Intel SBC-455 User Manual

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SBC-455

Half-size 486 CPU Card with Flat Panel/CRT SVGA Interface

FCC STATEMENT

THIS DEVICE COMPLIES WITH PART 15 FCC RULES. OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDITIONS: (1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE. (2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED INCLUDING INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION.

THIS EQUIPMENT HAS BEEN TESTED AND FOUND 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 PROTECTION AGAINTST HARMFUL INTERFERENCE WHEN THE EQUIPMENT IS OPERATED IN A COMMERCIAL ENVIRONMENT.

THIS EQUIPMENT GENERATES, USES, AND CAN RADIATE RADIO FREQENCY ENERGY AND , IF NOT INSTATLLED AND USED IN ACCORDANCE WITH THE INSTRUCTION MANUAL, MAY CAUSE HARMFUL INTERFERENCE TO RADIO COMMUNICATIONS. OPERATION OF THIS EQUIPMENT IN A RESIDENTIAL AREA IS LIKELY TO CAUSE HARMFUL INTERFERENCE IN WHICH CASE THE USER WILL BE REQUIRED TO CORRECT THE INTERFERENCE AT HIS OWN EXPENSE.

Copyright Notice

This document is copyrighted, 1995, 1996, by AAEON Technology Inc. All rights are reserved. AAEON Technology Inc. reserves the right to make improvements to the products described in this manual at any time without notice.

No part of this manual may be reproduced, copied, translated or transmitted in any form or by any means without the prior written permission of AAEON Technology Inc. Information provided in this manual is intended to be accurate and reliable. However, AAEON Technology Inc. assumes no responsibility for its use, nor for any infringements upon the rights of third parties which may result from its use.

Acknowledgements

ALI is a trademark of Acer Laboratories, Inc.

AMD is a trademark of Advanced Micro Devices, Inc. AMI is a trademark of American Megatrends, Inc. AutoCAD and AutoShade are trademarks of Autodesk, Inc.

CHIPS Logotype is a registered trademark; Chips 65545 is a trademark of Chip and Technologies, Inc.

Cyrix is a trademark of Cyrix Corporation.

IBM, PC/AT, PS/2 and VGA are trademarks of International Business Machines Corporation.

Intel and Pentium are trademarks of Intel Corporation.

Lotus, 1-2-3 an Symphony are trademarks of Lotus Development Corp.

Microsoft Windows® , MS-DOS, Corporation Windows and Microsoft are registered trademarks of Microsoft Corp. SMC is a trademark of Standard Microsystems Corporation. TurboDLD Classic is a trademark of Panacea Inc.

UMC is a trademark of United Microelectronics Corporation. WordPerfect is a trademark of WordPerfect Corporation. VESA® is a registered trademark of Video Electronics Standards Association.

All other product names or trademarks are properties of their respective owners.

Part No. 2006455023 SBC-455 B1 4th Edition

Printed in Taiwan July 1997

Packing list

Before you begin installing your card, please make sure that the following materials have been shipped:

1 SBC-455 CPU card

1 6-pin mini-DIN dual outlet adapter for keyboard and PS/2 mouse

1 Hard disk drive (IDE) interface cable (40 pin)

1 Floppy disk drive interface cable (34 pin)

1 Parallel port adapter (26 pin) and COM2 adapter (9 pin) kit

5 Utility disks with CHIPS 65545/48 utility programs and drivers

PC/104 Expansion connector converter (pin headers)

PC/104 Module mounting supports

If any of these items are missing or damaged, contact your distributor or sales representative immediately.

Contents

 

Chapter 1: General Information ..................................................

1

Introduction ...........................................................................

2

Features ..................................................................................

3

Specifications .........................................................................

4

Board layout ...........................................................................

6

Card dimensions ....................................................................

7

Chapter 2: Installation ..................................................................

9

Jumpers and connectors ....................................................

10

Locating jumpers and connectors ....................................

11

Setting jumpers ...................................................................

12

Safety precautions ...............................................................

13

Installing the CPU ...............................................................

13

Removing a CPU ....................................................................

13

Installing a CPU ......................................................................

14

CPU type select (JP1, JP3, JP4) ............................................

15

CPU Vcc select (JP2) ............................................................

16

CPU clock select (JP9, JP10) .................................................

16

Installing DRAM (SIMMs) ...............................................

17

Installing SIMMs .....................................................................

17

Removing SIMMs ...................................................................

17

IDE hard drive connections (IDE) ...................................

18

Connecting the hard drive .......................................................

18

IDE LED (IDE LED) .............................................................

19

Floppy drive connections (FLOPPY DISK) ....................

20

Connecting the floppy drive .....................................................

20

Parallel port (PRINTER) ...................................................

21

Installing the retaining bracket .................................................

21

Parallel port DRQ and DACK (JP11) ....................................

22

Power supply connections (POWER CON) ....................

22

Power supply connector ..........................................................

22

Display connections (VGA, LCD) .....................................

23

LCD signal select (JP5, JP7) ............................................

24

Keyboard and PS/2 KB/ mouse connections

 

(KB CON, KB/PS2 MOUSE) ...........................................

25

Serial ports ...........................................................................

26

RS-232 connections (COM A, COM B) ................................

26

Serial ports IRQ select (JP11) .................................................

27

Watchdog timer setup .........................................................

28

Watchdog timer time-out signal select (JP6) ...........................

28

Watchdog timer programming .................................................

28

External switches and LEDs .............................................

30

Power LED and keylock (KEY LOCK) ................................

30

External speaker (EXT SPK) .................................................

30

Reset switch (RESET SW) .....................................................

31

Turbo LED (TURBO LED) ....................................................

31

SMI (System Management Interrupt) switch (SMI SW) .......

32

Turbo Switch (TURBO SW) ..................................................

32

Clear CMOS (JP12) ................................................................

32

Flash BIOS Protect (JP8) .......................................................

33

Flash BIOS Write-enable Voltage (JP13) ...............................

33

Chapter 3: AMI WinBIOS Setup .................................................

35

General information ............................................................

36

Starting WinBIOS setup ..........................................................

36

WinBIOS main menu ..............................................................

36

Using a mouse with WinBIOS setup .......................................

37

Using the keyboard with WinBIOS setup ...............................

37

Setup .....................................................................................

38

Standard Setup ........................................................................

38

Advanced Setup ......................................................................

40

Chipset Setup ..........................................................................

46

Power Management Setup ......................................................

48

PCI/PnP Setup ........................................................................

49

Peripheral Setup ......................................................................

53

Utility .....................................................................................

56

Security .................................................................................

5 7

Setting a Password ..................................................................

58

Anti-virus .................................................................................

59

Default ...................................................................................

6 0

Original ....................................................................................

60

Optimal ....................................................................................

60

Fail-Safe ..................................................................................

60

Exiting WinBIOS ................................................................

61

Chpater 4: Flat Panel/CRT Controller Display Drivers and

 

Utilities ...............................................................

63

Software drivers ..................................................................

64

Hardware configuration ..........................................................

64

Necessary prerequisites ..........................................................

65

Before you begin .....................................................................

65

WindowsÔ 95 .........................................................................

66

WindowsÔ 3.1 ........................................................................

67

DOS ........................................................................................

68

OS/2 ........................................................................................

69

WindowsÔ NT3.51 ................................................................

72

Windows NT4.0 ......................................................................

73

Software utilities ..................................................................

74

The CHIPSDSP utility program ..............................................

74

The CHIPSCPL utility program ..............................................

76

Appendix A: Watchdog Timer Demo Program .......

79

Appendix B: Installing PC/104 Modules .................

83

Appendix C: LCD Display BIOS Configuration .....

87

R1

ET

PA

HC

General

Information

This chapter provides background information for the SBC-455.

Sections include:

Card specifications

Board layout

Chapter 1 General Information 1

Introduction

The SBC-455 is an all-in-one single board 486 computer with an onboard flat panel/CRT SVGA controller. It packs all the functions of an industrial computer and its display capabilities onto a single, halfsize card. This means the SBC-455 is your absolute best solution for embedded applications.

The on-board PCI-bus, flat panel/CRT SVGA controller uses the CHIPS 65548 chipset with up to 1 MB of video memory. This chipset, used with the local PCI-bus, enables 32-bit graphic throughput at up to 33 MHz. Excellent for display-intensive applications, it supports various LCD types including TFT, STN, B/W, and EL.

Another feature of the SBC-455 is the inclusion of a high speed, local bus IDE controller. This controller supports (through ATA PIO) mode 3 and mode 4 hard disks, enabling data transfer rates in excess of 11 MB/second. Up to four IDE devices can be connected, including large hard disks, CD-ROM drives, tape backup drives, or other IDE devices. The built-in, enhanced IDE controller provides a 4-layer, 32bit, posted write buffer and a 4-layer, 32-bit read-prefetch buffer to accomplish IDE boost performance improvements.

On-board features include two high speed RS-232 serial ports with 16C550 UARTs, one bidirectional SPP/EPP/ECP parallel port and a floppy drive controller. In addition to the 486's 16 KB of on-chip cache memory, the SBC-455 includes an extra 128 KB of second level on-board cache memory.

If program execution is halted by a program bug or EMI, the board's 16-stage watchdog timer can automatically reset the CPU or generate an interrupt. This ensures reliability in unmanned or standalone systems.

The SBC-455 supports 5 V EDO DRAM. It also provides two 72-pin SIMM (Single In-line Memory Module) sockets for its on-board system DRAM. These sockets give you the flexibility to configure your system from 1 MB to 64 MB of DRAM using the most economical combination of SIMMs.

2 SBC-455 User's Manual

Features

Accepts Intel, AMD, Cyrix or other compatible 486 processors, including the P24T Pentium OverDrive

Half-size PC/AT-compatible ISA-bus CPU card

AMI Flash BIOS

Daughterboard available for various flat panel displays

On-board 32-bit PCI-bus, flat panel/CRT SVGA controller

Built-in PCI Enhanced IDE controller, supports two IDE devices (large hard disks, CD-ROM, tape backup, etc.)

Up to 64 MB on-board DRAM

Supports 5 V EDO DRAM

Two high speed serial RS-232 ports (16C550 UARTs with 16-byte FIFO). IRQ 3, 4 or IRQ 10, 11 can be individually selected

One enhanced bidirectional parallel port. Supports SPP/EPP/ECP

Watchdog timer (15 steps, 2 seconds per step)

On-board keyboard and PS/2 mouse connector

Connectors for PC/104 module expansion

"Green" function supports power management

Clear CMOS function

Chapter 1 General Information 3

Specifications

CPU: 80486SX/DX/DX2/DX4 25/33/40/50/66/75/100/120 MHz, 5x86-100/120/ 133 or Pentium OverDrive processor

Bus interface: ISA bus

Data bus: 32-bit

Processing ability: 32-bit

Chipset: ALI/1489/1487

RAM memory: 1 MB to 64 MB. Uses two 72-pin SIMM sockets

L2 Cache memory size: 128/256/512 KB 2nd level cache memory

Shadow RAM memory: Supports system and video BIOS shadow memory

Flat panel/CRT SVGA controller: SVGA, PCI-bus, CHIPS 65548 chipset with 512 KB standard video memory, upgradable to 1 MB. Provides 32-bit graphic throughput. Features the ability to control most TFT, STN, B/W, EL flat panel displays as well as standard CRT. Supports resolutions up to 1024 x 768 in 256 colors. Daughterboards available for various flat panel displays.

Enhanced IDE hard disk drive interface: Fast PCI bus. Supports up to two Enhanced IDE (ATA-2) large hard disk drives or other Enhanced IDE devices. Supports mode 3 and mode 4 hard disks (data transfer rate 11.1 MB/ sec. minimum)

Floppy disk drive interface: Supports up to two floppy disk drives, 5 1/ 4"¼" (360 KB and 1.2 MB) and/or 3 1/2" (720 KB, 1.44 and 2.88 MB)

Bidirectional parallel port: Configurable to LPT1, LPT2, LPT3 or disabled Supports SPP/EPP/ECP standards

Serial ports: Two serial RS-232 ports, uses 16C550 UARTs with 16-byte FIFO buffer. Supports speeds up to 115 Kbps. Ports can be individually configured from COM1 to COM4 or disabled.

BIOS: AMI Flash WIN BIOS

Watchdog timer: Can generate a system reset or IRQ15. The time interval is software selectable from 2 to 32 seconds (15 steps, 2 seconds per step).

PC/104: 104-pin connector for a 16-bit bus

DMA channels: 7

4 SBC-455 User's Manual

Interrupt levels: 15

Keyboard/ PS/2 mouse connector: A 6-pin mini DIN keyboard connector is located on the mounting bracket for easy access to a keyboard and a PS/2 mouse

Bus speed: 8 MHz

System performance: 325 MHz in 80486 DX4-100 (Landmark V2.0)

Max. power requirements: +5 V @ 2.5 A

Power supply voltage: +5 V (4.75 V to 5.25 V), +12 V, -12 V; for DX4100/120 and P24T CPUs, a cooler is necessary

Operating temperature: 32 to 140° F (0 to 60° C)

Board size: 7.3" (L) x 4.8" (W) (185 mm x 122 mm)

Board weight: 0.6 lbs (0.26 Kg)

Chapter 1 General Information 5

Board layout

 

 

M48T86PCI

A - K B

 

 

ST

M EG

 

 

 

 

 

S M C

 

 

FDC37C665

 

 

 

ILA 7 8 4 1 M

 

 

24MHz

BIOS

 

 

6 V 8

 

 

AMI

 

 

1

 

 

 

 

C H I P S FS65545 B2

 

 

TC5142560BJ-70

 

 

 

 

14.318

 

 

 

SC464

 

 

 

IMI

 

 

 

ALI M 1 4 8 9

B1

SBC-455486SX/DX/DX2/DX4CPUCARDWITHCACHEREV.

6 SBC-455 User's Manual

Card dimensions

 

 

 

26.00

 

 

 

73.66

 

185.00

178.00

 

 

 

00.19

 

65.80

 

 

50.98

50.19

 

B1

SBC-455486SX/DX/DX2/DX4CPUCARDWITHCACHEREV.

 

 

 

00.122

Chapter 1 General Information 7

8 SBC-455 User's Manual

C H A P T E R

2

Installation

This chapter explains set up procedures for the SBC-455 hardware, including instructions on setting jumpers and connecting peripherals, switches and indicators. Be sure to read all safety precautions before you begin the installation procedure.

Chapter 2 Installation 9

Jumpers and connectors

Connectors on the board link it to external devices such as hard disk drives, a keyboard, or floppy drives. In addition, the board has a number of jumpers that allow you to configure your system to suit your application.

The table below lists the function of each of the board jumpers and connectors:

Jumpers and connectors

Label

Function

JP2

CPU voltage select

 

 

JP1,3,4

CPU type select

 

 

JP11

COM port IRQ and Parallel port DRQ/DACK

 

select

 

 

JP5

LCD clock signal select

 

 

JP7

LCD enabled signal select

 

 

JP6

Watchdog out select

JP9, 10

CPU clock select

 

 

JP12

Clear CMOS

 

 

JP8

Flash BIOS Protect

 

 

JP13

Flash BIOS Write-enable Voltage

Primary IDE

Enhanced IDE connector

 

 

Floppy disk

FDD connector

 

 

Printer

Parallel port connector

 

 

LCD

LCD panel connector

COM B

Serial port 2

 

 

RESET SW

Reset Switch

 

 

EXT SPK

Ext. speaker

 

 

KEY LOCK

Power LED and KB lock

 

 

TURBO SW

Turbo Switch

 

 

SMI SW

SMI Switch

 

 

POWER CON

Power connector

IDE LED

IDE LED

 

 

TURBO LED

Turbo LED

 

 

COM A

Serial port 1

 

 

VGA

VGA connector

KB CON

External keyboard connector

 

 

KB/PS2 MOUSE

Keyboard or PS/2 mouse connector

 

 

J1,2

PC/104 module connector

 

 

SIMM1,2

DRAM module socket

10 SBC-455 User's Manual

Locating jumpers and connectors

POWER CON

 

COM1

 

 

VGA

KB/PS2

 

 

 

MOUSE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SMI SW

 

 

 

TURBO SW

 

 

 

JP12

M48T86PCI

K B

KB CON

KEY LOCK

G A -

ST

 

EXT SPK

M E

 

 

 

JP11

 

 

 

PRINTER

 

S M C

 

 

 

 

 

PC/104

COM2

FDC37C665

ILA 7841M

 

 

MODULE

 

 

 

 

 

 

 

LCD

 

 

 

CONNECTOR

JP8

24MHz

BIOS

 

 

 

 

 

 

6 V 8

 

 

JP7

AMI

 

 

1

 

 

 

JP13

S B2

 

JP5

HCI P FS65545

 

JP6

 

 

FLOPPY DISK

TC5142560BJ-70

 

 

 

14.318

 

SC464

 

 

IMI

JP 9, 10

 

 

CPU TYPE

 

 

CPU Vcc

 

 

Primary IDE

LAI 1M4 8 9

 

 

 

IDE LED

 

 

TURBO LED

 

 

RESET SW

 

 

B1

SBC-455486SX/DX/DX2/DX4CPUCARDWITHCACHEREV.

 

 

SIMM SOCKETS

 

Chapter 2 Installation 11

Setting jumpers

You configure your card to match the needs of your application by setting jumpers. A jumper is the simplest kind of electric switch. It consists of two metal pins and a small metal clip (often protected by a plastic cover) that slides over the pins to connect them. To close a jumper you connect the pins with the clip. To "open" a jumper you remove the clip. Sometimes a jumper will have three pins, labeled 1, 2 and 3. In this case you would connect either pins 1 and 2 or 2 and 3.

3

2

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Open

Closed

Closed 2-3

The jumper settings are schematically depicted in this manual as follows:

1 2 3

Open

Closed

Closed 2-3

A pair of needle-nose pliers may be helpful when working with jumpers.

If you have any doubts about the best hardware configuration for your application, contact your local distributor or sales representative before you make any changes.

Generally, you simply need a standard cable to make most connections.

12 SBC-455 User's Manual

Safety precautions

Warning! Alwayscompletelydisconnectthepowercordfrom yourchassiswheneveryouareworkingonit.Do notmakeconnectionswhilethepowerison

becausesensitiveelectroniccomponentscanbe damagedbythesuddenrushofpower.Only experiencedelectronicspersonnelshouldopen the PC chassis.

Caution! Alwaysgroundyourselftoremoveanystatic chargebeforetouchingtheCPUcard.Modern

electronicdevicesareverysensitivetostatic electriccharges.Useagroundingwriststrapat alltimes.Placeallelectroniccomponentsona static-dissipativesurfaceorinastatic-shielded bagwhentheyarenotinthechassis.

Installing the CPU

The SBC-455 CPU card supports most 486 CPUs. The system's performance depends on the CPU you choose. You can install or upgrade the CPU in the board's PGA socket by following the procedures outlined below. If your system has an existing CPU, you need to remove it before installing the new CPU.

Removing a CPU

1.Disconnect power from the chassis, and unplug all connections to the CPU card. Then, remove the CPU card from the chassis by following the instructions in the user's manual for your chassis.

2.Lift the CPU out of the PGA socket. The old chip may be difficult to remove. You may find spray chip lubricant, designed for pin-grid-array (PGA) devices, and a chip puller helpful. These are available at electronics hobbyists' supply stores.

Chapter 2 Installation 13

Installing a CPU

To install the CPU, follow the instructions that came with it. If no documentation was provided, the general procedures for installing a CPU are outlined below:

1.Lubricate the pins on the CPU with lubricant for PGA devices. This makes the CPU slide in much easier and greatly reduces the chance of damaging the pins and other components.

2.Carefully align the CPU so that it is parallel to the socket. Make sure that the notch on the corner of the CPU matches the notch on the inside of the socket.

3.Gently push the CPU into the socket. There will probably be a small gap between the CPU and the socket even when it is fully seated. DO NOT USE EXCESSIVE FORCE!

When you install a new CPU, you may have to adjust other settings on the board, such as CPU type, CPU clock, and PCI speed, to accommodate it. Make sure that the settings are correct for your CPU. Improper settings may damage the CPU.

14 SBC-455 User's Manual

CPU type select (JP1, JP3, JP4)

JP1, JP3, and JP4 must be set to match the CPU type. The chart below shows the proper jumper setting for their respective CPU.

CPU Type select (JP4, JP3, JP1)

 

Intel P24T

AMD/Intel DX4 Series

AMD-X5-133/

Intel 486SX

 

 

Intel P24D

AMD DX2-66(WB)

 

 

Intel DX2-66

 

(default)

 

 

 

AMD DE2-66

 

 

 

JP

4 3 1

JP

4 3 1

JP

4 3 1

JP 4 3 1

Pin

1

Pin

1

Pin

1

Pin 1

 

2

 

2

 

2

2

 

3

 

3

 

3

3

 

4

 

4

 

4

4

 

5

 

5

 

5

5

 

6

 

6

 

6

6

 

7

 

7

 

7

7

 

8

 

8

 

8

8

 

9

 

9

 

9

9

Cyrix/IBM/ST

Cyrix/IBM/ST/TI

 

AMD

5x86 , DX4

 

DX2 Series

DX2-66(WT)

Series

 

 

 

 

JP

4 3 1

JP

4 3 1

JP

4 3 1

Pin

1

Pin

1

Pin

1

 

2

 

2

 

 

2

 

 

3

 

 

3

 

 

3

 

 

4

 

 

4

 

 

4

 

 

5

 

 

5

 

 

5

 

 

6

 

 

6

 

 

6

 

 

7

 

 

7

 

 

7

 

 

8

 

 

8

 

 

8

 

 

9

 

 

9

 

 

9

 

 

 

 

Chapter 2 Installation 15

CPU Vcc select (JP2)

JP2 must be set to match the CPU type. The chart below shows the proper jumper settings for their respective Vcc.

CPU Vcc select (JP2)

 

 

5.0 V

3.3 V

3.45 V (default)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.0 V

3.6 V

CPU clock select (JP9, JP10)

JP9 and JP10 are used to synchronize the CPU clock with the CPU type. Set the CPU clock according to the base CPU speed.

CPU clock select (JP9, JP10)

25 MHz 33 MHz (default)

40 MHz

50MHz

16 SBC-455 User's Manual

Installing DRAM (SIMMs)

The SBC-455 CPU card provides two 72-pin SIMM (Single In-line Memory Module) sockets and supports between 1 MB and 64 MB DRAM.

When installing SIMMs, make sure that Bank 1 is filled first.

Installing SIMMs

Notethatthemodulescanonlyfitintoasocketoneway.

1.Insert the memory module into the socket at a moderate angle.

2.Push the module toward the vertical posts at both ends of the socket until the module is upright and the retaining clips at both ends of the module click into place. When positioned correctly, the pins on top of the vertical posts should correspond to the circular holes on the ends of the module.

3.Repeat steps 1 and 2 for each module you install.

Removing SIMMs

If you need to remove a SIMM, follow the procedures below:

1.Supporting the SIMM with a finger, use a pen or a similarly shaped object and press one retaining clip straight down.

2.Repeat for the other side. When released, the retaining clips will push the SIMM up and out of its upright position.

3.Carefully pull the SIMM out of the socket with your fingers.

4.Repeat the above steps for each module you remove.

Chapter 2 Installation 17

IDE hard drive connections (IDE)

You can attach two Enhanced Integrated Device Electronics hard disk drives to the SBC-455's internal controller. The card comes with a 40-pin flat piggyback cable. This cable has three identical 40-pin flat-cable connectors.

Connecting the hard drive

Wire number 1 on the cable is red or blue, and the other wires are gray.

1.Connect one end of the cable to the IDE connector. Make sure that the red (or blue) wire corresponds to pin 1 on the connector, which is labeled on the board (on the right side).

2.Plug the other end of the cable to the Enhanced IDE hard drive, with pin 1 on the cable corresponding to pin 1 on the hard drive. (See your hard drive's documentation for the location of the connector.)

Unlike floppy drives, you can make the connections with any of the connectors on the cable. If you install two drives, you will need to set one as the master and one as the slave. You do this using jumpers on the drives. If you install just one drive, set it as the master.

18 SBC-455 User's Manual

Pin assignments

The following table lists the pin numbers and their respective signals:

IDE Connector (PRIMARY IDE)

Pin

Signal

Pin

Signal

1

Reset

2

GND

 

 

 

 

3

D7

4

D8

 

 

 

 

5

D6

6

D9

7

D5

8

D10

 

 

 

 

9

D4

10

D11

 

 

 

 

11

D3

12

D12

 

 

 

 

13

D2

14

D13

 

 

 

 

15

D1

16

D14

 

 

 

 

17

D0

18

D15

 

 

 

 

19

GND

20

N.C.

21

N.C,

22

GND

 

 

 

 

23

IOW

24

GND

 

 

 

 

25

IOR

26

GND

 

 

 

 

27

IORDY

28

BALE

29

N.C.

30

GND

 

 

 

 

31

IRQ 14

32

-I/O CS16

 

 

 

 

33

A1

34

N.C.

 

 

 

 

35

A0

36

A2

37

CS0

38

CS1

 

 

 

 

39

-ACT

40

GND

 

 

 

 

IDE LED (IDE LED)

You can connect an LED to indicate that an IDE device is in use. The pin assignments for this jumper are as follows:

IDE LED pin assignments (IDE LED)

Pin Function

1-R/W IDE

2Pull high

Chapter 2 Installation 19

Floppy drive connections (FLOPPY DISK)

You can attach up to two floppy disks to the SBC-455's on-board controller. You can use any combination of 5 1/4" (360 KB and 1.2 MB) and/or 3 1/2" (720 KB, 1.44 MB, and 2.88 MB) drives.

The SBC-455 CPU card comes with a 34-pin daisy-chain drive connector cable. On one end of the cable is a 34-pin flat-cable connector. There are two sets of floppy disk drive connectors, one in the middle, and one on the other end. Each set consists of a 34pin flat-cable connector (usually used for 3.5" drives) and a printed-circuit board connector (usually used for 5.25" drives).

Connecting the floppy drive

1.Plug the 34-pin flat-cable connector into the FLOPPY DISK connector.

2.Attach the appropriate connector on the other end of the cable to the floppy drive(s). You can use only one connector in the set. The set on the end (after the twist in the cable) connects to the A: floppy. The set in the middle connects to the B: floppy.

Pin assignments

The following table lists the pin assignments for the FLOPPY DISK connector:

FLOPPY DISK Connector

Pin

Signal

Pin

Signal

1~33 (odd) GND

2

High density

 

 

 

 

4, 6

Unused

8

Index

 

 

 

 

10

Motor enable A

12

Driver select B

 

 

 

 

14

Driver select A

16

Motor enable B

 

 

 

 

18

Direction

20

Step pulse

 

 

 

 

22

Write data

24

Write enable

 

 

 

 

26

Track 0

28

Write protect

30

Read data

32

Select head

 

 

 

 

34

Disk change

 

 

 

 

 

 

20 SBC-455 User's Manual

Parallel port (PRINTER)

Normally, the parallel port is used to connect the card to a printer. The SBC-455 includes an on-board parallel port, accessed through the PRINTER connector, a 26-pin flat-cable connector. The CPU card comes with an adapter cable, which lets you use a traditional DB-25 connector. The cable has a 26-pin connector on one end and a DB-25 connector on the other, mounted on a retaining bracket.

Installing the retaining bracket

The retaining bracket installs at an empty slot in your system's chassis. It provides an external port that allows your parallel peripheral to access to the card's parallel port connector.

1.Find an empty slot in your chassis.

2.Unscrew the plate that covers the end of the slot.

3.Screw in the bracket in place of the plate.

4.Next, attach the flat-cable connector to the PRINTER connector. Wire 1 of the cable is red or blue, and the other wires are gray. Make sure that Wire 1 connects to Pin 1 of the PRINTER connector. Pin 1 is on the right side of the PRINTER connector.

Pin assignments

PRINTER Connector

Pin

Signal

Pin

Signal

1

Strobe

2

Data 0

 

 

 

 

3

Data 1

4

Data 2

 

 

 

 

5

Data 3

6

Data 4

 

 

 

 

7

Data 5

8

Data 6

9

Data 7

10

-Acknowledge

 

 

 

 

11

Busy

12

Paper empty

 

 

 

 

13

+ Select

14

- Auto feed

 

 

 

 

15

- Error

16

- Init printer

17

- Select input

18~25

GND

 

 

 

 

Chapter 2 Installation 21

Parallel port DRQ and DACK (JP11)

You can select the parallel port DRQ and DACK by setting JP11. The following charts show the available options.

Parallel port DRQ and DACK selection (JP11)

DRQ1(default)

DRQ3

DACK 1 (default)

DACK3

Power supply connections (POWER CON)

Power supply connector

In single board computer (non-passive backplane) applications, you will need to connect power directly to the SBC-455 board using POWER CON. This connector is fully compatible with the standard PC power supply connector. See the following table for its pin assignments:

Power connector (POWER CON)

Pin Function

1N.C.

2+5 VDC

3+12 VDC

4-12 VDC

5GND

6GND

22 SBC-455 User's Manual

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