

32Bit

Mode

4111 MB

PCI Onboard IDE
PCI Onboard PCI Bridge
PCI Onboard Ethernet, IRQ9
PCI Onboard Ethernet, IRQ9

LBA

Mode
On

Block
Mode
16 Sec

PIO
Mode
4
3

ML014440

4.1.2 BIOS Version

After displaying the configuration, AMIBIOS identifies the version of the BIOS

that is running. Figure 4–4 shows the BIOS version message.

Figure 4–4 BIOS Version Screen Display

Digital Equipment Corporation 1998 V1.00**

ML014441

4.1.3 System Management Measurement and Status Screen Display

AMIBIOS then rep ort s the measurement and status of the system’s voltages, fa ns,
temperature, and intrusion. Figure 4–5 shows how this information is reported.

Figure 4–5 S ystem Manag em ent Me asur ement and Status Scre en Display

CPU Voltage Measurement
Voltage 1 Measurement
Voltage 2 Measurement
Voltage 3 Measurement
Voltage 4 Measurement
CPU Fan Speed
Fan 2 Speed
Fan 3 Speed
Temperature Measurement
Intrusion Alert

:
:
:
:
:
:
:
:
:
:

2.70V

3.47V

5.08V

12.03V

-12.06V
No T ach
No T ach
No T ach

29 C

Disabled

CPU Voltage Status
Voltage 1 Status
Voltage 2 Status
Voltage 3 Status
Voltage 4 Status
CPU Fan Status
Fan 2 Status
Fan 3 Status
Temperature Status
Intrusion Status

:

Pass

:

Pass

:

Pass

:

Pass

:

Pass

:

Fail

:

Pass

:

Pass

:

Pass

:

Pass

ML014442

The BIOS then tries to find the boot device.

Note

A normal power-up emits a single blink on the status LED on the front
panel of the CPU module. A sequence of blinks during startup indicates
errors. If the system fails the sta rtup tests or you see multiple blinks and
the system halts, power the system off, wait approximately 15 seconds,
and then power it on again. If the system continues to fail the tests or
emits multiple blinks , con sult Chapter 10 for information on trouble­shooting possible problems.

4.2 Considering System Configuration Changes

Depending on the option modules installed, the I/O devices being used, and other
application- specific system requirements, you may need to adjust the system con­figuration. Chapter 5 explai ns how to use the BIOS setup utility to verify and
change system configuration settings.

System Startup 4–3

4.3 Powering the System Off

You may need to power the system off to resolve system hangs or similar prob­lems.

Before you power your computer off, make sure you save and close all
open files if at all possible. If the system shuts down before you save and
close open files, you may lose data.

To power the system off:

1. Close application data files that are open.

2. Close applications that are running.

3. Click the Start icon at the lower left corner of your screen.

4. Click the Shutdown icon and then on Yes to shut down your system.

5. After the message You can now safely turn off your com-
puter appears on the screen, press the power On/Off button on the front
panel of the power-supply module.

If you need to power y our system of f for an exte nded peri od, power the syst em off
and unplug the power cord from the system’s power inlet.

Caution

4.4 Restarting the System

You can restart your system by using a hard boot or a soft boot.

Method How to Invoke Action Performed

Hard boot Power the system off for five sec-

onds, then back on, by pressing
the power On/Off button on the
front panel of the power supply
module.

Soft boot Press [Ctrl]/[Alt]/[Delete] Does not run memory tests but

Runs memory tests and cle ars all
terminate stay resident (TSR) pro­grams and memory registers.

clears all TSR programs and
memory registers.

4–4 System Startup

5

Configuring the System

This chapter expla ins how to configur e a DIGIT AL 5/233i -8 CompactPCI syst em,
using the American Megatrends’ WINBIOS Setup utility. Topics include:

• About WINBIOS Setup

• WINBIOS Basics

• Setting the Date and Time

• Configuring System Security

• Configuring a Display Monitor and Adapter

• Configuring Keyboard and Mouse Support

• Configuring Hard Disk and CD–ROM Devices

• Configuring the Diskette Drive

• Configuring the Onboard SCSI Controller

• Configuring the Onboard Ethernet Controller

• Configuring Onboard Serial Ports

• Configuring the Onboard Parallel Ports

• Configuring USB Support

• Configuring Memory

• Configuring Boot Options

• Configuring Display Modes

• Configuring PCI Plug and Play Capabilities

• Configuring LM78 System Management Features

• Updating the BIOS Flash

5.1 About WINBIOS Setup

WINBIOS Setup enables you to select and store information about the system’s
hardware and software in the battery- backed memory of CMOS RAM. The stor ed
information takes effect each time the system boots and you can change it at any
time by using WINBIOS Setup.

Configuring the System 5–1

Caution

Be sure to read and understand the information in this chapter before
attempting to change the factory BIOS settings. If you are not careful,
you can adjust settings such that the system will not operate properly.

Vorsicht!

_________________________________________________________

Wichtig! Bevor Sie die ab Fabrik eingestellten BIOS-Einstellungen

ändern, sollten Sie die Informationen in diesem Kapitel gelesen und
verstanden haben. Wenn Sie bei der Änderung der BIOS-Einstellungen
nicht sorgfältig vorgehen, können Sie die Einstellungen so verändern,
daß das System nicht mehr einwandfrei funktioniert.
_________________________________________________________

WINBIOS Setup is an easy-to-use configuration tool that features a window and
icon-based graphi cal user interface (GUI). The main window groups the setup
options into four subwindo ws:

Window... Allows You to Set...

Setup System configuration options
Security Password and anti-virus c hecking options
Utility IDE detection and a language for prompts and messages
Default Options as original (for a given session), optimal, or fail-safe

Withi n each of these windows, icons identify categorie s or types of configuration
information. For example, a chipset icon identifies chipset configuration options.

The main window also includes a message bar, which appears across the bottom
of the window. Messages that appear in this bar describe the items on whic h you
click within the window.

You can use a keyboard or mouse to point and click configuration categories and
navigate through pop-up option menus.

5.2 WINBIOS Basics

Sections 5.2.1 through 5.2.7 introduce you to WINBIOS Setup by discussing the
following:

• Configuration categories, Section 5.2.1

defaults

• How to get help, Section 5.2.2

5–2 Configuring the System

• How to use the mouse, Section 5.2.3

• How to use the keyboard, Section 5. 2.4

• Automatic option selection, Section 5.2.5

• How to start WINBIOS Setup, Section 5.2.6

• How to exit WINBIOS Setup, Section 5.2.7

• How to use default WINBIOS settings , Sec tion 5.2.8

5.2.1 Configuration Categories

T able 5–1 lists the categories of configuration information that you can set. The
categories are represented as icons in the four windows that appear within the
WINBIOS main menu. Figure 5–1 shows how you can maneuver through the
setup windows.

Table 5–1 WINBI OS Se t up C on f ig ura tion Categories

Category ... Allows You to Set...
Setup Window

Standard Primary and secondary master and slave ID E device o p tions, date

Advanced System performance options: quick boot, ATAPI removable

and time, and diskett e device options.

media device (ARMD) as a diskette or hard disk drive, boot
sequence, initial and ROM initialization display mode, diskette
and hard disk access control, hard disk S.M.A.R.T., boot Num­Lock, diskette drive swap and seek, PS/2 mouse and keyboard
support, primary display , password check, boot OS/2 , boot mes ­sages, and cache and shadowing options.

Chipset Chipset options: universal serial bus (USB) enable, USB key-

board and mouse legacy support , USB pass ive rel ease enable , and

DRAM timing options.
Power management Power cons ervation options. These options are not supported.
PCI plug and play PCI plug and play options: plug and play aware operating sys tem

enable, PCI latency timer, PCI IDE bus master, DMA channel,

IRQ, reserved memory size, and reserved memory addresss

options.
Peripheral I /O sup port options : onboard d isket te dri ve control ler , ser ial po rts ,

IDE controller, SCSI controller, and Ethernet controller option s,

and system management options.

Secu ri ty Win d ow

Supervisor Supervisor password
User User password
Anti-virus Anti-virus software enabled or disabled.

Utility Window

Configuring the System 5–3

Table 5–1 WINBI OS Se tu p C on f iguration Cate go rie s (Con tin ue d )

Category ... Allows You to Set...

Detect IDE The programmed I/O mode, block mode, and large (LBA) mode.

Language English onl y.

Default Window

Original All option setti ngs back to the valu es present at th e start of the

Optimal Optimal option values for optimizing system performance. Fac-

Fail-safe Fail-safe option values for system sta bility.

Figure 5–1 WINB IO S Setup

Setup

Also shows the settin gs of auto-detected IDE device s , including
the device type, number of cylinders, number of heads, write pre­compensation, number of sectors , and capacity.

setup session.

tory default.

Main

Security

Utility

Standard

Options

- Date / time

- Primary
master / slave
storage

- Secondary
master / slave
storage

- Diskette devices

Supervisor

Advanced

Options

- Quick boot

- ARMD emulated
as

- Boot sequence

- Display modes

- Storage device
access control

- S.M.A.R.T.

- Boot up num-lock

- Diskette swap
and seek

- PS/2 mouse

- System keyboard

- Primary display

- Password check

- Boot OS/2

- Wait for F1
message

- Hit Del message

- Internal cache

- External cache

- BIOS cacheable

- Cnnn, 16K
shadow

User

Chipset

Options

- USB function

- USB legacy
keyboard and
mouse

- USB passive
release

- DRAM timings

Anti-virus

Power

Management

Options

- Enable

- Green PC
monitor
power state

- Power
down modes

- Hard disk timeout

- Standby timeout

- Suspend timeout

- Slow clock ratio

- IRQs

PCI

Plug and Play

Options

- Enable

- PCI latency timer

- IDE bus master

- DMA channels

- IRQs

- Reserved
memory size

- Reserved
memory address

Peripheral

Options

- Diskette controller

- Serial ports

- Parallel port

- IDE controller

- SCSI controller

- Ethernet
controller

- Voltage fault
alarm

- Voltage limits

- Intrusion alarm

- SBC temperature
alarm

- SBC temperature
limits

Detect IDE

Default

Original

5–4 Configuring the System

Language

Optimal

Fail-safe

5.2.2 Getting Help

In addition to the messages that appear in the message bar on the main window ,
WINBIOS Setup provides Help screens for options on the Advanced, Chipset,
Power Management, and Peripheral setup windows and use of the mouse and key­board.

T o get help on a specific setup option, clic k the opti on and then press Alt+H. For
help on mouse or keyboa rd usage, press Alt/H while the input focus is outside the
context of the windows that offer setup option help.

5.2.3 Using the Mouse

WINBIOS Setup supports the following mous e devic es:

• P S/2 typ e

• Mice that use IRQs 3, 4, or 5 (IRQ2 is not supported)

• Microsoft compatible M, V, and W Series that use the and M and M+ proto-

cols

• Logitech C-Series compatible that use the MM protocol

Use the mouse as follows:

To... Do...

Select a category of con figuration options Double-click MB1 on the category icon
Move to an option field Single-click MB1 on the option field or

click the up or down arrow o n th e scr oll bar
until you reach the field of choice

Select or change the values of global and
selected options

Increment a value Single-cli ck MB1 on the + button
Decrement a value Single-click MB1 on the – button

Close the current pop-up window and
return to the previous level

Return to the beginning of the text Single-click MB1 at the beginning of the

Advance to the end of the text Single-click MB1 at the end of the text
Enter alphabetic input in the virtual key-

board (not case-sensitive)
Enter numeric input in the virtu al keyboard

and numeric keypad

Single-click MB1 on the option field

Single-click MB1 on the small square but­ton in the upper left cor ner of the window

text

Single-click MB1 on each input value

Single-click MB1 on each input value

Configuring the System 5–5

5.2.4 Using the Keyboard

You have the option of using a keyboard to navigate through and set option valu es
in the WINBIOS configuration windows. Use the keyboard as fol lows:

To... Press...

Move to the next window or option field [Tab]
Move to the next option field to the right,

left, above, or below
Select the value in the current option fiel d [Enter]
Incre m e n t a value [Shift] + [+ ]
Decrement a value [–]

Close the current window and return to the
previous level

Return to the previou s window [Page Up]
Advance to the next window [Page Down]
Return to the beginni ng of the text [Home]
Advance to the end of the text [End]
Access a help window [Alt]+[H]
Exit WINBIOS Setup [Alt]+[Spacebar]
Enter alphabetic input in the virtual key-

board (not case-sensitive)
Enter numeric input in the virtu al keyboard

and numeric keypad

5.2.5 Automatic Option Selection

Righ t, lef t, up, or dow n key b oard arr ow
keys (keypad arrow keys are not supported)

[Esc]

Alphabetic keys

Numeric keys

AMIBIOS is configured to reflect dependencies between AMIBIOS features and
WINBIOS Setup options. For example, the External Ca che option in the
Advanced Setup window is c onfigured to be displayed f or the DIGITAL 5/233i-8
CompactPCI system because the syst em has secondar y cache memory installed.
However, if secondary cache memory were not present, AMIBIOS would be con­figured such that the External Cache option is omitted.

If the selection of a WINBIOS option setting determines the settings for one or
more other options, AMIBIOS automatically assigns values to dependent se ttings
and does not allow you to change those settings unless you change the setting for
the parent option. Invalid options appear in gray type.

For example, you can set the Onboard Serial Port options to Auto, Disabled,
3F8h, 2F8h, 3E8h, or 2E8h. If you set Onboard Serial Port 1 to 2F8h, AMI-
BIOS disables the 2F8h value for Onboard Serial Port 2.

5.2.6 Starting WINBIOS Setup

If the system powers on successfully, the BIOS displays identification informati on
and the following instructions on how to invoke WINBIOS Setup:

5–6 Configuring the System

Hit <D EL> if y ou w ant t o run SE TU P

Press the Delete key to start WINBIOS Setup.

5.2.7 Exiting WINBIOS Setup

T o exit WINBIOS Setup , press the Alt and Spaceba r keys simultane ously. An exit
setup window appea rs. If you have made cha nges that you want to pr eserve, save
the changes and exit. Otherwise, just exit.

5.2.8 Using Default WINBIOS Settings

WINBIOS Setup offers two groups of default settings and a mechanism for recall­ing settings that were enable d at the start of a configuration session. You can use
these features to:

• Expedite the configur ati on process

• Optimize the configuration for performance

• Optimize the configuration for stable operation

• Recover when the system is having configuration-related problems

T o use a default setting:

1. Select one of the following icons in the Default window:

T o... Select...

Recall the syst em configuration sett ings
that were in effect at the start of the current
WINBIOS Setup sessi on

Load system configuration settings that
optimize sys te m pe r f ormance

Load system configuration settings that
provide far from optimal performance, but
are the m o st st a bl e

Note

Original

Optimal

Fail-Safe

The factory configuration uses the Optimal settings, and AMIBIOS auto­matically loads the Optimal settings if CMOS RAM is corrupted.

2. Respond to the No/Yes prompt.

3. Exit the Option window.

Note

Throughout the remainder of this chapter, default settings apply to both
the Optimal and Fail-Safe group settings unless specified otherwise.

Configuring the System 5–7

5.3 Setting the Date and Time

To set the date and time:

1. Select the Standard icon in the Setup window.

2. Select the Date/Time icon in the Standard Setup window.

3. Select a date or time value to change. The selected value is highlighted.

4. Select the + button to increase the value or the – button to decrease the value.

5. Repeat steps 3 and 4 for other values that need to change.

6. Exit the Date and Time window.

7. Exit the Standard Setup window.

5.4 Configuring System Security

You have the option of setting the following system security featur es:

• Supervisor password

• User passwords

• Password checking to run WINBIOS Setup

• Password checking when the system is powered on and to run WINBIOS

Setup

• Enable anti-virus ch ecking

Sections 5.4.1 through 5.4.3 explain how to:

• Set up password security

• Change a password

• Enable anti-virus protection

5.4.1 Setting Up Password Security

To set up password security:

1. Select the Supervisor icon in the Security window.
You must set up a supervisor password prior to setting up any user pass-

words.

2. Enter a 1- to 6-character password in the input field of the Supervisor Setup
window by using one of the following methods:

– Type the password on the keyboard.
– P oint and click characters on the virtual keyb oard.
– C onfirm the password.

5–8 Configuring the System

Note

Make note of the password that you enter and keep it in a secure place. If
you forget or lose the password, you must drain CMOS RAM and recon­figure the system.

3. Exit the Supervisor Setup window.

4. Select the User icon in the Security window if you need to set up user pass-

words. If you do not need to set up a user password, skip to step 7.

5. Enter a 1- to 6-character password in the inp ut field of the User Set up window

by using one of the methods listed in step 2.

Note

Make note of the password that you enter and keep it in a secure place. If
you forget or lose the password, you must drain CMOS RAM and recon­figure the system.

6. Exit the User Setup window.

7. Decide whether it is sufficient that the system prompt for and check a pass-

word only when someone attempts to run WINBIOS Setup. This is the
default level of security if a password has been set. If this level of security is
sufficient, skip to step 12. If it is necessary for the system to also prompt for
and check a password each time the system is powered on, continue to step 8.

8. Select the Advanced icon in the Setup window.

9. Select the Password Check option.

10. Select the option value Always. When set, this value causes the system to

prompt for and check a password each time the system is powered on and
when someone attempts to run WINBIOS Setup. The value Setup instructs
the system to prompt and check f or a password only whe n WINBIOS Setup is
run.

11. Exit the Option window.

12. Exit the Advanced Setup window.

5.4.2 Changing a Password

To change a password:

1. Select the Supervisor or User icon in the Security window, as appropriate.

2. Enter a 1- to 6-character password in the input field of the Supervisor Setup

window by using one of the following methods:

– Type the password on the keyboard.
– P oint and click characters on the virtual keyb oard.

Configuring the System 5–9

Make note of the password that you enter and keep it in a secure place. If
you forget or lose the password, you must drain CMOS RAM and recon­figure the system.

3. Reenter the new password as prompted.
If the password confirmat ion is inc orrect, an error message appears. Try

reentering the passwor d.
If the password confirmat ion is correct, the new password is stored in

CMOS RAM when WINBIOS Setup exits and takes effect the next time
the system boots.

4. Exit the Supervisor Setup or User Setup window, as appropriate.

5.4.3 Enabling Anti-Virus Protection

You have the option of enabling anti-virus protection. This fe ature is disabled by
default. When enabled, AMIBIOS issues a warning when a program (or virus)
issues a disk format command or attempts to write to the boot sector of the hard
disk drive.

The following message s appear after an attempt to format a cylinder, head, or sec­tor of a hard disk drive with the BIOS INT 13 Hard Disk Drive Service:

Note

Format !!!
Possib le VIRUS : Co nti nu e (Y/ N)? _

AMIBIOS displays the following messages whe n a program atte mpts to write to
the boot sector of the hard disk drive :

Boot S ect or Wr it e! !!
Possib le VIRUS : Co nti nu e (Y/ N)? _

If either of these messages appears, you may need to enter N several times to pre­vent the format or write operation.

5.5 Configuring a Display Monitor and Adapter

You may need to configure the syste m’s display monitor support. By default, the
system is set up to support a VGA/EGA display monitor. If you connect a differ­ent type of display monitor or if the system is set up without a display monitor,
you must adjust the configuration.

1. Select the Advanced icon in the Setup window.

2. Select the Primary Display option.

3. Set the option value to Absent, VGA/EGA, CGA 40x25, CGA 80x25, or
Mono, as appropriate.

4. Exit the Option window.

5. Exit the Advanced Setup window.

5–10 Configuring the System

5.6 Configuring Keyboard and Mouse Support

WINBIOS Setup options are available for:

• Configuring systems that do not have a keyboard

• Enabling and disabling support for a PS/2 mouse

5.6.1 Configuring Systems that Do Not Use a Keyboard

If you are configuring a system that does not have a keyboard attached, specify
that a keyboard is not present to suppr ess error messages that the BIOS would dis­play otherwise . By default, the BIOS assumes a keyboard is connected and needs
to be configured. If a keyboard is not present and the system is not configured
accordingly, the BIOS displays error messages.

T o supress err or me ssages resulting from a keyboard not being attached to the sys­tem:

1. Select the Advanced icon in the Setup window.

2. Select the System Keyboard option.

3. Set the option value to Absent (the default is Present).

4. Exit the Option window.

5. Exit the Advanced Setup window.

5.6.2 Disabling and Enabling Support for a PS/2 Mouse

By default, the system supports PS/2 mice . I f you are using a mouse type other
than PS/2, you should disable PS/2 mouse support. T o disable or enable PS/2
mouse support:

1. Select the Advanced icon in the Setup window.

2. Select the PS/2 Mouse Support option.

3. Set the option value to Disabled or Enabled, as appropriate.

4. Exit the Option window.

5. Exit the Advanced Setup window.

5.7 Configuring Hard Disk and CD–ROM Devices

Section 5.7.1 provide s configuration information for hard disk drives and Section

5.7.2 explains how to enable and disa ble onboard IDE controller channels. Sec­tions 5.7.3 through 5.7.6 e xplain how to configure the following types of storage
devices:

• Modified frequency modulation (MFM) hard disk drive

• User-defined hard disk drive (SCSI, MFM, RLL, ARLL, or ESDI)

• IDE hard disk drive

• CD–ROM drive

Section 5.7.7 explains how to specify hard disk drive access control.

Configuring the System 5–11

5.7.1 Disk Configuration Information

While configuring a hard disk drive, you may need to enter values for the follow­ing hard disk drive parameters manually:

Table 5–2 Ha rd Disk Drive Parame ters

Parameter Description

Cylinders (Cyl) The number of cylinders in the disk drive.
Heads (Hd) The number of heads.
Write precompensa-

tion (WP)

Sectors (Sec) The number of sectors per track. MFM drives have 17 sectors per

Capacity (Size
(MB))

The track number where write precompensation begins. The size
of a sector gets progressively smaller as the trac k diameter dimin­ishes. Yet each sector must still hold 512 byt es. Write precom pen­sation circuitry on the hard disk compensat es for the physical
difference in sector size by boosting the write current for sectors
on inner tracks.

track. RLL drives have 26 sectors per track. ESDI drives have 34
sectors per track. SCSI and IDE drives have more sectors per
track.

The formatted capacity of the drive is the product of: number-of-

heads X number-of-cylinders X number-of-sectors-per-track X
512-bytes-per-sector.

Table 5–3 lists drive parameter values for typical disk drives.

Table 5–3 Typical Hard Disk Drive Information

Type Cylinders Heads Write Sector Capacity PIO Mo de

User 3128 16 512 63 1.6 GB 4 On On
User 4092 16 512 63 2.1 GB 4 On On

Block
Mode

LBA Mode

User 6256 16 65535 63 3.2 GB 4 On On
User 14848 9 256 63 4.3 GB 4 On On
User 13328 15 65535 63 6.4 GB 4 On On

5.7.2 Enabling and Disabling the Onboard IDE Controller Channels

You can configure the IDE controller to use the IDE primary channel, secondary
channel, or both channels. The onboard IDE controller is set to use both the pri­mary and secondary channels by default. If you need to disable or adjust this set­ting at any time, you can do so as follows:

1. Select the Peripheral icon in the Setup window .

2. Select the Onboard IDE icon in the Peripheral Setup window.

5–12 Configuring the System

3. Select one of the following option values:

To... Select...

Disable the controller Disabled
Set the controller t o u se the primary channel (the default) Primary
Set the controller to use the secondary channel Secondary
Set the controller to use the primary and secondary channels (th e

default)

4. Exit the Option window.

5. Exit the Peripheral Setup window.

5.7.3 Configuring MFM Hard Disk Drives

T o configure an MFM hard disk drive:

1. Make note of the following information concerning the disk drive:

– Number of heads
– Number of cylinders
– Number of sectors
– Starting write precompensation cylinder
– Capacity

2. Select the Standard icon in the Setup window.

3. Select the Pri Master, Pri Slave, Sec Master, or Sec Slave icon in the Stan-

dard Setup window, as appropriate.

4. Select the Type option in the device window.

5. Select the 43, 44, 45, or 46 option on the dri ve paramete r window. If the drive

parameters liste d for the type you selected do not match the drive parameters
of the MFM drive, go back to the device window and configure the device as
a user-defined hard disk drive (see Section 8). If the parameters match, con­tinue to step 6.

If the drive type is other than 43 to 46, select User and enter appropriate
values for the parameter s.

Both

6. Exit the drive parameter window.

7. Exit the device window.

8. Exit the Standard Setup window.

5.7.4 Configuring User-Defined Hard Disk Drives

T o configure a user-defined hard disk drive, such as a SCSI drive or an MFM,
RLL, ARLL, or ESDI drive with parameters that do not match the parame ters for
types 43 to 46:

1. Make note of the following information concerning the disk drive:

– Number of heads

Configuring the System 5–13

– Number of cylinders
– Number of sectors
– Starting write precompensation cylinder
– Capacity

2. Select the Standard icon in the Setup window.

3. Select the Pri Master, Pri Slave, Sec Master, or Sec Slave icon in the Stan­dard Setup window, as appropriate.

4. Select the Type option in the device window.

5. Select the User option in the drive paramet er window.
Enter values for the disk drive parameters. Table 5–2 lists typical hard

disk drive parameter values.

6. Exit the drive parameter window.

7. Exit the device window

8. Exit the Standard Setup window.

5.7.5 Configuring IDE Hard Disk Drives

To configure an IDE hard disk drive:

1. Make note of the following information concerning the disk drive:
– Number of heads
– Number of cylinders
– Number of sectors
– Starting write precompensation cylinder
– Capacity

2. Select the Standard icon in the Setup window.

3. Select the Pri Master, Pri Slave, Sec Master, or Sec Slave icon in the Stan­dard Setup window, as appropriate.

4. Select the Type option in the device window.

5. Select the Auto option in the drive parameter window.

6. Select the Detect IDE icon in the Utility window. This utility automatically
detects and displays all IDE parameters, including those for ATAPI CD–
ROM drive s.

7. Click the OK button to accept the parameters. If you are absolutely certain
that you know the correct IDE parameters and you prefer to enter the parame­ters manually, you can do so.

8. Return to the device menu.

5–14 Configuring the System

9. Enter values for the following IDE disk drive options:.

Option Description

LBA/La rge Mode When set to On, enables support for IDE drives with capaci-

ties greater than 528 MB. The default is Off.

If you do not enable this option, the system will all ow use of
up to 528 MB only , even though the operating system sup­ports greater than 528 MB.

Block Mode When set to On, enables suppo rt for IDE d rive s th at us e blo ck

mode. Block mode increases the performance of data trans­fers by increasing the amoun t of data transferred for each
operation. Only 512 bytes of data can be transferred per inter­rupt, when block mode is disabled.
The default is Off.

32-Bit Mode When set to On, enables support for IDE drives that use a 32-

bit data path. The default is Off, allowing use of a 16-bit data
path.

PIO Mode Specifies the programmed I/O (PIO) mode for an IDE drive.

This mode programs timing cycles between the IDE drive
and the progr ammable I DE cont rol ler. As the PIO mode v alue
increases, the cycle time de creases. Valid values are Auto, 0,
1, 2, 3, 4, or 5. Modes
port for the I/O ready (IORDY) signal is required for these
modes.

3 to 7 are advanced PIO modes. Sup-

If you choose to set the PIO mode manually by selecting 0, 1, 2, 3, 4, or 5
you must make absolutely certain that you are selecting a PIO mode sup­ported by the IDE drive.

10. Exit the device window.

11. Exit the Standard Setup window.

5.7.6 Configuring CD–ROM Drives

To configure a CD–ROM drive:

1. Select the Standard icon in the Setup window.

2. Select the Pri Master, Pri Slave, Sec Master, or Sec Slave icon in the Stan-

dard Setup window, as appropriate.

3. Select the Type option in the device window.

4. Select the first ARMD option in the drive parameter window .

If you select mode Auto, AMIBIOS automatically finds the
PIO mode for the drive being configured.

Note

Configuring the System 5–15

5. Select the Detect IDE icon in the Utility window. This utility automatically

detects and displays all IDE parameters, including those for ATAPI CD–
ROM drive s.

6. Click the OK button to accept the parameters. If you are absolutely certain
that you know the correct IDE parameters and you prefer to enter the parame­ters manually, you can do so.

7. Return to the device menu.

8. Enter values for the following IDE disk drive options:

Option Description

LBA/La rge Mode When set to On, enables support for IDE drives with capaci-

ties greater than 528 MB. The default is Off.

If you do not enable this option, the system will all ow use of
up to 528 MB only , even though the operating system sup­ports greater than 528 MB.

Block Mode When set to On, enables suppo rt for IDE d rive s th at us e blo ck

mode. Block mode increases the performance of data trans­fers by increasing the amoun t of data transferred for each
operation. Only 512 bytes of data can be transferred per inter­rupt, when block mode is disabled.
The default is Off.

32-Bit Mode When set to On, enables support for IDE drives that use a 32-

bit data path. The default is Off, allowing use of a 16-bit data
path.

PIO Mode Specifies the programmed I/O (PIO) mode for an IDE drive.

This mode programs timing cycles between the IDE drive
and the progr ammable I DE cont rol ler. As the PIO mode v alue
increases, the cycle time de creases. Valid values are Auto, 0,
1, 2, 3, 4, or 5. Modes
port for the I/O ready (IORDY) signal is required for these
modes.

If you select mode Auto, AMIBIOS automatically finds the
PIO mode for the drive being configured.

Note

3 to 7 are advanced PIO modes. Sup-

If you choose to set the PIO mode manually by selecting 0, 1, 2, 3, 4, or 5
you must make absolutely certain that you are selecting a PIO mode sup­ported by the IDE drive.

9. Exit the device window.

10. Exit the Standard Setup window.

5.7.7 Specifying Hard Disk Drive Access Control

By default, hard disk drives are configured to allow read-write access control. If
necessary, you can change this setting to read-only access.

5–16 Configuring the System

T o change the hard disk drive access control:

1. Select the Advanced icon in the Setup window.

2. Select the Hard Disk Access Control option.

3. Set the option value to Read-Only or Read-Write, as appropri at e.

4. Exit the Option window.

5. Exit the Advanced Setup window.

5.7.8 Enabling and Disabling Hard Disk Drive S.M.A.R.T. Options

You can enable or disable the System Management and Report ing Technologies
(S.M.A.R.T.) protocol for system hard disk drives. This protocol reports server
system information over the network. These options are disabled by default.

To enable or disable the S.M.A.R.T. options:

1. Select the Advanced icon in the Setup window.

2. Select the S.M.A.R.T. for Hard Disk option.

3. Set the option value to Enabled or Disabled, as appropriate.

4. Exit the Option window.

5. Exit the Advanced Setup window.

5.8 Configuring the Diskette Drive

Section 5.8.1 explains how to disable and enable the onboard diskette controller.

Section 5.8.2 explains how to configure the drive’s capacity and size. Section

5.8.3 explains how to specif y the drive’s access control.

5.8.1 Disabling and Enabling the Onboar d Disket te Cont ro ller

The system’s onboard diskette controller is enabled by default. I f you need to dis­able or reenable the controller at any time, you can do so as follows:

1. Select the Peripheral icon in the Setup window .

2. Select the Onboard FDC icon in the Peripheral Setup window.

3. Select one of the following option values:

T o... Select...

Instru ct A M I BIOS to automatically enable and configure the control­ler

Disa ble the co ntroll er (Fail-S a f e de f a u l t) Disabled
Enable and configure the controller manually (Optimal default) Enabled

4. Exit the Option window.

Auto

5. Exit the Peripheral Setup window.

5.8.2 Configuring the Diskette Drive Capacity and Size

T o configure a diskette drive’s capacity and size:

Configuring the System 5–17

1. Make note of the capacity and size of the drive being configured.

2. Select the Standard icon in the Setup window.

3. Select the Floppy A or Floppy B icon in the Standard Setup window, as
appropriate.

4. Select one of the following option values:

– Not installed
– 360 KB 5 1/4”
– 1.2 MB 5 1/4”
– 720 KB 3 1/2”
– 1.44 MB 3 1/2”
– 2.88 MB 3 1/2”

5. Exit the drive parameter window.

6. Exit the Standard Setup window.

5.8.3 Specifying Diskette Drive Access Control

By default, the diskette drive is configured to allow read-write access con trol. If
necessary, you can change this setting to read-only access.

T o change the diskette drive access control to read-only:

1. Select the Advanced icon in the Setup window.

2. Select the Floppy Access Control option.

3. Set the option value to Read-Only or Read-Write, as appropri at e.

4. Exit the Option window.

5. Exit the Advanced Setup window.

5.8.4 Swapping Diskette Drives A: and B:

T o swap diskette drives A: and B: you must enable the Floppy Drive Swap
option. To enable this option:

1. Select the Advanced icon in the Setup window.

2. Select the Floppy Drive Swap option.

3. Set the option value to Enabled.

4. Exit the Option window.

5. Exit the Advanced Setup window.

5.8.5 Configuring Diskette Drive A: to Seek During a System Boot

If you want diskette drive A: to perform a seek operation when the system boots,
enable the Floppy Drive Seek option. To enable this option:

1. Select the Advanced icon in the Setup window.

2. Select the Floppy Drive Seek option.

3. Set the option value to Enabled.

5–18 Configuring the System

4. Exit the Option window.

5. Exit the Advanced Setup window.

5.8.6 Emulating an ARMD as a Diskette or Hard Disk Drive

A TAPI removable media device (ARMD) options allow a primar y master , primary
slave, secondary master, or secondary slave ARMD to emulate a diskette or hard
disk drive. For example, you might use this option to emulate an ATAPI CD–

ROM device as a bootable hard disk drive for system booting purposes.
To set up ARMD emulation:

1. Select the Advanced icon in the Setup window.

2. Select one of the following ARMD options:

– Pri Master ARMD Emulated as
– Pri Slave ARMD Emulated as
– Sec Master ARMD Emulated as
– Sec Slave ARMD Emulated as

3. Select one of the following option values:

T o... Select...

Default to the appropriate storage device type for the device being
used (for example, diskette drive emulation for an LS120 device and
hard disk drive emulation for MO and Imega zip devices)

Disable ARMD emulat ion Disabled

4. Exit the Option window.

5. Exit the Advanced Setup window.

5.9 Configuring the Onboard SCSI Controller

The onboard SCSI controller allows the use of the system’s front and rear SCSI
ports simultaneously. To use either port, the SCSI controller must be enabled.
The controlle r is enabled by def ault. If the appli cati on does not u se the S CSI por ts,
you have the option of disabling the controller.

To disable or enable the controller:

1. Select the Peripheral icon in the Setup window.

2. Select the Onboard PCI SCSI option.

3. Set the option value to Disabled or Enabled, as appropriate.

4. Exit the Option window.

5. Exit the Peripheral Setup window.

Auto

For information about the SCSI controller and SCSI termination, see Section 3.9.

Configuring the System 5–19

5.10 Configuring the Onboard Ethernet Controller

Initially, the system is configured to use a rear I/O access Ethernet port. If you
need to use front access I/O or you need to disable the onboa rd Ethernet control­ler , you ne ed to adj ust t he con figurati on. To use the Ethernet por t on the SBC, you
must set the Ethernet front /rear access I/O jumper , acc ordingly , as explained in
Section 6.4.

To disable or enable the onboard Ethernet controller:

1. Select the Peripheral icon in the Setup window.

2. Select the Onboard Ethernet Controller option.

3. Set the option value to Disabled or Enabled, as appropriate.

4. Exit the Option window.

5. Exit the Peripheral Setup window.

5.11 Configuring Onboard Serial Ports

The serial port configur at ion applies to both the front and rear access serial por ts.
However, you can connect to only the front or rear ports at any given time.

Serial ports 1 and 2 each have an assigned address and associated interrupt. The
optimal default enable s seria l port 1 at address 3F8h and serial port 2 at address
2F8h. If you are using both serial ports, you need to spec ify a dif ferent address for
the second port. If you are using fail -safe defaults, the serial ports are disabled.

If you need to adjust the configuration of the serial ports:

1. Select the Peripheral icon in the Setup window.

2. Select the Onboard Serial Port 1 or Onboard Serial Port 2 option, as
appropriate.

3. Select one of the following option values:

T o... Select...

Instruct AMIBIOS to automatically enab le and conf igure the
port

Disa ble the po r t ( F ai l- S afe def ault) Disabled
Enable and set the base I/O add res s for the port manually

(Optimal default is 3F8h)

4. Specify whether the front or rear access port is being used.

5. Exit the Option window.

6. Repeat steps 2 through 5 to configure the second serial port, if appropriate.

7. Exit the Peripheral Setup window.

5.12 Configuring the Onboa r d Parallel Ports

Auto

3F8h, 2F8h, 3E8h, or
2E8h, as appropriate

The parallel port confi guration applies to both the front and rear access parallel
ports. However, you can connect to only one of the two ports at any given time.

5–20 Configuring the System

To configure the parallel ports:

1. Select the Peripheral icon in the Setup window.

2. Select the Onboard Parallel Port option.

3. Select one of the following option values:

T o... Select...

Instruct AMIBIOS to automatically enab le and conf igure the
port (the default)

Disable the port Disabled
Enable and set the base I/O add res s for the port manually 378h, 278h, or 3BCh, as

Auto

appropriate

4. Exit the Option window.

5. If you selected Auto or Disabled in step 3, skip to step 19.

6. Select the Parallel Port Mode option.

7. Select one of the following option values:

To Enable... Select...

Normal mode. Normal
Enhanced Parallel Port (EPP) mode.

EPP mode supports devices that adhere to the IEEE P1284 EPP speci­fication. This mode uses the existing parallel port signals to provide
asymmetric bidire ctiona l dat a transf er that is driven by the host dev ic e.

Extended Capabilities Port (ECP) mode (the default). ECP mode s up­ports devices that adhere to the IEE P1284 ECP specificat ion. This
mode uses the DMA protocol to achie ve transfer rates of appro xi­mately 2.5 Mbs and provides symmetric bidirecti onal communica­tions.

EPP

ECP

8. Exit the Option window.

9. If you selected Normal or ECP in step 7, skip to step 13.

10. Select the EPP V ersion option.

11. Set the value to 1.7 or 1.9, as appropriate.

12. Exit the Option window.

13. Select the Parallel Port IRQ option.

14. Select one of the following option values:

T o... Select...

Instruct AMIBIOS to select an IRQ line automatically Auto
Set the IRQ line to IRQ 5 or IRQ 7 manually 5 or 7

15. Exit the Option window.

16. Select the Parallel Port DMA Channel option.

Configuring the System 5–21

17. Select one of the following option values:

To... Select...

Instru ct A M I BIOS to select an DMA channel automatically Auto
Set the DMA channel manually 0, 1, or 3

18. Exit the Option window.

19. Exit the Peripheral Setup window.

5.13 Configuring USB Sup port

Sections 5.13.1 through 5.13.3 explain how to:

• Enable and disable USB support

• Enable and disable USB support for legacy keyboards and mice

• Enable and disable the passive release feature of the USB

5.13.1 Enabling and Disabling USB Support

USB support is enabled by default. To disable or reenable the support:

1. Select the Chipset ic on in the Setup window.

2. Select the USB Function option.

3. Set the option value to Disabled or Enabled, as appropriate.

4. Exit the Option window.

5. Exit the Chipset Setup window.

5.13.2 Enabling and Disabling USB Support for Legacy Keyboards and Mice

USB support for legacy keyboards and mice is enabled by defa ult. T o disable or
reenable the support:

1. Select the Chipset ic on in the Setup window.

2. Select the USB Keyboard/Mouse Legacy Support option.

3. Set the option value to Disabled or Enabled, as appropriate.

4. Exit the Option window.

5. Exit the Chipset Setup window.

5.13.3 Enabling and Disabling Passive Release for the USB

By default, the USB passive release option is disabled. If your application
requires t he use of this option, you must e nable it. To enable or disa ble the option:

1. Select the Chipset ic on in the Setup window.

2. Select the U SB Passive Release Enable option.

3. Set the option value to Enabled or Disabled, as appropriate.

4. Exit the Option window.

5–22 Configuring the System

5. Exit the Chipset Setup window.

5.14 Configuring Memory

WINBIOS Setup provides options for configur ing memory. Sections 5.14.1
through 5.14.5 explain how to:

• Specify DRAM speed

• Specify caching options

• Shadow the system BIOS to system memory

• Control the location of the contents of ROM

5.14.1 DRAM Speed Setting

The DIGITAL 5/233i CompactPCI SBC requires that all SIMMs have a RAS
access speed of 60 ns. Thus, the setting of the DRAM Speed option on the
Chipset Setup window must be 60 ns.

5.14.2 Specifying Caching Options

You can disable or enable use of a write- back caching algorithm for Level 1 (L1)
internal cache memory and you can disable or enable Level 2 (L2) secondary
cache. This write-back algorithm for internal cache significantly improves the
performa nc e of data access operat ions.

When optimal default settings are in effect, the write-ba ck algorithm is enabled
for internal cache and external cache is enabled. Caching is disabled when fail­safe default se ttings are in effect.

To modify the caching options for internal or external cache:

1. Select the Advanced icon in the Setup window.

2. Select the Internal Cache or External Cache option, as appropriate.

3. Select one of the following option values:

To... Select...

Disable L1 internal cache and L2 secondary cache (f ail-saf e default) Disabled
Enable L2 secondary cache (optimal default) Enabled
Use the write-back caching al gorithm for L1 internal cache (optimal

default)

4. Exit the Option window.

5. Exit the Advanced Setup window.

WriteBack

Configuring the System 5–23

5.14.3 Setting the DRAM Data Integrity Mode

The DRAM Data Integrity Mode option allows you to enable error correction
code (ECC) Level 1 or Level 2 mode for singl e-bit error correction. When in ECC
Level 1 mode, multibit errors a re detected and re ported as parity errors and single­bit errors are corrected by the chipset. Co rrected bits of data from memory are not
written back to DRAM system memory.

When in ECC Level 2 mode, multibit errors are detected and reported as parity
errors, single-bit errors are corrected by the chipset, and the errors are written
back to DRAM system memory . If a soft (correctable) erro r occurs, writing the
fixed data back to DRAM system memory resolves the problem. Most DRAM
errors are soft errors. If a hard (uncorrectable) error occurs, writing fixed data
back to DRAM system memory does not solve the problem. In this case, the sec­ond time the error occurs in the same location, a Parity Error is reported, indicat ­ing an uncorrectable error. If ECCI is selected, the BIOS automatically enables
the System Management Interface (SMI).

To disable or change the DRAM data integrity mode:

1. Select the Chipset ic on in the Setup window.

2. Select the DRAM Data Integrity Mode option.

3. Set the option to one of the following values:

To... Select...

Disable all DRAM data integrity modes (fail-safe default) Disable
Enab le E C C level 1 mode ECC Level 1
Enable ECC level 2 mode (optim al default) ECC Level 2

4. Exit the Option window.

5. Exit the Chipset Setup window.

5.14.4 Shadowing the BIOS to System Memory

You can optimize the execution of the BIOS by shadowing the contents of the
BIOS ROM to system memory. When shadowing is enabled, the contents of the
BIOS ROM, starting at address F0000h of the system memory segment, are
always copied to system memory, providing faster execution.

When optimal defa ult settings are in effect, the shadowing option is enabled. The
option is disabled when fail- safe default settings are in ef fect.

To change the setting of the shadowing option:

1. Select the Advanced icon in the Setup window.

2. Select the Sy s tem BI O S C a che a ble option.

3. Set the option value to Enabled or Disabled, as appropriate.

4. Exit the Option window.

5. Exit the Advanced Setup window.

5–24 Configuring the System

5.14.5 Controlling the Location of the Contents of ROM

You can control the location of the contents of the 16 KB ROM, beginning at
named memory locations. If no adaptor ROM is using a named ROM area, the
area is made available to the local bus.

To configure the location for a named memory location:

1. Select the Advanced icon in the Setup window .

2. Select one of the following named memory locations:

– C000, 16K Shadow
– C400, 16K Shadow
– C800, 16K Shadow
– CC00, 16K Shadow
– D000, 16K Shadow
– D400, 16K Shadow
– D800, 16K Shadow
– DC00, 16K Shadow

3. Select one of the following option values:

T o... Select...

Write the contents of addresses C000h to C7FFFh to the same
addresses in system RAM for faster execution

Wri te the conte n ts of the named RO M ar ea to the same ad dress in sys­tem RAM for faster execution and allow the associated address space
to be read from and written to cache memory (optimal default)

Not copy ROM to RAM — the co ntents of t he ROM can not be cop ied

to system RAM (fail-safe default)

4. Exit the Option window.

5. Repeat steps 2 and 3 for each option, as appropriate.

6. Exit the Advanced Setup window.

For the Intel Hx chipset, the E000h page is used as ROM during the
POST, but shadowing is disabled and the ROM CS# signal is disabled to
make the E000h page available on the local bus.

5.15 Configuring Boot Options

Enabled

Cache

Disabled

Note

WINBIOS Setup options are available for controlling system boots. Sectio ns

5.15.1 through 5.15.4 explain how to:

• Enable quick boots

Configuring the System 5–25

• Specify the boot device sequence

• Enable the use of numeric keypad arrow keys

• Enable OS/2 compatibility mode

• Disable boot prompts and messages

5.15.1 Enabling and Disabling Quick Boots

You have the option of instructing AMIBIOS to boot quickly when the system is
powered on. When th e Quick Boot option is disabled (the d efault ) and the sys tem
is powered on , AMB IO S test s all system memory and introduces the following
delays:

• Waits up to 40 seconds for a READY signal from IDE hard disk drives.

• Waits for 0.5 second after sending a RESET signal to the IDE drive to allow

the drive time to get ready again.

• Prompts you to press the Delete key to invoke WINBIOS Setup and waits.

Note

If you enable the Quick Boot option, AMIBIOS does not test system
memory above 1 MB and does not introduce the preceding delays. This
ensures a quick boot. However, you must be aware of the following con­sequences:

• If AMIBIOS does not receive a READY signal from an IDE drive imme-

diately, the drive is not configured.

• You will not ha ve an opportunity to invoke WINBIOS Setup.

To enable or disable the Quick Boo t option:

1. Select the Advanced icon in the Setup window.

2. Select the Quick Boot option.

3. Change the option value to Enabled or Disabled, as appropriate.

4. Exit the Option window.

5. Exit the Advanced Setup window.

5.15.2 Specifying the Boot Device Sequence

You can specify the order of devices from which AMIBIOS is to attempt to boot
the system. By default, AMIBIOS uses the following boot sequence:

1. 1st — Floppy

2. 2nd — 1st IDE-HDD

3. 3rd — ATAPI CD–ROM

4. Other — Yes

T o specify a boot device sequence:

5–26 Configuring the System

1. Select the Advanced icon in the Setup window.

2. Select the 1st Boot Device option.

3. Set the option value to Disabled, 1st IDE, 2nd IDE, 3rd IDE, 4th IDE,

Floppy, ARMD-FDD, ARMD HDD, ATAPI CD-ROM, SC SI , o r Ne twork.

4. Select the 2nd Boot Device option.

5. Set the option value to Disabled, 1st IDE, 2nd IDE, 3rd IDE, 4th IDE,

Floppy, ARMD-FDD, ARMD HDD, ATAPI CD-ROM, or SCSI.

6. Select the 3rd Boot Device option.

7. Set the option value to Disabled, 1st IDE, 2nd IDE, 3rd IDE, 4th IDE,

Floppy, ARMD-FDD, ARMD HDD, or ATAPI CD-ROM.

8. Select the Try Other Boot Devices option.

9. Set the option value to Yes or No.

10. Exit the Option window.

11. Exit the Advanced Setup window.

5.15.3 Disabling and Enabling the Use of Numeric Keypad Arrow Keys

By default, at system boot time, the keyboard arrow keys and the arrow keys on
the numeric keypad are available . If you want to disable the arrow keys on the
numeric keypad, you can do so by setting the BootUp Num-Lock option.

To disable or enable the use of the numeric keypad arrow keys:

1. Select the Advanced icon in the Setup window.

2. Select the BootUp Num-Lock option.

3. Set the option value to Off or On, as appropriate.

4. Exit the Option window.

5. Exit the Advanced Setup window.

5.15.4 Enabling or Disabling OS/2 Compatible Mode

You have the option of configuring AMIBIOS such that it can run with the IBM
OS/2 operating system. By default this feature is disabled.

To enable or disable OS/2 compatibility:

1. Select the Advanced icon in the Setup window.

2. Select the Boot to OS/2 option.

3. Set the option value to Yes or No, as appropriate.

4. Exit the Option window.

5. Exit the Advanced Setup window.

Configuring the System 5–27

5.15.5 Disabling and Enabling “Hit <DEL >” and “Wait for <F1>” Boot Messages

During a system boot, AMIBIOS displays messages and prompts. One such mes-

sage is the “ Hit <DEL> if you want to run Setup” message . A second message i s
the “Press <F1> to continue” message that may appear while the POST diagnos­tics run. In the case of this se cond message, AMIBIOS waits for a response bef ore
continuing. Both of these messages are enabled by default. To disable them:

1. Select the Advanced icon in the Setup window.

2. Select the Hit <DEL> Message Display or W ait for <F1> If Error option,
as appropriate.

3. Set the option value to Disabled.

4. Exit the Option window.

5. Exit the Advanced Setup window.

5.16 Configuring Display Modes

You can set the system’s initial display mode and the display mode at the time the
BIOS POST initializes an optional adapter ROM.

To specify a display mode:

1. Select the Advanced icon in the Setup window.

2. Select the Initial Display Mode or Display Mode at Add-On ROM Init
option, as appropriate.

3. Set the option value as follows:

For the Option... Set the Value to...
Initial Dis play Mode BIOS or Silent. If you set the option to BIOS, the stan-

dard BIOS boot messages displayed before bootin g the
system appear on the system monitor. If you set the
option to Silent, the s tandard BIOS bo ot mess ages do n ot
appear on t he sys te m mon itor and the s ystem boo ts to the
operating system immediately. Only BIOS error mes­sages appear.

Display Mode at Add-On
ROM Init

Force BIOS or Keep Current. If you set the option to
Force BIOS, the dis play mode currently being used by

AMIBIOS is used. If you se t the opt ion t o Keep Cur ren t,
the current display mode is used.

4. Exit the Option window.

5. Exit the Advanced Setup window.

5.17 Configuring PC I Plug and Pla y C apabilities

WINBIOS Setup plug and play options allow you to:

• Enable the plug and play features

• Set the PCI latency timer

• Declare the PCI IDE bus master

5–28 Configuring the System

• Allocate IRQ lines for PCI devices

• Specify IRQ lines for legacy ISA adapter cards

5.17.1 Enabling and Disabling PCI Plug and Play Features

AMIBIOS detects and enables PCI plug and play ISA adapter cards tha t are
required for system booti ng. In addition, the Windows NT operating system
detects and enables all other plug an d play adap ter cards. The optimal and fail­safe default se ttings for this option are No. However, before adding PCI plug and
play adapter cards to the sys tem, you must set this option to Yes to ensure that the
cards are configured properly.

To enable or disable PCI plug and play features:

1. Select the PCI/PnP icon in the Setup window.

2. Select the Plug and Play Aware O/S option.

3. Set the option value to Yes or No, as appropriate.

4. Exit the Option window.

5. Set other plug and play options, as appropriate.

6. Exit the PCI/PnP Setup window.

5.17.2 Setting the PCI Latency Timer

The default PCI latency timer setting is 64 (PCI clocks). To adjust this setting:

1. Select the PCI/PnP icon in the Setup window.

2. Select the PC I Latency Timer (PCI Clocks) option.

3. Set the option value to 32, 64, 96, 128, 160, 192, 224, or 248. The default is

64.

4. Exit the Option window.

5. Exit the PCI/PnP Setup window.

5.17.3 Declaring the PCI IDE Bus Master

You can declare the IDE controller on the PCI local bus as bus master. As bus
master , the controlle r has specific capabilities for controlling access to the bus. To
declare the controller as bus master:

1. Select the PCI/PnP icon in the Setup window.

2. Select the PC I IDE Bus Master option.

3. Set the option value to Enabled.

4. Exit the Option window.

5. Exit the PCI/PnP Setup window.

Configuring the System 5–29

5.17.4 Allocating IRQ Lines for PCI Devices

When AMIBIOS configures onboard PCI plug and play devices, it acquires an
IRQ line for each device from a pool of avai lable IRQ lines . If you have a need to
explicitly remove an IRQ line from the pool of avai lable line s for explic it use by a
PCI device, remove the line as follows:

Up to four IRQs can be all ocate d to the PCI bu s. The IRQs ar e allocate d accordi ng
to PCI slot position and the capabilities of the PCI option card.

Assuming all IRQs are availabl e to the PCI bus, the order of allocation is as fol­lows: 11, 10, 9, 15, 5, 3, 7, 4, 12, and 14.

To allocate an IRQ lin e to a PC I devi ce :

1. Select the PCI/PnP icon in the Setup window.

2. Select the IRQn option that corresponds to an IRQ line to be allocated.

3. Set the value to PCP/PnP.
AMIBIOS removes the correspondi ng I RQ line f rom the pool of ava ilable

IRQ lines that can be assigned automatically to configured onboard PCI
plug and play devices.

4. Exit the Option window.

5. Exit the PCI/PnP Setup window.

5.17.5 Configuring Legacy ISA/EISA Adapter Cards

The system supports the use of both ISA/EISA plug and play adapter cards and
legacy ISA/EISA adapter cards. By default, the system assumes that any adapter
cards that you install are plug and play cards. If you install a legacy ISA/EISA
adapter card, you need to identify the IRQ lines and DMA channels to be used by
the device and specify the starting address and amount of R OM needed to support
the device.

To configure a legacy ISA/EISA adapter card:

1. Select the PCI/PnP icon in the Setup window.

2. Select the Reserved Memory Size option.

3. Set the option value to 16K, 32K, or 64K, as appropriate.
If multiple ISA/EISA adap ter cards are installed, this value must accomo-

date all cards.

4. Exit the Option window.

5. Select the Reserved Memory Address option.

6. Set the starting address of the reserved area of memory to hexadecimal value
C0000, C4000, C8000, CC000, D0000, D4000, D8000, or DC000.

7. Exit the Option window.

8. Select the IRQn option that corresponds to an IRQ line to be used by
ISA/EISA devices.

9. Set the option value to ISA/EISA.

5–30 Configuring the System

When set to ISA/EISA, AMIBIOS removes the corresponding IRQ line
from the poo l of available IRQ lines that c an be assigned autom at ically to
configured onb oard PCI plug and play de vices. The de fault setting for the
IRQn options is PCP/PnP.

Up to four IRQs can be allocated to the PCI bus. The IRQs are allocate d
according to PCI slot position and the capabilities of the PCI option card.

10. Exit the Option window.

11. Select the DMA Channel n option that corresponds to the DMA channel to

be reserved for use by ISA/EISA devices.

12. Set the option value to ISA/EISA.

When set to ISA/EISA, AMIBI OS removes the corresponding DMA
channel from the pool of available channels that can be assigned auto­matically to configure d onboa rd PCI plug and play devices. The default
setting for the DMA Channel n options is PnP.

13. Exit the Option window.

14. Exit the PCI/PnP Setup window.

5.18 Configuring LM78 System Management Features

Use WINBIOS Setup to configure the following LM78 system management fea­tures:

• Voltage fault ala rm and minimum and maximum limits for the CPU core volt-

age and +3.3, +5, +12, and –12 voltages. A value outside the specified range
triggers the voltage fault alarm.

• Intrusion alarm.

• SBC temperature alarm, a maximum temperature threshold, and a minimum

(hysteresis) l imit. A t emperatur e that e xce eds the maxim um threshol d trigge rs
the temperature alarm. If this occu rs and then the temperatur e fa lls below the
hysteresis value, the temperature alarm is triggered again.

Sections 5.18.1 through 5.18.3 expla in how to con figure these features.

Note

Because the DIGITAL 5/233i-8 CompactPCI system uses variable-speed
fans for cooling, the LM78 fan monitoring feature is disabled.

5.18.1 Configuring Voltage Monitoring Support

To configure voltage monitoring support:

1. Select the Peripheral icon in the Setup window.

2. Select the Volt Fault Alarm option.

Configuring the System 5–31

3. Select one of the following option values:

T o... Select...

Disable voltage monit oring (fail-safe default) Disabled
Enable voltage monitoring through the SMI (opti ma l default) SMI
Enable voltage monitoring through the NMI NMI

4. Exit the Option window.

5. If you selected Disabled in step 3, skip to step 7.

6. Specify a minimum and maximum threshold (as a percentage) for each of the

following voltage options. The default settings for each option is –10% and
+10%.

– +3.3 V Alarm
– CPU Alarm
– +5 V Alarm
– +12 V Alarm
– –12 V Alarm

7. Exit the Option window.

8. Exit the Peripheral Setup window.

5.18.2 Configuring Intrusion Alert Support

T o use the intrusion alert support, an exte rnal sensor with a rear access I/O con­nector must be installed. To configure the support:

1. Select the Peripheral icon in the Setup window.

2. Select the Intrusion Alarm option.

3. Select one of the following option values:

T o... Select...

Disable the intrus ion alarm (the default) Disabled
Enable the intrusi on alarm through the SMI SMI
Enable the intrusi on alarm through the NMI NMI

4. Exit the Option window.

5. Exit the Peripheral Setup window.

5.18.3 Configuring Temperature Monitoring Support

To configure temperature monitoring support:

1. Select the Peripheral icon in the Setup window.

2. Select the SBC Temp Alarm option.

5–32 Configuring the System

3. Select one of the following option values:

To... Select...

Disable temperature monitoring (fail-safe default) Disabled
Enable temperature monitoring through the SMI (optimal

default)
Enable temperature monitoring through the NMI NMI

4. Exit the Option window.

5. If you selected Disabled in step 3, skip to step 7.

6. Specify a minimum (hysteresis) temperature value and a maximum tempera-

ture threshold in degrees C by selecting and adjusting the values of options
Min (C) and Max (C).

7. Exit the Option window.

8. Exit the Peripheral Setup window.

5.19 Updating the BIOS Flash

At some point, you might have a need to upgrade the system’s BIOS flash. This
section explains the update procedure.

To get the latest version of the BIOS flash upgrade files, send an electronic mail
request to:

[e-mail]

SMI

Note

Follow the steps f or updating the fla sh R OM carefully. If you do not c om­plete the pr ocedure c orr ectly, you can render the system unusa ble u ntil the
boot ROM or SBC is replaced.

To update the system’s Flash BIOS:

1. Copy the binary BIOS image to a diskette and rename the file AMI-

BOOT.ROM.

2. Insert the diskette into the diskette drive.

3. Power on the system.

4. Hold the Ctrl and Home keys down simultaneously immediately after power-

ing on the system (do not wait for video).
Hold the keys down until the diskette dr ive access light comes on. The

light indicates the update has started. The BIOS is automatically updated
within approximat ely three minutes. The diskette drive access light stays
lit and the video screen stays blank during the update.

5. Remove the diskette.

6. Re boot the system.

Configuring the System 5–33

7. Re configure the system.

a. St ar t WIN B IO S Se tup .
a. Load the optimal default configurati on.
b. Check the configuration settings. You may need to autodetect the hard disk

drives and set up any customized options.

c. Exit WINBIOS Setup.

5–34 Configuring the System

Upgrading and Replacing SBC Components

This chapter explains how to upgrade and repla ce SBC components. T opics
include:

• What You Need

• Taking Precautions During System Maintenance

• Removing and Installing the SBC

• Adjusting Jumpers for Front Access I/O

• Upgrading and Replacing Memory

• Replacing the Lithium Battery

6.1 What You Nee d

To complete the procedures explained in this chapter, you need:

• The parts being added or used for replacement

6

• Phillips screwdriver

• Antistatic wriststrap or isolation glo ves

6.2 Taking Precautions During System Maintenance

T o avoi d possi ble injury a nd damage t o the system, take appropr iate power supply
and antistatic preca utions before and while performing system maintenance pro­cedures. Section 6.2 .1 disc usses power supply precautions and Section 6.2.2 dis­cusses antistat ic precautions.

6.2.1 Taking Power Supply Precautions

Before removing any enclosure panels, CompactPCI modules, filler panels, or
removable bays or trays, take the fol lowing power supply precautions:

1. Power off external devices connected to the system .

2. Power off the system.

3. Unplug the power cord from the system’s AC power inlet.

After you complete the maintenance procedure, reverse these steps to restore
power .

6.2.2 Taking Antistatic Precautions

When handling circuit boards and associated internal computer components, use
an antistatic wriststrap or wear isolation gloves.

Upgrading and Replacing SBC Components 6–1

Caution

Circuit boards and associated system components are sensitive to and can
be damaged by elec trostatic discharge (ESD). To avoid damaging boards
or components, take appropri ate precautions when handling them.

Vorsicht!

_________________________________________________________

Gedruckte Schaltungen und dazu gehörende Systemkomponenten
reagieren empfindlich auf elektrostatische Entladung und können
durch elektrostatische Entladung sogar beschädigt werden. Treffen Sie
die erforderlichen Vorsichtsmaßnahmen, damit Schaltplatten oder
Systemkomponenten beim Ein- und Ausbau nicht beschädigt werden.
_________________________________________________________

In addition to using an antistatic wriststrap or wearing isolation gloves, consider
the following precautions:

• Do not allow a circuit board or other component to make contact with non-

conductors, including your clothing.

• Keep loose circuit boards inside or on top of conductive plastic bags.

• Before touching a loose circuit board or component, discharge static electric-

ity.

6.3 Removing and Installing the SBC

Before you remove or install the SBC, make sure you:

1. Power off external devices connected to the system .

2. Power off the system.

3. Unplug the power cord from the system’s AC power inlet.

Caution

T ake care when handling the SBC. Circuit boards are sensitive to and can
be damaged by electostatic discharge (ESD) . T o avoid damaging the SBC,
take appropriate prec autions when handling it.

6–2 Upgrading and Replacing SBC Components

_________________________________________________________

Seien Sie vorsichtig beim Umgang mit der SBC-Platine. Gedruckte

Schaltungen und dazu gehörende Systemkomponenten reagieren
empfindlich auf elektrostatische Entladung und können durch
elektrostatische Entladung sogar beschädigt werden. Treffen Sie die
erforderlichen Vorsichtsmaßnahmen, damit die SBC-Platine nicht
beschädigt wird.
_________________________________________________________

Sections 6.3.1 and 6.3.2 explain how to remov e and install the SBC.

6.3.1 Removing the SBC

To remove the SBC, complete the following steps. Refer to Figure 6–1 as neces­sary.

1. Loosen the two captive screws (1), behind the handles, which secure the mod-

ule to the chassis.

2. Simultaneously move the injector/ejector le vers (2) of the two handles to the

outward position.

Vorsicht!

3. Slide the module out of the chassis.

Figure 6–1 Removing the SBC

1

1

2

2

ML014307

Upgrading and Replacing SBC Components 6–3

6.3.2 Installing the SBC

T o install the SBC compl et e the following steps. Refer to Figure 6–2 as necessary.

1. Place the top and bottom edges of the module in the guides (1) of the chassis
for slot 1 (the system slot).

2. Check that the injector/ejecto r levers (2) of the two handles a re in t he outward
position.

3. Slide the module into the chassis until you feel resistanc e (approximately 1/4
inch short of full insert ion) .

4. Simultaneously move the injector/ejector le vers of the two handles to the
inward position.

5. Verify that the module is seated properly.

6. Tighten the two captive screws (3), behind the handles, which secure the
module to the chassis.

Figure 6–2 Installing the SBC

3

1

3

2

2

6.4 Adjusting Jumpers for Front Access I/O

By default, the DIGITAL 5/233i-8 CompactPCI system assumes rear access I/O.
If front access I/O is required or more appropriate for your application, you must
adjust the settings of Ethernet and unive rsal serial bus (USB) fr ont/rear I /O access
jumpers.

ML014317

To adjust the jumpers for rear access I/O:

1. Remove the SBC from the chassis as explain ed in Section 6.3.1.

2. Adjust the jumpers.

6–4 Upgrading and Replacing SBC Components

Figure 6–3 ide ntifi es the Eth ernet (1 ) and USB (2) front/rear I/O access jumper
blocks on the SBC. To adjust Ethernet access, you must set t he jumper for rear or
front access as shown in Figure 6–3. To adjust USB access, you must insta ll or
remove the jumper bl ock. When the jumper bl ock is ins talle d, the s ystem is se t up
for rear I/O acces s. For front USB access, remove the jumper block.

Figure 6–3 S etting Front/ Rear I/O Acces s Jumpe rs

Front

1
2
3

1

1
2

2

3

Rear

ML014373

3. Reinstall the SBC as explained in Section 6.3.2.

6.5 Upgrading and Replacing Memory

Before upgrading or replacing memory, make sure you are familiar with the sys-

tem’ s memory configurat ion requirements and opti ons. Section 2.2 discuss es valid
memory configurations.

T o upgrade memory or replace bad SIMMs, you need to install and remove
SIMMs as explained in Sections 6.5. 2 and 6.5.3.

Caution

Take care when handling SIMMs. Circuit boards are sensi tive to and can
be damaged by electostatic discharge (ESD). To avoid damaging the
memory modules, take appropriate precautions when handling them.

Upgrading and Replacing SBC Components 6–5

_________________________________________________________

Seien Sie vorsichtig beim Umgang mit SIMM-Modulen. Gedruckte
Schaltungen reagieren empfindlich auf elektrostatische Entladung und

können durch elektrostatische Entladung sogar beschädigt werden.
Treffen Sie die erforderlichen Vorsichtsmaßnahmen, damit die SIMM­Module nicht beschädigt werden
_________________________________________________________

6.5.1 Memory Configurations

The DIGITAL 5/233i CompactPCI SBC is shipped with at least 32 MB of
dynamic random access memory (DRAM) and supports memory configurations
that range from 32 to 256 MB of DRAM. This memory is accessible from the
CPU and PCI bus.

You can plug either two or four 36-bit 16, 32, or 64 MB SIMMs into the memory
connectors on the SBC. SIMMs must be 36 bits wide.

Figure 6–4 shows a typical pair of memory modules.

Vorsicht!

.

Figure 6–4 Pair of Memory Modules

ML014381

When installing memory, you must adhere to the following requirements:

• SIMMs must be installed in pairs. That is, you must populate the memory

banks with one of the following combinations:

– Two slots: slot 0 (J6) of bank 0 and slot 1 (J7) of bank 0
– Two slots: slot 0 (J8) of bank 1 and slot 1 (J9) of bank 1
– Four slots: slots 0 and 1 of banks 0 and 1

• SIMMs installed in a given memory bank must be of the same size. For

example, if you install a 64 MB SIMM in slot 0 of bank 0 you must install a
64 MB SIMM in slot 1 of bank 0.

• All SIMMs must be 60 ns extended data out (EDO) SIMMs.

6–6 Upgrading and Replacing SBC Components

T able 6–1 shows valid SIMM combinations.

Table 6–1 Valid SIMM Combinations

Total Mem ory

32 MB 16 MB 16 MB
64 MB 16 MB 16 MB 16 MB 16 MB
64 MB 32 MB 32 MB
96 MB 16 MB 16 MB 32 MB 32 MB
96 MB 32 MB 32 MB 16 MB 16 MB
128 MB 32 MB 32 MB 32 MB 32 MB
128 MB 64 MB 64 MB
160 MB 16 MB 16 MB 64 MB 64 MB
160 MB 64 MB 64 MB 16 MB 16 MB
192 MB 32 MB 32 MB 64 MB 64 MB
192 MB 64 MB 64 MB 32 MB 32 MB
256 MB 64 MB 64 MB 64 MB 64 MB

6.5.2 Installing SIMMs

T o install SIMMs on the SBC, complete the following ste ps. Refer to Figure 6–5,
as necessary.

Bank 0
Slot 0 (J6)

Bank 0
Slot 1 (J7)

Bank 1
Slot 0 (J8)

Bank 1
Slot 1 (J9)

1. Remove the SBC from the chassis as explain ed in Section 6.3.1.

2. Locate the memory connectors into which the SIMMs are to be installed.

Note

Because you install SIMMs at a 45-degree angle, it may be necessary to
remove existing SIMMs to install a new SIMM.

3. Align pin 1 of the SIMM with pin 1 on the connector. The position of the ori-

entation notches (1) on the SIMM assure proper con nectivity.

4. Install the SIMM into the connector at a 45- de gree angle (2). Rock the SIMM

gently until it seats evenly into the bottom of the connector.

5. Tip the SIMM upright until the retaining clips at the ends of the connector

engage (3).

6. Repeat steps 3 through 5 for other SIMMs being installed.

7. Reinstall the SBC as explained in Section 6.3.2.

8. Plug the power cord into the system’s AC power inlet a nd power on the sys-

tem and any external devices.

9. Reboot the system. After the system reboots, it recognizes the new memory.

Upgrading and Replacing SBC Components 6–7

Figure 6–5 Installing a SIMM

J9
J8
J7
J6

1

2

6.5.3 Removing SIMMS

T o remove SIMMs from the SBC, complete the following steps. Refer to Figure

6–6, as necessary.

1. Remove the SBC from the chassis as explain ed in Section 6.3.1.

2. Locate the SIMMs that you need to remove.

Because you remove SIMMs at a 45-de gree angle, it may be necessa ry to
remove multiple SIMMs to remove a specific SIMM of interest.

3. Apply pressure to the retaining clips (1) at the ends of the SIMM connector
until the clips disenga ge.

4. Tip the SIMM until it is at a 45-degree angle (2).

5. Rock the SIMM gently as you remove it from the connector.

6. Repeat steps 3 through 5 for other SIMMs being removed.

3

ML014382

Note

6–8 Upgrading and Replacing SBC Components

Figure 6–6 Rem o ving a SIM M

J9
J8
J7
J6

1

After you remove the SIMMs, install new SIMMs, if appropriate, as explained in
Section 6.5. If you are not installing new SIMMs, install the SBC as expla ined in
Section 6.3.2.

6.6 Replacing the Lithium Battery

The system lithium battery ru ns the syst em clock and retains configuration infor ­mation when the system is powered of f.

To replace the battery, complete the following steps. Refer to Figure 6–7, as nec­essary.

1. If the battery is not dead, use WINBIOS Setup to check and record the sys-

tem’s configuration settings.

2

1

ML014383

2. Power off external devices connected to the system .

3. Power off the system.

4. Unplug the power cord from the system’s AC power inlet.

5. Remove the SBC from the chassis as explain ed in Section 6.3.1.

6. Locate the battery on the SBC.

7. Carefully remove the old battery (1) from the battery connector (2).

8. Install the new battery such that the + side faces up.

Upgrading and Replacing SBC Components 6–9

Caution

The lithium battery can explo de if you insta ll it incorrectly. To prevent
damage to the system, be sure the + side faces up when you install the
new battery. Also, be sure you replace the battery with a CR2032 or
equivalent 3 V dc lithium batter y.

Depending on the locality, the system’s bat tery might be considered haz­ardous waste. Make sure you follow any state or local statute to properly
dispose of the old battery.

Vorsicht!

_________________________________________________________

Die Lithiumbatterie kann bei falschem Einbau explodieren. Um eine

Beschädigung des Systems zu vermeiden, sollte Sie sich vergewissern,
daß Sie die neue Batterie mit der + Seite nach oben eingelegt haben.
Vergewissern Sie sich außerdem, daß Sie die Batterie mit einer
CR2032 oder einer entsprechenden 3 V DC Lithiumbatterie
ausgetauscht haben.

Je nach Standort kann die Batterie des Systems als gefährlicher Abfall
angesehen werden. Entsorgen Sie die alte Batterie gemäß der
geltenden Umweltschutzvorschriften.

_________________________________________________________

_______________________________________________________

Mal installée, une batterie au lithium présente des risques
d'explosion. Pour éviter d'endommager votre système, vérifiez que le
côté positif (+) soit face vers le haut lorsque vous installez une
nouvelle batterie. En outre, n'installez que des batteries au lithium
3V DC type CR2032 ou équivalent.

Il est possible que la législation en vigueur interdise de jeter les
batteries. Renseignez-vous sur cette législation et appliquez-là à vos
vieilles batteries.

_______________________________________________________

9. Reinstall the SBC as explained in Section 6.3.2.

6–10 Upgrading and Replacing SBC Components

Avertissement

10. Plug the power cord into the system’s AC power inlet.

11. Power on external devices connected to the system.

12. Power on the system.

13. If you were able to record the system’s configuration settings in step 1 or if

you kept a record of the settings, run WINBIOS Setup to reconfigure the sys­tem with the previous settings. If you do not have a record of the previous set­tings, load the default optimal BIOS settings as explained in Section 5.2 .8

Figure 6–7 Installing the System Battery Clock

1

2

ML014375

Upgrading and Replacing SBC Components 6–11

7

Connectors and Headers

This chapter describes the DIGITAL 5/233i CompactPCI single-board computer
(SBC) connectors and headers. Topics include:

• J4 CompactPCI I/O Connector

• J5 CompactPCI I/O Connector

• Parallel Port Connector and Header

• PS/2 Keyboard/Mouse Connector

• Serial Port Connectors

• Universal Serial Bus Port Connectors

• Ethernet Connectors

• SCSI Connectors

• Video Connectors

• SIMM Connectors

7.1 Connectors and Headers

The SBC and rear transition module provide several connectors and headers for
attaching devices . Connectors are located on the module front panels. Headers are
mounted on the module circuit board s.

To reduce the risk of personal injury, always power off the system and
unplug the power cord before connecting peripherals to the SBC or rear
transition module.

_________________________________________________________

Schalten Sie immer das System aus und ziehen Sie das Netzkabel aus

der Steckdose, bevor Sie Peripheriegeräte an den
Zentralprozessor(SBC) oder das hintere Übergangsmodul anschließen.
_________________________________________________________

Warning

ACHTUNG!

Connectors and Header s 7–1

7.2 J4 CompactPCI I/O Connector

The J4 CompactPCI I/O c onnector handle s signals for the p rimary EIDE, disket te,

SCSI, video, and Ethernet devic es. Figur e 7–1 shows the pin layout for the J4 con­nector as seen from the rear of the SBC. Table 7–1 lists the connector pin assign­ments. Table 7–2 defines the signals associated with the pins.

An asterisk (*) in a signal name indicates that the signal is active low.

Figure 7–1 J4 Con nec tor Pin La you t

Note

J5

J4

J2

J1

25

Key

F

EDCBAZ

1

ML014489

Table 7–1 J4 Connector Pin Assignments

Row F E D C B A Z

25 GND VCC NC NC NC NC GND
24 GND BTI* GND DASP* CS3FX* CS1FX* GND
23 GND DA2 DA0 GND DA1 IOCS16* GND
22 GND INTRQ DMAK* NC IORDY GND GND
21 GND DIOR* GND DIOW* GND DMARQ GND
20 GND PDIAG* GND bDD15 bDD0 bDD14 GND
19 GND bDD1 bDD13 bDD2 bDD12 bDD3 GND
18 GND bDD11 bDD4 bDD10 bDD5 bDD9 GND

7–2 Connectors and Headers

Table 7–1 J4 Connector Pin Assignments (Continued)

Row F E D C B A Z

17 GND bDD6 bDD8 bDD7 GND DRESET* GND
16 GND GND RD* RD TD* TD GND
15 GND LED1_2 LED3 VCC VCC GND GND
Key
11 GND GND GND NC DACVSS BLUE GND
10 GND GREEN RED FVSYNC FHSYNC MID3 GND
9 GND MID2 MID1 MID0 GND GND GND
8 GND SCD12 SCD13 SCD14 SCD15 SCDPH-2 GND
7 GND SCD0 SCD1 SCD2 SCD3 SCD4 GND
6 GND SCD SCD6 SCD7 SCDPL-2 GND GND
5 GND GND VCC VCC GND GND GND
4 GND ATN-2 GND BSY-2 SACK-2 SRST-2 GND
3 GND MSG-2 SEL-2 CD-2 SREQ-2 IO-2 GND
2 GND SCD8 SCD9 SCD10 SCD11 PBYPASS GND
1 GND FAN3 FAN2 INTRUDER* SSDA SSL GND

Table 7–2 J4 Connector Signal Definitions

Signal Definition
General

GND To SBC ground plane
NC No connection
VCC S BC +5 V power

EIDE (ATA–2), TTL Levels

BTI* Board temperature interrupt — input connected to the

LM78 system monitor chip that can be driven by an

LM75 temp erature sensor ch ip
CS1FX* Chip select drive 0 and command register block select
CS3FX* Chip select drive 1 and command register block select
DA<2:0> Drive register and data port address lines
DAS P* Driv e ac ti ve/sla v e present
DD<15:0> Drive data lines, bits 15 to 0
DIOR* Drive I/O read
DIOW* Drive I/O write
DMAK* Drive DMA acknowledge

Connectors and Header s 7–3

Table 7–2 J4 Connector Signal Definitions (Continued)

Signal Definition

DMARQ Drive DMA request
DRESET* Reset signal to drive
INTRQ Drive interrupt request
IOCS16* Indicates a 16-bit register has been decoded
IORDY Indicates drive is ready for I/O cycles
PDIAG Output generated from drive 1 and moni tored by drive 0

Ethernet

LED1_2 Tran smit
LED3 Link
RD* Receive lines
TD* Transmit lines

SCSI

SCD<15:0> Data lines
ATN-2 Driven as an ind i cator when a s p ecial condition occurs
BSY-2 Driven by the initiator as a hand-shake during arbitr ation
CD-2 Indicates the command or mess ag e phase whe n asserted

and the data phase when deasserted

IO-2 Indicates the “in” direction when asserted and the “out”

direction when deasserted

MSG-2 Indicates the message phase when asserted and the com-

mand or data phase when deasserted

SACK-2 An initiator will assert ACK to indicate a byte is ready

for or was received from the target
SCDPH-2 Provides odd parity for data lines 2SCD<15:8>
SCDPL-2 Provid es odd parity for data lines 2SCD<7:0>
SEL-2 Drive after a successful arbitration to select as an initia-

tor or res elect as a targ et
SREQ-2 A target will assert REQ to indicate a byte is ready or is

needed by th e target
SRST-2 Int erpreted as a hard reset

Video

BLUE Blue signal
DACVSS Shielded ground wire
FHSYNC Horizontal synchronization pulse
FVSYNC Vertical synchroniza tion pulse
GREEN Green signal

7–4 Connectors and Headers

Table 7–2 J4 Connector Signal Definitions (Continued)

Signal Definition

MID<3:0> Bidirectional out put that reflects the addres s into the pal-

RED Red signal

Miscellaneous

PBYPASS* LM78 output from the SBC tha t ca n be us ed, under soft-

FAN3 Tachometer for fan 2 rotational speed input to the SBC
FAN2 Tachometer for fan 3 rotational speed input to the SBC
INTRUDER* Battery backed signal that can be asserted by a n external

SSDA LM78 system monitor I2C serial bus data
SSCL LM78 system monitor I2C serial bus clock

7.3 J5 CompactPCI I/O Connector

The J5 CompactPCI I/O connector handles signals for the serial ports, parallel
port, keyboard and mouse, univer sa l serial bus (USB) ports, and secondary EIDE

devices. Figure 7–2 shows the pin layout for the J5 connector as seen from the
rear of the SBC. Table 7–3 lists the connector pin assignments. Table 7–4 defines
the signals associate d with the pins.

ette DAC or input that can be used to dr ive pixel values
into the palette DAC

ware control, for power supply bypass control, fan con­trol, or general purpose output

monitoring d ev i ce wh en en cl o su r e s ec u ri t y is br ea ch ed

Note

An asterisk (*) in a signal name indicates that the signal is active low.

Connectors and Header s 7–5

Figure 7–2 J5 Con nec tor Pin La you t

EDCBAZ

F

22

J5

J4

1

J2

J1

ML014490

Table 7–3 J5 Connector Pin Assignments

Row F E D C B A Z

22 GND SPKR*OC VCC DIAG*OC GND PBRESET* GND
21 GND AUXCLK AUXDAT VCC
20 GND GND

1

19 GND UDATA0- UDATA0+ VCC
18 GND VCC

1

GND

1

1

1

KBDCLK KBDDAT GND

1

GND

VCC

1

STB* GND

GND

UDATA1- UDATA1+ AFD* GND
17 GND PD0 ERR* PD1 INIT* PD2 GND
16 GND SLIN* PD3 PD4 PD5 PD6 GND
15 GND PD7 ACK* BUSY PE SLCT GND
14 GND DTRa GND RIa CTSa RTS a GND
13 GND TXDa DSRa RXDa VCC DCDa GND
12 GND DTRb VCC RIb CTSb RTSb GND
11 GND TSCb DSRb RXDb GND DCDb GND
10 GND DSKCHG* HDSEL* RDATA* WPROT* TR0* GND
9 GND WGATE* WDATA* STEP* DIR* MTR1* GND
8 GND DS0* DS1* MTR0* INDEX* DRVDENS1 GND

7–6 Connectors and Headers

Table 7–3 J5 Connector Pin Assignments (Continued)

Row F E D C B A Z

7 GND DRVDENS0 DASP* DA1 CS3FX* CS1FX* GND
6 GND DA2 DA0 PDIAG* GND IOCS16* GND
5 GND DIOR* DMACK* DIOW* IORDY DMARQ GND
4 GND INTRQ DD15 GND DD0 DD14 GND
3 GND DD1 DD13 DD2 DD12 DD3 GND
2 GND DD11 DD4 DD10 DD5 DD9 GND
1 GND DD6 DD8 DD7 DRESET* R E SET* GND

1

You can limit the current or do EMI filtering on these lines for direct cabling purposes.

Table 7–4 J5 Connector Signal Definitions

Signal Definition
General

GND To ground plane
VCC +5 V power supply

Diskette D rive, TTL Levels

DSKCHG* Indicates the drive door is open
DIR* Controls the direction of the head during step ope ra-

tions
DR VDENS<1:0> Disk density select communication
DS<1:0>* Drive selects
HDSEL* Selects the top or bottom side head
INDEX* Indicates th e beginning of a track
MTR<1:0>* Motor enable
RDATA* Read dat a fr o m the drive
STEP* Step - pulses move the head in or out
TR0* Indicates that the hea d is positioned above track 00
WDATA* Write data to the drive
WGATE* Enable s th e h ea d w r it e circui tr y of th e d r iv e
WPROT* Indicate s a diskette is w rite prot ected

EIDE (ATA-2), TTL Levels

CS1FX* Chip select drive 0 and command register block

select
CS3FX* Chip select drive 1 and command register block

select
DA<2:0> Drive register and data port address lines

Connectors and Header s 7–7

Table 7–4 J5 Connector Signal Definitions (Continued)

Signal Definition

DAS P* Driv e ac ti ve /slave present
DD<15:0> Drive data lines for bits 15 to 0
DIOR* Drive I/O read
DIOW* Drive I/O write
DMACK* Drive DMA acknowledge
DMARQ Drive DMA request
DRESET* Reset signal to drive
INTRQ Drive interrupt request
IOCS16* Indicates a 16-bit register has been decode d
IORDY Indicates drive is ready for I/O cycles
PDIAG Output generated from drive 1 and monitored by

drive 0

Keyboard/Mouse, TTL Levels

AUXCLK Clock for the PS/2 auxilary device (mouse)
AUXDAT Serial data line for the mouse
KBDCLK Clock for the PC/AT or PS/2 keyboard
KBDDAT Serial data line for the PC/AT or PS/2 keyboard

Parallel Port

ACK* Pulsed by the pe riphera l devic e to ac knowledg e data

was sent
AFD* Causes the pri n ter to generate a line feed
BUSY Indicates that th e printer cannot accept more data
ERR* T he peripheral device detected an error
INIT* Initia lizes the printer
PD<7:0> Parallel port data lines, bits 7 to 0
PE Indicates the printer is out of paper
SLCT The peripheral device indicates that it is selected
SLIN * Se l ects the pr in t e r
STB* Indicates data is valid

Serial Ports (a/b), RS232 Levels

CTSa/CTSb Clear to send
DCDa/DCDb Data carrier detected
DSRa/DSR b Data set ready
DTRa/DTRb Data terminal ready
RIa/RIb Ring indicator

7–8 Connectors and Headers

Table 7–4 J5 Connector Signal Definitions (Continued)

Signal Definition

RTSa/RTSb Request to send
RXDa/RXDb Serial receive data
TXD a/ T X Db Serial tr ansmit data

USB Ports (0/1), USB Levels

UDATA0+/UDATA1+ P lus (+) signal of differential data pair for the USB

channel

UDA TA0–/UDA T A0– Minus (–) signal of diffe rential data pai r for the USB

channel

Miscellan eous

DIAG*OC Diagnostic and alarm output, open collector output
PBRESET* Pushbutton system reset input (pulled up, filtered,

and debounced on the host card)
RESET* System reset output, TTL totem - pole
SPKR*OC PC/AT speaker output, open collector output

7.4 Parallel Port Connector and Header

The parallel port is normally used for connecting a printer to the system. On the
front panel of the SBC, this port is a 25-pin micro -D connector (J22).

Figure 7–3 shows the pin layout for the parallel port connector. Table 7–5 lists the
connector pin assignments. T a ble 7–6 defines the signals associated with the pins.

Note

An asterisk (*) in a signal name indicates that the signal is active low.

Figure 7–3 Paral le l Port C onn ec tor Pin Layout

25

14

13

1

ML014498

Connectors and Header s 7–9

Table 7–5 Paral lel Port Connect or Pin Assignments

Signal I/O Direction Pin Pin I/O Direction Signal

13 Input SLCT
GND 25 12 Input PE
GND 24 11 Input BUSY*
GND 23 10 Input ACK*
GND 22 9 Input/Output D7
GND 21 8 Input/Output D6
GND 20 7 Input/Output D5
GND 19 6 Input/Output D4
GND 18 5 Input/Output D3
SLIN* Output 17 4 Input/Output D2
INIT* Output 16 3 Input/Output D1
ERR* Input 15 2 Input/Output D0
AFD* Output 14 1 Output STB*

Table 7–6 Parallel Port Connector Signal Definitions

Signal Definition

ACK* Input is pulsed by the peripheral device to acknowl-

edge data re tr ieval
AFD * Causes th e printe r to a d d a li n e fe ed
BUSY* Indicates that the printer cannot acce pt any more

data
ERR* Set low when an error is detected
GND Ground
INIT* Initia lizes the printer
PD<7:0> Parallel port data lines, bits 7 to 0
PE Indicates that th e printer is out of paper
SLCT Set high when selected
SLIN * Se l ects the pr in t e r
STB* Indicates that data at the parallel port is valid

7–10 Connectors and Headers

7.5 PS/2 Keyboard/Mouse Connector

6

4

2

1

3

5

ML013553

A 6-pin PS/2 keyboard/mouse connector (J 15) is on the front panel of the SBC .

Figure 7–4 shows the pin layout for the PS/2 keyboard/mouse connecto r. Table 7–
7 lists the connector pin assignments for the SBC’s keyboard/mouse combination
connector. Table 7–8 defines the signals ass ociated with the pins.

Notes

An asterisk (*) in a signal name indicates that the signal is active low.

Figure 7–4 P S/2 Keyb oard /Mo use Con nec tor Pin Layou t

Table 7–7 PS /2 Keyboa rd/M ouse Co m bination Connector Pin Assignments

Pin Signal

1 KBDDAT*
2MDAT*
3 GND
4 VCC (+5 V)
5 KBDCLK*
6MCLK*

Note

Power present on a keyboard/mouse connector is only for use by the key­board or mouse.

Table 7–8 P S /2 Keyboard/Mous e C o nnector Signa l Def in iti ons

Signal Definition

GND Ground
KBDCLK Keyboard clock
KBDDAT Keyboard data

Connectors and Header s 7–11

Table 7–8 P S /2 Keyboard/Mous e C o nnector Signa l Def in iti ons

Signal Definition

VCC (+5 V) Keyboard or mouse power
MCLK Mouse cl ock
MDAT Mouse data

Power present on the keyboard/mouse connector is only for use by the
keyboard or mouse.

7.6 Serial Port Connectors

The serial ports are used for connecting serial devices, such as a serial mouse or
serial printer, to the system. Serial por ts are also known as COM or Universal
Asynchronous Receiver/Transmitter (UART) ports. On the front panel of the
SBC, the serial ports are 9-pin micro D connectors.

Figure 7–5 shows the pin layout for the serial port connectors. Table 7–9 lists the
connector pin assignments. Table 7–10 defines the signals associated with the
pins.

Note

Note

An asterisk (*) in a signal name indicates that the signal is active low.

Figure 7–5 Serial Port Connector Pin Layou t

1

6

2

7

3

8

4

9

5

ML014499

Table 7–9 Serial Port Connector Pin Assignments

Signal Pin Pin Signal

1DCD
DRS 6 2 RXD
RTS 7 3 TXD
CTS 8 4 DTR
RI 9 5 GND

7–12 Connectors and Headers

Table 7–10 Serial Port Connector Signal Definitions

Signal Definition

CTS Indicates that the data set is ready to accept data
DCD Indicates that the data set has detected the data car-

rier

DSR I ndicates tha t the data se t is r ea dy to esta b l ish a

communications link

DTR Indicates that the data term inal equipment (DTE), is

ready to accept a communications link
GND Ground
RI Indicates that the modem has received a telephone

ringing signal
RTS Indicates to the data set that the DTE is ready to

send data
RXD Receives serial data from the communications link
TXD Sends serial data to the communications link

7.7 Univers al Ser ial B us Po rt Conn ec to rs

Two universal serial bus (USB) port connectors (J18) reside on the front panel of
the SBC. The USB jumper on the SBC enables the front a ccess connectors on the
SBC or the rear access connectors on a rear transition module (see Section 2.2).
The factory setting is for rear acc ess connectors. To use front access connectors,
you must remove the jumper as explained in Section 6.4.

Note

Be sure to plug the USB cables into the USB connectors that are enabl ed.

Figure 7–6 shows the pin layout f or the USB connec tors. Table 7–11 lists the con­nector pin assignments. Table 7–12 defines the signals associated with the pins.

Note

An asterisk (*) in a signal name indicates that the signal is active low.

Connectors and Header s 7–13

Figure 7–6 USB Po rt Connector Pin Lay o ut

ML014542

1

2

1234

1234

Table 7–11 USB Port Connector Pin Assignm ents

Pin Signal

4 GND
3 USBP2/USBP1
2 USBP2*/USBP1*
1 VCC (+5 V)

7–14 Connectors and Headers