LSI LSIU40SE User Manual

USER’S

GUIDE

LSIU40SE Dual Channel PCI to Ultra SCSI Host Adapter

August 2002

Version 2.2

®

DB15-000106-02

Electromagnetic Compatibility Notices

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

1. This device may not cause harmful interference, and

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 B digital device, pursuant to part

15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment off and on, the user
is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and the receiver.

• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

• Consult the dealer or an experienced radio/TV technician for help.

Shielded cables for SCSI connection external to the cabinet are used in the compliance testing of this Product. LSI
Logic is not responsiblefor any radio or television interference caused byunauthorizedmodification of this equipment
or the substitution or attachment of connecting cables and equipment other than those specified by LSI Logic. The
correction of interferences caused by such unauthorized modification, substitution, or attachment will be the
responsibility of the user.

The LSI Logic LSIU40SE is tested to comply with FCC standards for home or office use.

This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.
Cet appareil numérique de la classe B respecte toutes les exigences du Règlement sur le matériel brouilleur du

Canada.

This is a Class B product based on the standard of the Voluntary Control Council for Interference from Information
Technology Equipment (VCCI). If this is used near a radio or television receiver in a domestic environment, it may
cause radio interference. Install and use the equipment according to the instruction manual.

LSI Logic Corporation
North American Headquarters
Milpitas, CA

408.433.8000

ii

This document contains proprietary information of LSI Logic Corporation. The
information contained herein is not to be used by or disclosed to third parties
without the express written permission of an officer of LSI Logic Corporation.

LSI Logic products are not intended for use in life-support appliances, devices,
or systems. Use of any LSI Logic product in such applications without written
consent of the appropriate LSI Logic officer is prohibited.

Document DB15-000106-02, Fourth Edition (August 2002)
This document describes the LSI Logic LSIU40SE Dual Channel PCI to Ultra
SCSI Host Adapter and will remain the official reference source for all
revisions/releases of this product until rescinded by an update.

LSI Logic Corporation reserves the right to make changes to any products herein
at any time without notice. LSI Logic does not assume any responsibility or
liability arising out of the application or use of any product described herein,
except as expressly agreed to in writing by LSI Logic; nor does the purchase or
use of a product from LSI Logic convey a license under any patent rights,
copyrights, trademark rights, or any other of the intellectual property rights of LSI
Logic or third parties.

Copyright © 1998–2002 by LSI Logic Corporation. All rights reserved.
TRADEMARK ACKNOWLEDGMENT

LSI Logic, the LSI Logic logo design, and SDMS are trademarks or registered
trademarks of LSI Logic Corporation. All other brand and product names may be
trademarks of their respective companies.

DB

To receive product literature, visit us at http://www.lsilogic.com.
For a current list of our distributors, sales offices, and design resource

centers, view our web page located at
http://www.lsilogic.com/contacts/na_salesoffices.html

iii

iv

Audience

Preface

This book is the primary reference and user’s guide for the LSI Logic
LSIU40SE Dual Channel PCI to Ultra SCSI Host Adapter. It contains a
complete functional description for the LSIU40SE and includes complete
physical and electrical specifications for the LSIU40SE.

This document assumes that you have some familiarity with
microprocessors and related support devices. The people who benefit
from this book are:

• Engineers and managers who are evaluating the processor for

possible use in a system

• Engineers who are designing the processor into a system

Organization

This document has the following chapters and appendixes:

• Chapter 1, Using the LSIU40SE, defines the interfaces and

characteristics of the LSIU40SE.

• Chapter 2, Installing the LSIU40SE, provides both quick and detailed

installation instructions.

• Chapter 3, Configuring the LSIU40SE, describes the SCSI BIOS

Configuration Utility to configure adapter and device settings.

• Appendix A, Technical Specifications, describes the physical and

operational environments of the LSIU40SE.

• Appendix B, Glossary of Terms and Abbreviations, provides

definitions of various terminology that is referenced throughout this
user’s guide.

Preface v

Related Publications

PCI Storage Device Management Systems SDMS™ 4.0 User’s Guide,

Order Number S14007.A

Revision Record

Revision Date Remarks

1.0 1/97 First release.

2.0 9/98 Updated Chapter 3 to reflect 4.11 BIOS; new figure for channel switches.

2.1 12/00 All product names changed from SYM to LSI.

2.2 8/02 Product name changed from LSI22801 to LSIU40SE.

vi Preface

Contents

Chapter 1 Using the LSIU40SE

1.1 General Description 1-1

1.2 Features 1-2

1.2.1 PCI Interface 1-2

1.2.2 SCSI Interface 1-2

1.2.3 Board Characteristics 1-2

1.3 Interface Descriptions 1-3

1.3.1 The PCI Interface 1-3

1.3.2 The SCSI Interface 1-3

1.3.3 Ultra SCSI 1-4

Chapter 2 Installing the LSIU40SE

2.1 Quick Installation Procedure 2-1

2.2 Detailed Installation Procedure 2-3

2.2.1 Before You Start 2-3

2.2.2 Inserting the Host Adapter 2-4

2.2.3 Connecting the SCSI Peripherals 2-6

2.2.4 Making Internal SCSI Bus Connections 2-9

2.2.5 Making External SCSI Bus Connections 2-16

2.2.6 SCSI Bus Termination 2-19

2.2.7 Internal SCSI Connections 2-20

2.2.8 External SCSI Connections 2-21

2.2.9 Internal and External SCSI Connections 2-22

2.2.10 Internal SCSI Connections for Both Internal
Connectors 2-23

2.2.11 Setting SCSI IDs 2-26

2.2.12 Setting Interrupts 2-27

2.3 Completing the Installation 2-28

Contents vii

Chapter 3 Configuring the LSIU40SE

3.1 When to Configure the LSIU40SE 3-1

3.2 Starting the SCSI BIOS Configuration Utility 3-2

3.2.1 Configuration Utility Main Menu 3-3

3.2.2 Utilities Menu 3-7

3.2.3 Device Selections Menu 3-11

3.3 Exiting the SCSI BIOS Configuration Utility 3-14

Appendix A Technical Specifications

A.1 Physical Environment A-1

A.1.1 Physical Characteristics A-1
A.1.2 Electrical Characteristics A-2
A.1.3 Thermal, Atmospheric Characteristics A-3
A.1.4 Electromagnetic Compliance A-3
A.1.5 Safety Characteristics A-3

A.2 Operational Environment A-3

A.2.1 The PCI Interface A-3
A.2.2 The SCSI Interface A-6
A.2.3 The LED Interface A-9

Appendix B Glossary of Terms and Abbreviations

Index

Customer Feedback

viii Contents

Figures

2.1 Hardware Connections for the LSIU40SE 2-5

2.2 Inserting the Host Adapter 2-6

2.3 SCSI Cables 2-7

2.4 Internal Wide SCSI Ribbon Cable to Host Adapter
Connection 2-9

2.5 Internal SCSI Ribbon Cable to Host Adapter Connection 2-10

2.6 Internal SCSI Ribbon Cable to Internal SCSI Device
Connection 2-11

2.7 Connecting Additional Internal SCSI Devices 2-12

2.8 Multiple Internal SCSI Devices Chained Together 2-13

2.9 Using Both Internal Connectors on a Channel 2-14

2.10 SCSI LED Connectors 2-15

2.11 External Cable to Host Adapter 2-16

2.12 External Cable to External SCSI Device 2-17

2.13 Multiple External SCSI Devices Chained Together 2-18

2.14 Internal SCSI Device Termination 2-20

2.15 External SCSI Device Termination 2-21

2.16 Internal and External SCSI Device Termination 2-22

2.17 Internal and Internal SCSI Device Termination 2-23

2.18 Termination Override Switch Settings for U1 and U2 2-25

3.1 Main Menu 3-4

3.2 Change Status on Next Boot Menu 3-5

3.3 Boot Order Menu 3-5

3.4 Adapter Configuration Menu 3-6

3.5 Utilities Menu 3-7

3.6 Adapter Setup Menu 3-8

3.7 Device Selections Menu 3-11

3.8 Device Selections Menu (Cont.) 3-12

A.1 LSIU40SE Mechanical Drawing A-2

Contents ix

x Contents

Tables

2.1 SCSI ID Record 2-27

2.2 Setting Interrupts 2-27

3.1 Global Default Settings 3-1

3.2 Device Default Settings 3-2

A.1 PCI Connector J1 (Front) A-4
A.2 PCI Connector J1 (Back) A-5
A.3 SCSI Connectors J2/J6 and J3/J7 A-7
A.4 SCSI Connectors J4/J8 A-8
A.5 LED Connectors J5/J9 A-9

Contents xi

xii Contents

Chapter 1
Using the LSIU40SE

This chapter describes the LSIU40SE Dual Channel PCI to Ultra SCSI
Host Adapter interface to PCI computer systems and includes these
topics:

• Section 1.1, “General Description,” page 1-1

• Section 1.2, “Features,” page 1-2

• Section 1.3, “Interface Descriptions,” page 1-3

1.1 General Description

The LSI Logic LSIU40SE provides a SCSI-3, Ultra SCSI interface to PCI
computer systems. Installing this adapter in your PCI system allows
connection of SCSI devices over a SCSI bus.

The dual channel LSIU40SE is a 16-bit, Single-Ended (SE), SCSI
solution for your computer, using only one PCI slot. This board can
support legacy Fast SCSI devices, and the newest Ultra SCSI devices.
It is also backwards compatible with the existing LSI8751SP host adapter
but with a different external connector.

The Storage Device Management System (SDMS™) software operates
the board. The design of the board does not prevent other software from
being written and used with it. BIOS support for this host adapter is
incorporated on the board in an 8 X 64K Flash BIOS.

This guide, along with the PCI Storage Device Management System
SDMS 4.0 User’s Guide, contains product information and installation
instructions to help you gain the full benefits of the LSIU40SE.

LSIU40SE Dual Channel PCI to Ultra SCSI Host Adapter 1-1

1.2 Features

This section provides a high leveloverview of the PCI Interface, the SCSI
Interface, and Board Characteristics for the LSIU40SE.

1.2.1 PCI Interface

• Full 32-bit DMA bus master

• Zero wait-state bus master data bursts

• Universal PCI bus voltage support

1.2.2 SCSI Interface

• Two independent SCSI channels

• 16-bit SE

• Automatically enabled active termination

• Three connectors per channel:

68-pin VHDCI external
68-pin right-angle high density internal with jack blocks
50-pin vertical low density internal

• Fast and Ultra SCSI data transfer capability

• SCSI termination power (TERMPWR) source with autoresetting

circuit breaker and TERMPWR shorted LED

• SCSI Configured AutoMatically (SCAM) off in BIOS Version 4.09 and

later

• Flash Electronically Erasable Programmable Read Only Memory

(EEPROM) for BIOS storage

• Serial NonVolatile Random Access Memory (NVRAM) on each

channel for user configuration utility and SCAM information storage

• SCSI activity LED connector for each channel

1.2.3 Board Characteristics

• PCI board dimensions,

190 x 96.52 mm (7.50 x 3.80 inches)

• Universal 32-bit card edge connector

1-2 Using the LSIU40SE

1.3 Interface Descriptions

This section provides a more detailed explanation about the PCI
Interface, the SCSI Interface, and Ultra SCSI.

1.3.1 The PCI Interface

PCI is a high-speed standard local bus for interfacing a number of I/O
components to the processor and memory subsystems in a high end PC.
The PCI functionality for the LSIU40SE is contained within the
LSI53C876 PCI to Ultra SCSI I/O Processor chip. The LSI53C876
connects directly to the PCI bus and generates timing protocol in
compliance with the PCI Local Bus Specification Revision 2.1 standard.

The PCI interface operates as a 32-bit DMA bus master. The connection
is made through edge connector J1 (see Figure 2.1). The signal
definitions and pin numbers conform to the PCI Local Bus Specification
Revision 2.1 standard. The LSIU40SE conforms to the PCI universal
signaling environment for a 5 V or 3.3 V PCI bus.

1.3.2 The SCSI Interface

The SCSI functionality for the LSIU40SE is contained within the
LSI53C876. The LSI53C876 connects directly to the two SCSI buses and
generates timing and protocol in compliance with the SCSI standard.

The SCSI interfaces on the LSIU40SE operate as 16-bit, synchronous or
asynchronous, SE bus, and support Ultra SCSI protocols and 16-bit
arbitration. Each interface is made through two of the connectors J2, J3,
and J4 (for Channel A), or J6, J7, and J8 (for Channel B). Connectors
J2 and J6 are 68-pin high density right-angle receptacles. Connectors J3
and J7 are shielded 68-pin VHDCI 0.8 mm right-angle receptacles that
protrude through the back panel bracket. Connectors J4 and J8 are
50-pin low density vertical shrouded pin headers. See Figure 2.1 for the
location of these connectors.

SE SCSI active termination is provided on the LSIU40SE. Termination is
automatically enabled when only one of the connectors J2, J3, and, J4
(or J6, J7, and, J8) is used, or when an 8-bit device is connected to the
16-bit J3 or J7 connectors. In the latter case, only the upper 8 data bits
are automatically terminated. The LSIU40SE supplies SCSI bus

Interface Descriptions 1-3

TERMPWR through a blocking diode and a self-resetting 1.5 A short
circuit protection device. The on-board LED lights when TERMPWR is
shorted. Separate switches for each channel allow user override of
termination.

A 40 MHz oscillator is installed on the LSIU40SE to provide the clock
frequency to the LSI53C876 that is necessary to support Wide Ultra
SCSI transfers of up to 40 Mbytes/s.

1.3.3 Ultra SCSI

The LSIU40SE fully supports Ultra SCSI as well as Fast SCSI
simultaneously. Ultra SCSI is an extension of the SCSI-3 family of
standards that expands the bandwidth of the SCSI bus, allowing faster
synchronous data transfers.

Special SCSI cables are specified for operation with Ultra SCSI devices.
You must consider the total number of devicesand the length of the SCSI
bus when setting up your system. See Chapter 2, “Installing the

LSIU40SE,” for a more detailed explanation of SCSI bus connections.

1-4 Using the LSIU40SE

Chapter 2
Installing the LSIU40SE

This chapter provides instructions on how to install the LSIU40SE and
includes these topics:

• Section 2.1, “Quick Installation Procedure,” page 2-1

• Section 2.2, “Detailed Installation Procedure,” page 2-3

• Section 2.3, “Completing the Installation,” page 2-28

2.1 Quick Installation Procedure

This section is provided for the experienced computer user with prior
host adapter installation and SCSI bus setup experience. If you prefer a
more detailed guidance in installing the LSIU40SE, please follow the
instructions in Section 2.2, “Detailed Installation Procedure.”

For safe and proper installation, check the user’s manual supplied with
your computer and perform the following steps.

Step 1. Ground yourself before removing this host adapter board.

Remove the LSIU40SE from the packing and check that it is not
damaged. An example of this host adapter board is shown in

Figure 2.1.

Step 2. Switch off and unplug the system.
Step 3. Remove the cabinet cover on your computer to access the PCI

slots. Refer to the user’s manual for your computer.

Caution: Ground yourself by touching a metal surface before

handling boards. Static charges on your body can damage
electronic components. Handle plug-in boards by the edge;
do not touch board components or gold connector contacts.
The use of a static ground strap is recommended.

LSIU40SE Dual Channel PCI to Ultra SCSI Host Adapter 2-1

Step 4. Locate the slots for PCI plug-in board installation. The

LSIU40SE requires a PCI slot that allows bus master operation.
Step 5. Remove the blank bracket panel on the back of the computer

aligned with the PCI slot you intend to use. Save the bracket

screw.
Step 6. Carefully insert edge connector J1 (see Figure 2.1) of the host

adapter into the PCI slot. Make sure the edge connector is

properly aligned before pressing the board into place.

Note: You may notice that the components on a PCI host adapter

face the opposite way from non-PCI adapter boards you
have in your system. This is correct, and the board is keyed
to go in only one way.

Step 7. The bracket around the connectors J3 and J7 (see Figure 2.1)

should fit where the blank bracket panel was removed. Secure

the bracket with the bracket screw before making the internal

and external SCSI bus connections.
Step 8. If you are connecting any internal SCSI devices, plug a 68-pin

connector on the end of the internal SCSI ribbon cable into

connector J2 or J6 for Wide SCSI, or a 50-pin connector into

connector J4 or J8 for normal SCSI (see Figure 2.1). Make

certain to match pin 1 on both connectors.
Step 9. Connect your computer’s LED cable if desired. This is designed

to drive the front panel LED found on most PC cabinets to

indicate activity on the SCSI bus.
Step 10. Replace the cabinet cover as described in the user’s manual for

your computer.
Step 11. Make all external SCSI bus connections. Finally, refer to the

PCI Storage Device Management System SDMS 4.0 User’s

Guide (or the guide for the software that you will use) to load

the driver software for your particular operating system.
Remember: The SCSI bus requires proper termination, and no

duplicate SCSI IDs.

2-2 Installing the LSIU40SE

2.2 Detailed Installation Procedure

This section provides step-by-step instructions for installing the
LSIU40SE, and connecting it to your SCSI peripherals. If you are
experienced in these tasks, you may prefer to use the preceding Section

2.1, “Quick Installation Procedure.” If you are not confident that you can

perform the tasks as described here, LSI Logic suggests getting
assistance.

2.2.1 Before You Start

Before starting, look through the following task list to get an overall idea
of the steps to perform.

• Open your PC cabinet and select an open PCI slot

• Insert the host adapter

• Connect the internal and external SCSI peripherals

• Terminate the SCSI bus

• Set the peripheral SCSI IDs

• Make any configuration changes

• Close your PC cabinet

• Install the software

The SCSI host adapter acts on your computer’s behalf as the host to
your suite of SCSI peripherals. Each chain of SCSI peripheral devices
and their host adapter work together, and are referred to as a SCSI bus.

Each SCSI host adapter that you install can access up to 15 peripheral
devices per channel.

Detailed Installation Procedure 2-3

2.2.2 Inserting the Host Adapter

For safe and proper installation, check the user’s manual supplied with
your computer to perform the following steps.

Step 1. Ground yourself before removing this host adapter board.

Remove the LSIU40SE from the packing and check that it is not

damaged. An example of this host adapter board is shown in

Figure 2.1.

Step 2. Switch off and unplug power cords for all components in your

system.
Step 3. Remove the cabinet cover on your computer to access the PCI

slots.

Caution: Ground yourself by touching a metal surface before

removing the cabinet cover. Static charges on your body
can damage electronic components. Handle plug-in boards
by the edge; do not touch board components or gold
connector contacts. The use of a static ground strap is
recommended.

Step 4. Locate the slots for PCI plug-in board installation.

Refer to the user’s manual for your computer to confirm the

location of the PCI slots. The LSIU40SE requires a PCI slot that

allows bus master operation.
Step 5. Remove the blank bracket panel on the back of the computer

aligned with the PCI slot you intend to use. Save the bracket

screw.

2-4 Installing the LSIU40SE

Figure 2.1 Hardware Connections for the LSIU40SE

Channel A

68-pin External

VHDCI SCSI

Interface J3

Channel B

68-pin External

VHDCI SCSI

Interface J7

Channel A

LED Connector

Channel A

68-Pin Internal

High Density

SCSI Interface

J4

Channel A

50-Pin Internal

Low Density

SCSI Interface

Channel B

J5

J4

LSIU40SE PCI Bus

Connector on Mainboard

68-Pin Internal

High Density

SCSI Interface

J6

J1

Channel B

50-Pin Internal

Low Density

SCSI Interface

J8

Channel B
LED Connector
J9

Channel B
Termination
Override Switches
U2

Channel A
Termination
Override Switches
U1

Step 6. Carefully insert edge connector J1 (see Figure 2.1) of the host

adapter into the PCI slot. Make sure the edge connector is

properly aligned before pressing the board into place as shown

in Figure 2.2.
Step 7. To plan on hooking up another host adapter on the same bus

as this host adapter, or an 8-bit device on 68-pin connector,see

Section 2.2.10.1, “Channel Switches,” discussed later in this

chapter.

Notice that the components on a PCI host adapter face the

opposite way from non-PCI adapter boards you have in your

system. This is correct, and the board is keyed to go in only

one way.

Detailed Installation Procedure 2-5

Figure 2.2 Inserting the Host Adapter

Bracket Screw

Step 8. The bracket around the connectors J3 and J7 (see Figure 2.1)

should fit where you removed the blank panel. Secure it with

the bracket screw (see Figure 2.2) before making the internal

and external SCSI bus connections.

2.2.3 Connecting the SCSI Peripherals

SCSI bus connections to the LSIU40SE are made with an unshielded,
68 or 50-conductor ribbon cable (see Figure 2.3). One side of this cable
is marked with a color to indicate the pin-1 side. Sometimes the
connectors on this cable are keyed to ensure proper pin-1 connection.

2-6 Installing the LSIU40SE

32-bit slots

64-bit slots

All external SCSI bus connections to the LSIU40SE are made with
shielded, 68-conductor cables (see Figure 2.3). The connectors on this
cable are always keyed to ensure proper pin-1 connection.

Figure 2.3 SCSI Cables

SCSI Cables for Internal Connections

SCSI Cable for Internal Connections

SCSI Cable for External Connections

50-pin High Density

50-pin Low Density

68-pin VHDCI

Important: You can connect up to 16 SCSI and Fast SCSI devices,

including the host adapter board, on a SE SCSI bus only if
they are at least .3 m apart on a 6-meter cable. For Ultra
SCSI, you can connect up to eight devices, including the
host adapter board, on a SE Ultra SCSI bus only if they are
evenly spaced on a 1.5-meter Ultra SCSI cable (0.19 m
between devices). You can connect up to four devices if
they are evenly spaced on a 3-meter Ultra SCSI cable
(0.75 m between devices). Your SE SCSI bus should not
exceed 3 meters (total internal and external cable lengths),

Detailed Installation Procedure 2-7

even with fewer than four devices. The LSIU40SE
autotermination scheme is designed to operate properly
when plugging the end connector of the SCSI cables into
the LSIU40SE SCSI connectors.

If you connect the LSIU40SE in the middle of the bus, you
will incur improper termination since the switches are not
assigned on that bus correctly. Refer to Section 2.2.10.1,

“Channel Switches,” for more information.

2-8 Installing the LSIU40SE

2.2.4 Making Internal SCSI Bus Connections

This section provides step-by-step instructions about making internal
SCSI bus connections.

Step 1. If you are connecting an internal Wide SCSI device, plug the

68-pin connector on one end of a wide internal SCSI ribbon

cable into the connector J2 or J6 (see Figure 2.4).

Figure 2.4 Internal Wide SCSI Ribbon Cable to Host Adapter

Connection

J2

J6

Detailed Installation Procedure 2-9

Step 2. To connect an 8-bit internal SCSI device, plug the 50-pin

connector on one end of an 8-conductor internal SCSI ribbon

cable into the connector J4 or J8 (see Figure 2.5). Make certain

to match pin 1 on both connectors.

Figure 2.5 Internal SCSI Ribbon Cable to Host Adapter

Connection

Channel B

Channel A

2-10 Installing the LSIU40SE

Step 3. Plug the 68-pin or 50-pin connector on the other end of the

internal SCSI ribbon cable into the SCSI connector on the

internal SCSI device. An example of this connection is shown

in Figure 2.6. You must match pin 1 on all connections.

Figure 2.6 Internal SCSI Ribbon Cable to Internal SCSI Device

Connection

Detailed Installation Procedure 2-11

Step 4. Additional internal SCSI devices are plugged in by using an

internal SCSI ribbon cable with the required number of

connectors attached along its length as shown in Figure 2.7.

An example of this type of chained connection is shown in

Figure 2.8. Make sure to match pin 1 on all connections.

Figure 2.7 Connecting Additional Internal SCSI Devices

2-12 Installing the LSIU40SE

Figure 2.8 Multiple Internal SCSI Devices Chained Together

Detailed Installation Procedure 2-13

Step 5. It is also possible to use both internal connectors on a channel

if you do not attach any external devices to that channel. An

example of this configuration is shown in Figure 2.9.

Figure 2.9 Using Both Internal Connectors on a Channel

Note: When two connectors are already used on a channel, the

third connector cannot be used.

2-14 Installing the LSIU40SE

Step 6. Most PC cabinets are designed with a front panel LED

(sometimes already connected to an existing IDE drive). You

may connect this LED cable to the host adapter, as shown in

Figure 2.10. This causes the front panel LED to indicate activity

on the SCSI bus.

This connector is not keyed. The orientation of the LED cable

does not matter as long as all four pins are connected.

Figure 2.10 SCSI LED Connectors

Some LED cables have only two wires. In this case, place the connector
on one end or the other of J5 or J9. If the LED does not light during SCSI
bus activity from this host adapter, you may have to rotate the LED cable
180° on J5 or J9.

Detailed Installation Procedure 2-15

2.2.5 Making External SCSI Bus Connections

This section provides step-by-step instructions about making external
SCSI bus connections.

Step 1. To connect external SCSI devices to the LSIU40SE, plug the

68-pin connector on one end of a shielded external SCSI

VHDCI cable (see Figure 2.3) into the host adapter connector

J3 or J7 (see Figure 2.1).

This connector is now bracketed to the back panel of your

computer. Figure 2.11 shows how this connection is made.

Figure 2.11 External Cable to Host Adapter

2-16 Installing the LSIU40SE

Step 2. Plug the 68-pin connector on the other end of the shielded

external SCSI cable into the SCSI connector on the external

SCSI device. An example of this connection is shown in

Figure 2.12.

Figure 2.12 External Cable to External SCSI Device

Detailed Installation Procedure 2-17

Step 3. To connect more than one external SCSI device to the host

adapter, you must chain them together with shielded external

SCSI cables. An example of these chained connections is

shown in Figure 2.13.

Figure 2.13 Multiple External SCSI Devices Chained Together

2-18 Installing the LSIU40SE

2.2.6 SCSI Bus Termination

The devices making up the SCSI bus are connected serially (chained
together) with SCSI cables. The first and last physical SCSI devices
connected on the ends of the SCSI bus must have their terminators
active. All other SCSI devices on the bus must have their terminators
removed or disabled. Remember that the LSIU40SE is also on the SCSI
bus—its termination is automatically enabled when it is connected to the
end of the bus.

The peripheral device terminators are usually set with jumpers, resistor
modules, or with a switch on the peripheral. Refer to the peripheral
manufacturer’s instructions and to the user’s manual for your computer
for information on how to identify the terminator setting of each device
and how to change it.

Caution: The autoenable/disable sensing feature on the LSIU40SE

may enable termination erroneously if it is directly cabledto
another SCSI device or host adapter using the same
sensing method. This is dealt with by properly setting the
termination override switches U1 or U2 (see Figure 2.1).
The LSIU40SE senses SCSI devices by detecting the
ground signal on pin-22 of a 50-conductor internal SCSI
ribbon cable, or pin-50 of an internal or external
68-conductor SCSI cable. If you use an adapter to connect
8-bit devices externally with a 50-conductor SCSI cable,the
ground signal is detected on pin-34.

The LSIU40SE automatically covers SCSI bus termination for five
different bus configurations, depending on the use of the connectors on
the LSIU40SE (see Figure 2.1). The five bus configurations are:

• Only for internal SCSI connections,

• Only for external SCSI connections,

• For both internal and external SCSI connections,

• For connections to both internal connectors, and

• For an internal connection to another LSIU40SE, or any connection

to a deviceusing the same sensing method forautomatic termination
as your LSIU40SE.

Detailed Installation Procedure 2-19

2.2.7 Internal SCSI Connections

If you have only internal SCSI device connections to the host adapter,
you must terminate the last internal device on the SCSI bus. You must
disable the termination on all other devices. Termination on the host
adapter is automatically enabled in this case.

Figure 2.14 shows an example of how termination is determined for this

SCSI bus configuration.

Figure 2.14 Internal SCSI Device Termination

2-20 Installing the LSIU40SE

2.2.8 External SCSI Connections

If you have only external SCSI device connections to the host adapter,
you must terminate the last external device on the SCSI bus. You must
disable the termination on all other devices. Termination on the host
adapter is automatically enabled in this case.

Figure 2.15 shows an example of how termination is determined for this

SCSI bus configuration.

Figure 2.15 External SCSI Device Termination

Last Device
on Chain ­Termination
Enabled

Does Not
End Chain ­Termination
Disabled

Host Adapter
Automatically
Terminated

Detailed Installation Procedure 2-21

2.2.9 Internal and External SCSI Connections

If internal and external SCSI device connections to the host adapter have
been made, then terminate the last internal and external devices on the
SCSI bus. You must disable the termination on all other devices.
Termination on the host adapter is automatically disabled in this case.

Figure 2.16 shows an example of how termination is determined for this

SCSI bus configuration.

Figure 2.16 Internal and External SCSI Device Termination

Last Device

on Chain -

Termination

Enabled

Host Adapter
Termination
Automatically
Disabled

Last Device

on Chain -

Termination

Enabled

2-22 Installing the LSIU40SE

Does Not
End Chain ­Termination
Disabled

2.2.10 Internal SCSI Connections for Both Internal Connectors

If you have internal SCSI device connections to both internal connectors
of a channel, you must terminate the internal devices on each end of the
SCSI bus. You must disable the termination on all other devices.
Termination on the host adapter is automatically disabled in this case.
Remember, you must not use the external connector for a channel if you
use both internal connectors for that channel.

Figure 2.17 shows an example of how termination is determined for this

SCSI bus configuration. If you connect the LSIU40SE in the middle of
the bus, you will incur improper termination since the switches are not
assigned on that bus correctly.

Figure 2.17 Internal and Internal SCSI Device Termination

Last Devices
on Chain –
Termination
Enabled

Host Adapter
Termination
Automatically
Disabled

Does Not
End Chain –
Termination
Disabled

If you have an internal connection to another LSIU40SE, or any
connection to a device that uses the same sensing method for automatic
termination as your LSIU40SE, you must properly set the termination
override switches U1 or U2 (see Figure 2.1).

Detailed Installation Procedure 2-23

2.2.10.1 Channel Switches

When connecting another LSIU40SE, you must turn on the switch for the
connector used on one or both of the boards. Please referto Figure 2.18,
and the next two paragraphs, to determine the correct switch setting.

Four switches for each channel provide cable detection simulation and
forced upper line termination. Switch one simulates a device on the
internal 50-pin connector, switch two simulates a device on the internal
68-pin connector, switch three forces the upper SCSI line terminator to
stay on, and switch four simulates a device on the external 68-pin
connector.

When LSIU40SE is in the middle of a bus using only one connector, then
switch Int68 and Ext68 (switches 2 and 4) for that bus are on. This forces
the terminators for that bus to be disabled.

2-24 Installing the LSIU40SE

Figure 2.18 Termination Override Switch Settings for U1 and U2

1-INT50

2-INT68

3-UPPER TERM

1

2
3

4

1
2

3
4

1
2

3
4

1
2

3
4

NO

Default setting. Autotermination will
work as designed.

NO

Simulates a device on the Internal 50 pin
connector. Use this switch only when a
device is connected to the internal 50 pin
connector that does not ground pin-22,
like another LSI Logic host adapter.

NO

Simulates a device on the Internal 68 pin
connector. Use this switch only when a
device is connected to the internal 68 pin
connector that does not ground pin-50,
like another LSI Logic host adapter.

NO

Forces termination ON the upper data
lines. Use this switch when a narrow 8-bit
device is connected to one of the 68 pin
connectors.

Simulates a device on the External 68 pin

NO

connector. Use this switch only when a
device is connected to the external 68 pin
connector that does not ground pin-50,
like another LSI Logic host adapter.

4-EXT68

1
2

3
4

Detailed Installation Procedure 2-25

2.2.11 Setting SCSI IDs

You must set each SCSI device and the host adapter to a separate SCSI
ID 0 through 15. SCSI ID 7 is the preset host adapter setting, giving it
the highest priority on the SCSI bus. If you plan to boot your computer
from a SCSI hard disk drive on the SCSI bus, that drive should have
SCSI ID 0, or the lowest SCSI ID on the bus. Chapter 3, “Configuring the

LSIU40SE,” explains how to set your host adapter ID using the LSI Logic

SCSI BIOS Configuration Utility.
The peripheral device SCSI IDs are usually set with jumpers or with a

switch on the peripheral. Refer to the peripheral manufacturer’s
instructions and to the user’s manual for your computer to determine the
ID of each device and how to change it. You must have no duplication of
SCSI IDs on a SCSI bus.

Step 1. Determine the SCSI ID of each device on the SCSI bus. Note

Step 2. Make any necessary changes to the SCSI IDs and record the

any duplications and if 8-bit SCSI devices are to be used, the

host adapter ID must not be set above 7.

IDs for future reference. Table 2.1 is provided as a place to

keep this record.

2-26 Installing the LSIU40SE

Table 2.1 SCSI ID Record

SCSI ID SCSI Device

15
14
13
12
11
10

9
8
7 LSIU40SE (default)
6
5
4
3
2
1
0

2.2.12 Setting Interrupts

You should not normally have to change the default interrupt routing for
the LSIU40SE, since performance is usually increased by having two
separate interrupts. However, if your system does not support two
separate interrupts, jumper TP9 (see Figure A.1 on page A-2) is provided
to change the interrupt routing. Table 2.2 explains the jumper settings:

Table 2.2 Setting Interrupts

Jumper Setting Condition

Jumper Out (default) INTB/ is routed to INTB/ on the PCI bus
Jumper In INTB/ is rerouted at power up to INTA/ on the PCI bus

Detailed Installation Procedure 2-27

2.3 Completing the Installation

Before replacing the cover on your computer, review this installation
procedure check list. This can save you effort later.

Verify Installation Procedures Done

Host adapter connection in PCI bus slot secure
Internal SCSI bus connections secure (pin-1 continuity)
External SCSI bus connections secure
Proper SCSI bus termination established
Unique SCSI IDs set and recorded for each device

Step 1. Replace the cabinet cover on your computer.
Step 2. Plug in all power cords, and switch on power to all devices and

your computer.
Step 3. Wait for your computer to boot up.
Step 4. To change the configuration of your host adapter, see

Chapter 3, “Configuring the LSIU40SE.” Finally, refer to the PCI

Storage Device Management System SDMS 4.0 User’s Guide

(or the guide for the software you plan to use) to load the driver

software for your particular operating system.

2-28 Installing the LSIU40SE

Chapter 3
Configuring the
LSIU40SE

This chapter describes configuring the LSIU40SE and includes these
topics:

• Section 3.1, “When to Configure the LSIU40SE,” page 3-1

• Section 3.2, “Starting the SCSI BIOS Configuration Utility,” page 3-2

• Section 3.3, “Exiting the SCSI BIOS Configuration Utility,” page 3-14

3.1 When to Configure the LSIU40SE

In most cases you should not need to change the default configuration
of the host adapter. You may decide to alter these default values if there
is a conflict between device settings, or if you need to optimize system
performance.

Table 3.1 and Table 3.2 list the configuration settings you can change.

The global settings affect the host adapter and all SCSI devices that are
connected to it. The device settings affect only individual SCSI devices.

Table 3.1 Global Default Settings

Settings for the Host

Adapter and All Devices Default Settings

SCAM Support Off
Parity Checking Enabled
Host Adapter SCSI ID 7
Scan Order Low to High (0–Max)

1. Applies to BIOS version 4.09 and later.

LSIU40SE Dual Channel PCI to Ultra SCSI Host Adapter 3-1

1

Table 3.2 Device Default Settings

Settings for Individual SCSI Devices Default Settings

Synchronous Transfer Rate (Mbytes/s) 40
Data Width 16
Disconnect On
Read/Write I/O Time-out (seconds) 10
Scan for Devices at Boot Time Yes
Scan for SCSI LUNs
Queue Tags On

1. Logical Unit Number.

1

Yes

3.2 Starting the SCSI BIOS Configuration Utility

If you have LSI Logic SCSI BIOS Version 4.xx, and it includes the
LSI Logic SCSI BIOS Configuration Utility, you can change the default
configuration of the SCSI host adapters. You may decide to alter these
default values if there is a conflict between device settings or if you need
to optimize system performance.

You can see the version number of your SCSI BIOS in a banner
displayed on your computer monitor during boot. If the utility is available,
the following message also appears on your monitor:

Press Ctrl-C to start LSI Logic Configuration Utility...

This message remains on your screen for about five seconds, giving you
time to start the utility. If you decide to press “Ctrl-C,” the message
changes to:

Please wait, invoking LSI Logic Configuration Utility...

After a brief pause, your computer monitor displays the Main Menu of the
LSI Logic SCSI BIOS Configuration Utility.

NVRAM is available on the LSIU40SE. Changes can be made and stored
to NVRAM using this menu driven utility.

3-2 Configuring the LSIU40SE

Important: This utility is a powerfultool. If, while using it, you somehow

disable all of your controllers, pressing Ctrl-A (or Ctrl-E on
version 4.04 or later) after memory initialization during
reboot allows you to re-enable and reconfigure.

Not all devices detected by the Configuration Utility can be
controlled by the BIOS. Devices such as tape drives and
scanners require that a device driver specific to that
peripheral be loaded. The device driver is provided by the
device manufacturer.

3.2.1 Configuration Utility Main Menu

When you start the LSI Logic SCSI BIOS Configuration Utility, the Main
Menu appears. This menu displays a list of up to four LSI Logic PCI to
SCSI host adapters and information about each of them. The LSIU40SE
appears on the menu as two LSI53C875 entries; one for each channel.
To select an adapter, use only the arrow keys and enter key. Then, you
can view and/or change the current settings for that adapter and the
SCSI devices attached to it.

You can select an adapter only if Current Status is “On”. Changes are
possible since NVRAM is present on the host adapter.

Starting the SCSI BIOS Configuration Utility 3-3

Figure 3.1 is an example of the Main Menu.

Figure 3.1 Main Menu

Main Menu

Port

Irq---------Status--------NVRAM

Num

Level Current Next-Boot Found

LSI53C875
LSI53C875
LSI53C895

FC00
F800
F801

9
9
9

On
On
On

On
Off
Off

Yes
Yes
Yes

Change Adapter Status
Adapter Boot Order
Additional Adapter Configuration
Display Mode = Verbose
Mono/Color
Language
Help
Quit

Below the list of host adapters on the Main Menu display, you see eight
options. They are described in detail below. If these settings are altered,
the system will reboot upon exit from the Configuration Utility using the
Quit option.

3-4 Configuring the LSIU40SE

3.2.1.1 Change Adapter Status

Change Adapter Status allows you to activate or deactivate a host
adapter and all SCSI devices attached to it. When this option is used to
make a change, the change takes place after a reboot upon exit from the
utility. Figure 3.2 is an example of the Change Status on Next Boot Menu.

Figure 3.2 Change Status on Next Boot Menu

Main Menu
Change Status on Next Boot:

LSI53C875
LSI53C875
LSI53C895

To change an adapter's status, select it and press Enter. Press the
Escape (Esc) key to exit from this menu.

3.2.1.2 Adapter Boot Order

Adapter Boot Order allows the user to set the order in which host
adapters will boot when you have more than one LSI Logic host adapter
in your system. When this option is selected, the Boot Order menu
appears. Figure 3.3 is an example of the Boot Order menu.

Figure 3.3 Boot Order Menu

Main Menu
BootSeq Bus DevFunc BootSeq Bus DevFunc
0 LSI53C875 00 A0 1 LSI53C875 00 98

Port
Num

FC00
F800
F801

Irq---------Status--------NVRAM
Level Current Next-Boot Found
9

9
9

On
On
On

On
Off
Off

Yes
Yes
Yes

2 LSI53C895 00 90

To change an adapter's boot order, select it and press Enter. You are
then prompted to enter the new boot sequence number. To remove an
adapter's boot order, press Enter again rather than entering a new
sequence number. While the maximum capacity is 32 adapters, only four

Starting the SCSI BIOS Configuration Utility 3-5

adapters can be assigned a boot order starting with boot sequence
number zero (0). If an invalid number is entered, an error message
appears. When the adapters are ordered as desired, press the Escape
(Esc) key to exit from this menu.

3.2.1.3 Additional Adapter Configuration

Additional Adapter Configuration allows the user to configure an adapter
that is not assigned a boot order. When this option is selected, the
Adapter Configuration menu (as shown in Figure 3.4) appears.

Figure 3.4 Adapter Configuration Menu

Main Menu
BootSeq Bus DevFunc BootSeq Bus DevFunc
1 LSI53C875 00 A0 0 LSI53C875 00 98

LSI53C895

Highlight the adapter to be configured and press Enter. The message
Resetting Adapter, Please wait appears, and then the system scans
for devices. Finally, the Utilities menu appears and lists the available
options, which are described below.

3.2.1.4 Display Mode

Display Mode determines how much information about the host adapters
and SCSI devices appear on your computer monitor during boot. For
more complete information, choose the verbose setting. For a faster
boot, choose the terse setting.

3.2.1.5 Mono/Color

Mono/Color allows the user to choose between a monochrome or color
display for the SCSI BIOS Configuration Utility. If needed, choose the
mono setting to get a more readable screen on a monochrome monitor.

3-6 Configuring the LSIU40SE

3.2.1.6 Language

If enabled, the Language option allows you to select from five languages
for the Configuration Utility: English, German, French, Italian, and
Spanish. Call for support if you have any additional questions.

3.2.1.7 Help

The Help option displays a help screen with information about the Main
Menu.

3.2.1.8 Quit

The Quit option allows exiting from the SCSI BIOS Configuration Utility
when the Main Menu is displayed.

3.2.1.9 Esc

Pressing the Esc key allows exit from all the screens except the Main
Menu.

3.2.2 Utilities Menu

When you select a host adapter on the Main menu, the Utilities menu
appears. Figure 3.5 is an example of the Utilities menu.

Figure 3.5 Utilities Menu

LSI53C875

Adapter Setup
Device Selections
Help
Exit this menu

Choose Adapter Setup to view and change the selected adapter settings.
Choose Device Selections to view and change settings for the devices
attached to the selected adapter.

Starting the SCSI BIOS Configuration Utility 3-7

You are returned to this menu after making changes to the configuration
of any host adapter or connected SCSI device. Before you exit this menu,
you are prompted to save or cancel any changes.

3.2.2.1 Adapter Setup Menu

When you select Adapter Setup, the Adapter Setup menu appears.

Figure 3.6 is an example of the Adapter Setup Menu.

Figure 3.6 Adapter Setup Menu

Adapter Setup

SCAM Support Off
Parity Enabled
Host SCSI ID 7
Scan Order Low to High <0..Max>
Removable Media Support None
CHS Mapping SCSI Plug & Play Mapping
Spinup Delay (sec) 2
Help
Restore Default Setup
Exit this menu

The settings in this menu are global settings that affect the selected host
adapter and all SCSI devices attached to it. One of these choices can
be selected by highlighting it and pressing Enter.

SCAM Support – The LSI Logic BIOS Version 4.xx and above supports
the SCSI Plug and Play protocol called SCAM (SCSI Configured
AutoMatically). SCAM support by default is off in adapter BIOS versions

4.09 and later for the LSI53C876 device. The user may choose to turn
this on only if the system drivers do not require SCAM off. Note that if
this BIOS is flashed onto a board with existing settings, then these
settings are not changed to reflect the new BIOS defaults. Go into the
Configuration Utility to change these settings.

3-8 Configuring the LSIU40SE

Parity – The LSI Logic PCI to SCSI host adapters always generate
parity, but some older SCSI devices do not. Therefore, you are offered
the option of disabling parity checking.

Note: When disabling parity checking, it is also necessary to

disable disconnects for all devices, as parity checking for
the reselection phase is not disabled. If a device does not
generate parity, and it disconnects, the I/O never completes
because the reselection never completes.

Host SCSI ID – This option refers to the host adapter’s SCSI ID, which
is a unique number used to identify the device on the SCSI bus.

Note: In general, it is suggested that the user not change the host

adapter ID from the default value of 7, as this gives it the
highest priority on the SCSI bus. Please also note that if
you have 8-bit SCSI devices (narrow), they cannot see host
IDs greater than 7.

Scan Order – This option allows the user to tell the SCSI BIOS and
device drivers to scan the SCSI bus from low to high (0 to max) SCSI
ID, or from high to low (max to 0) SCSI ID. If there is more than one
device on the SCSI bus, changing the scan order changes the order in
which drive letters are assigned by the system. Drive order may be
reassigned differently in systems supporting the BIOS Boot Specification
(BBS).

See the PCI Storage Device Management System SDMS 4.0 User’s
Guide, Chapter 2, “SCSI BIOS,” for additional information regarding BBS.

Note: The scan order option may conflict with operating systems

that automatically assign a drive order.

Removable Media Support – This option defines the removable media
support for a specific drive. When this option is selected, a window
appears with three choices:

• None

• Boot Drive Only

• With Media Installed

Starting the SCSI BIOS Configuration Utility 3-9

None indicates there is no removable media support whether the
drive is selected in BBS as being first, or first in scan order in
non-BBS.

Boot Drive Only provides removable media support for a removable
hard drive if it is first in the scan order.

With Media Installed provides removable media support wherever
the drive(s) actually resides.

One of these choices can be selected by highlighting it and pressing
Enter.

CHS Mapping – This option defines the cylinder head sector (CHS)
values that will be mapped onto a disk without pre-existing partition
information. SCSI Plug and Play Mapping is the default value.

To support interchange with noncompatible systems, there is another
option that can be selected by choosing CHS Mapping and then moving
the cursor to Alternate CHS Mapping.

Note: Neither of these options will have any effect after the disk

has been partitioned with the FDISK command.

To remove partitioning, two options are available:

• Reformat the disk using the Format Device option. See Section

3.2.3, “Device Selections Menu,” below.

• Use the FDISK/MBR command at the C:\ prompt, where MBR

represents master boot record.

Important: Reformatting the disk or using FDISK/MBR erases all

partitioning and data that exists. Be careful when using
either the Format utility or the FDISK/MBR command that
you target the correct disk.

After clearing the partitions and data, it is necessary to
reboot and clear memory or the old partitioning data will be
reused, thus nullifying the previous operation.

Spinup Delay (seconds) – This option allows you to stagger spinups
for a longer period of time to balance the total current load. The default
value is 2 seconds with choices between 1 and 10 seconds.

3-10 Configuring the LSIU40SE

This is a power management device designed to accommodate disk
devices that may have heavy current load during power up. If multiple
drives are being powered up simultaneously and drawing heavy current
loads, then this option staggers the spinups to limit startup current.

3.2.3 Device Selections Menu

When you select the Device Selections option, the corresponding menu
(as shown in Figure 3.7) appears.

Figure 3.7 Device Selections Menu

Device Selections 0-7

Sync Data Disc Time Scan Queue Initial

Rate Width Out Bus LUNS Tags Boot
0-Dev0 N/A 40 16 On 10 Yes Yes On No
1-Dev1 N/A 40 16 On 10 Yes Yes On No
2-Dev2 N/A 40 16 On 10 Yes Yes On No
3-Dev3 N/A 40 16 On 10 Yes Yes On No
4-Dev4 N/A 40 16 On 10 Yes Yes On No
5-Dev5 N/A 40 16 On 10 Yes Yes On No
6-Dev6 N/A 40 16 On 10 Yes Yes On No
LSI53C875 40 16 On 10 Yes Yes On No
Device Selections 8-15
Help
Exit this menu

The settings in this menu affect individual SCSI devices attached to the
selected host adapter. Changes made from this menu do not cause the
system to reboot upon exit from the SCSI BIOS Configuration Utility. To
change a value, select the required device by using the arrow keys and
press Enter. A new menu (as shown in Figure 3.8) appears providing the
options and utilities available. For example, you could select the Sync
Rate option to change the Sync Rate value of the chosen device.

Starting the SCSI BIOS Configuration Utility 3-11

Figure 3.8 Device Selections Menu (Cont.)

LSI53C875

Inside device

Sync Rate
Width
Disconnect
Read/Write I/O Timeout
Scan for Device at Boot Time
Scan for SCSI LUNs
Queue Tags
Initial Boot
Format
Verify
Help
Restore Default Setup
Exit this menu

Please review the descriptions of each option below before changing any
values.

Sync Rate (Mbytes/s) – This option defines the maximum data transfer
rate the host adapter will attempt to negotiate. The host adapter and a
SCSI device must agree to a rate they can both handle.

Width (bits) – This option defines the maximum SCSI data width the
host adapter will attempt to negotiate. The host adapter and a SCSI
device must agree to a width they can both handle. Only host adapters
that can do 16-bit data transfers have this option enabled.

3-12 Configuring the LSIU40SE

Disconnect – SCSI devices have the ability to disconnect from the
initiator during an I/O transfer. This disconnect option frees the SCSI Bus
to allow other I/O processes. This option tells the host adapter whether
or not to allow a device to disconnect. Some devices run faster with
disconnects enabled (typically newer devices), while some run faster with
disconnects disabled (typically older devices).

Read/Write I/O Time-out (seconds) – This option sets the amount of
time the host adapter waits for a read, write, or seek command to
complete before trying the I/O transfer again. Since this provides a
safeguard allowing the system to recover if an I/O operation fails, it is
recommended that you always set the time-out to a value greater than
zero.

Note: If the time-out is set to zero, then the I/O will never time-out.

Scan for Device at Boot Time – Set this option to No if there is a
device that you do not want to be available to the system. Also, on a bus
with only a few devices attached, you can speed up boot time by
changing this setting to No for all unused SCSI IDs.

Scan for SCSI Logical Units (LUNs) – Set this option to No if problems
arise with a device that responds to all LUNs whether they are occupied
or not. For example, if there is a SCSI device with multiple LUNs but you
do not want all of those LUNs to be available to the system, then set this
option to No. This will limit the scan to LUN 0 only.

Queue Tags – This option allows the user to enable or disable the
issuing of queue tags during I/O requests when your device driver can
do this.

Initial Boot – This option allows any device attached to the first adapter
to become the boot device. It provides the users of non-BBS personal
computers with some of the flexibility of a BBS machine.

Format Device – If enabled, this option allows the user to low-level
format a magnetic disk drive. Low-level formatting will completely and
irreversibly erase all data on the drive. Formatting will default the drive to
a 512-byte sector size even if the drive had previously been formatted to
another sector size.

Starting the SCSI BIOS Configuration Utility 3-13

Verify – This option allows the user to read all the sectors on a disk
looking for errors. When selected, this option displays the following
message:

Verify all sectors on the device

Press ESC to abort
Else press any key to continue

Help – This option brings up a help screen with information about the
current menu.

Restore Default Setup – This option resets all device selections back
to their default settings. Select this option to restore all manufacturing
defaults for the specified adapter. Note that all user customized options
will be lost upon saving after restoring default setup.

Exit this menu – This option allows you to leave the current menu and
return to the previous screen.

3.3 Exiting the SCSI BIOS Configuration Utility

Since some changes only take effect after the system reboots, it is
important that you exit from this Configuration Utility properly. Return to
the Main menu and exit using the Quit option.

Important: Rebooting the system without properly exiting from this

utility may cause some changes to not take effect.

3-14 Configuring the LSIU40SE

Appendix A
Technical
Specifications

This section discusses the physical environment associated with the
LSIU40SE. It includes a mechanical drawing of this board, which is
shown in Figure A.1. It also includes these topics:

• Section A.1, “Physical Environment,” page A-1

• Section A.2, “Operational Environment,” page A-3

A.1 Physical Environment

This section discusses the physical, electrical, thermal, and safety
characteristics of the LSIU40SE. Additionally, this board is compliant with
electromagnetic standards set by the FCC.

A.1.1 Physical Characteristics

The dimensions of the LSIU40SE are 190 x 96.52 mm (7.50 x 3.80
inches). PCI connection is made through edge connector J1.

Internal 16-bit SCSI connection is made through the 68-pin high density
connectors J2 or J6. Internal 8-bit SCSI connection is made through the
50-pin low density connectors J4 or J8. External SCSI connection is
made through the 68-pin VHDCI connectors J3 or J7. The J3 and J7
connectors extend through the ISA/EISA bracket, which is attached to
the face of the connector outside the cabinet where the LSIU40SE is
installed.

The bracket is a standard ISA type with a cutout to accommodate the
connectors. The J5 and J9 connectors are for connecting the computer’s
Busy LED. It is a 4-pin one row right-angle header wired in parallel with
the on-board LED. The component height on the top and bottom of the
board follows the PCI Local Bus Specification Revision 2.1 standard.

LSIU40SE Dual Channel PCI to Ultra SCSI Host Adapter A-1

Figure A.1 LSIU40SE Mechanical Drawing

190.50(REF) (7.50(REF))

J2

J3

96.52(REF) (3.80(REF))

J7

J4

TERMPWR
Fail LED

LSI53C876

All dimensions are given in mm and inches.

A.1.2 Electrical Characteristics

The LSIU40SE maximum power requirements, including SCSI
TERMPWR, under normal operation are as follows:

J1

J5

U1

NVRAM

J6

J8

NVRAM

TP9

TERMPWR
Fail LED

FLASH
EEPROM

J9

U2

+5 V DC 5% 1.5 A Over the operating range 0–55 ˚C
+12 V 0.6 V 50 mA Over the operating range 0–55 ˚C
+3.3 V 0

.3 V 130 mA Over the operating range 0–55 ˚C

Under abnormal conditions such as a short on SCSI TERMPWR, + 5 V
current may be higher. At temperatures of at least 25 ˚C a current of 4 A
is sustained no longer than 30 seconds before the self-resetting
TERMPWR short circuit protection device opens.

The PCI PRSNT1/ and PRSNT2/ pins are set to indicate a 15 W maximum
configuration.

A-2 Technical Specifications

when operating in a 3.3 V PCI slot

A.1.3 Thermal, Atmospheric Characteristics

The board is designed to operate in an environment defined by the
following parameters:

• Temperature range: 0 ˚C to 55 ˚C (dry bulb)

• Relative humidity range: 0% to 90% noncondensing

• Maximum dew point temperature: 32 ˚C

A.1.4 Electromagnetic Compliance

The board is designed and implemented to minimize electromagnetic
emissions, susceptibility, and the effects of electromagnetic discharge.
The board meets the requirements of FCC and CISPR Class B limits and
is marked with the FCC Self Certification logo. It also carries the CE
mark.

A.1.5 Safety Characteristics

The bare board meets or exceeds the requirements of UL flammability
rating 94 V0. The bare board is also marked with the supplier’s name or
trademark, type, and UL flammability rating. Since this board is installed
in a PCI bus slot, all voltages are below the SELV 42.4 V limit.

A.2 Operational Environment

The LSIU40SE is designed for use in PCI computer systems with an
ISA/EISA bracket type. The LSI Logic SDMS software operates the
board, but the design of the board does not prevent the use of other
software.

A.2.1 The PCI Interface

The PCI interface operates as a 32-bit DMA bus master. The connection
is made through edge connector J1, which provides connections on both
the front and back of the board. The signal definitions and pin numbers
conform to the PCI Local Bus Specification Revision 2.1 standard.

Table A.1 and T ab leA.2 show the signal assignments.

Operational Environment A-3

Note: The + 3.3 V pins are tied together and decoupled with high

frequency bypass capacitors to ground. No current from

these 3.3 V pins is used on the board. The PCI portion of

the LSI53C876 chip is powered from the 3 V/5 V pins.

Table A.1 PCI Connector J1 (Front)

Signal Name Pin Signal Name Pin Signal Name Pin

−12 V 1 GND 22 +3.3 V 43
TCK 2 AD27 23 C_BE1/ 44
GND 3 AD25 24 AD14 45
TDO 4 +3.3 V 25 GND 46
+5 V 5 C_BE3/ 26 AD12 47
+5 V 6 AD23 27 AD10 48
INTB/ 7 GND 28 GND 49
INTD/ 8 AD21 29 KEYWAY 50
GND (PRSNT1/) 9 AD19 30 KEYWAY 51
RESERVED 10 +3.3 V 31 AD08 52
GND (PRSNT2/) 11 AD17 32 AD07 53
KEYWAY 12 C_BE2/ 33 +3.3 V 54
KEYWAY 13 GND 34 AD05 55

1

RESERVED 14 IRDY/ 35 AD03 56
GND 15 +3.3 V 36 GND 57
CLK 16 DEVSEL/ 37 AD01 58
GND 17 GND 38 3 V/5 V 59
REQ/ 18
3 V/5 V 19 PERR/ 40 +5 V 61
AD31 20 +3.3 V 41 +5 V 62
AD29 21 SERR/ 42

1. Shaded signals are not connected.

A-4 Technical Specifications

LOCK/ 39 ACK64/ 60

Table A.2 PCI Connector J1 (Back)

Signal Name Pin Signal Name Pin Signal Name Pin

TRST/ 1 AD28 22 PAR 43
+12 V 2 AD26 23 AD15 44
TMS 3 GND 24 +3.3 V 45
TDI 4 AD24 25 AD13 46
+5 V 5 IDSEL 26 AD11 47
INTA/ 6 +3.3 V 27 GND 48
INTC/ 7 AD22 28 AD09 49
+5 V 8 AD20 29 KEYWAY 50
RESERVED 9 GND 30 KEYWAY 51
3 V/5 V 10 AD18 31 C_BE0/ 52
RESERVED 11 AD16 32 +3.3 V 53
KEYWAY 12 +3.3 V 33 AD06 54
KEYWAY 13 FRAME/ 34 AD04 55

1

RESERVED 14 GND 35 GND 56
RST/ 15 TRDY/ 36 AD02 57
3 V/5 V 16 GND 37 AD00 58
GNT/ 17 STOP/ 38 3 V/5 V 59
GND 18 +3.3 V 39 REQ64/ 60
RESERVED 19 SDONE 40 +5 V 61
AD30 20
+3.3 V 21 GND 42

1. Shaded signals are not connected.

Operational Environment A-5

SBO/ 41 +5 V 62

A.2.2 The SCSI Interface

The SCSI interface operates as 8-bit or 16-bit, synchronous or
asynchronous, SE bus, and supports SCSI-2 protocols and 16-bit
arbitration. The interface is made through connectors J2, J3 and J4 for
channel A. Channel B connectors are J6, J7, and J8. Connectors J2 and
J6 are 68-pin high density right-angle receptacles for internal
connections. Connectors J3 and J7 are 68-pin VHDCI right-angle
receptacles that protrude through the back panel bracket. Connectors J4
and J8 are 50-pin low density vertical shrouded headers used for internal
SCSI connections.

Note: Up to two (and only two) connections are allowed on each

Active SE SCSI termination is provided automatically. SCSI termination
power is also supplied by the board. TableA.3 and T ab leA.4 show the
signal assignments for J2/J6, J3/J7, and J4/J8.

channel. Connecting to all three connectors on a channel

will result in an unreliable configuration.

A-6 Technical Specifications

Table A.3 SCSI Connectors J2/J6 and J3/J7

Signal Name Pin Signal Name Pin Signal Name Pin

GND 1 GND 24 SD7/ 47
GND 2 GND 25 SDP/ 48
GND 3 GND 26 GND 49
GND 4 GND 27 CPRSNT_A-B/
GND 5 GND 28 TERMPWR 51
GND 6 GND 29 TERMPWR 52
GND 7 GND 30 N/C 53
GND 8 GND 31 GND 54
GND 9 GND 32 SATN/ 55
GND 10 GND 33 GND 56

1

50

GND 11 GND (J2/J6)

34 SBSY/ 57
GND/16CBLSNS
(J3/J7)

GND 12 SD12/ 35 SACK/ 58
GND 13 SD13/ 36 SRST/ 59
GND 14 SD14/ 37 SMSG/ 60
GND 15 SD15/ 38 SSEL/ 61
GND 16 SDP1/ 39 SC_D/ 62
TERMPWR 17 SD0/ 40 SREQ/ 63
TERMPWR 18 SD1/ 41 SI_O/ 64
N/C 19 SD2/ 42 SD8/ 65
GND 20 SD3/ 43 SD9/ 66
GND 21 SD4/ 44 SD10/ 67
GND 22 SD5/ 45 SD11/ 68
GND 23 SD6/ 46

1. CPRSNT_A/ (J2/J6) and CPRSNT_B/ (J3/J7) are used to sense the
connection of a standard SCSI device by sensing SCSI standard GND on this
pin.

Operational Environment A-7

Table A.4 SCSI Connectors J4/J8

Signal Name Pin Signal Name Pin

GND 1 SD0/ 2
GND 3 SD1/ 4
GND 5 SD2/ 6
GND 7 SD3/ 8
GND 9 SD4/ 10
GND 11 SD5/ 12
GND 13 SD6/ 14
GND 15 SD7/ 16
GND 17 SDP/ 18
GND 19 GND 20
GND 21 CPRSNT_C/
N/C 23 N/C 24
N/C 25 TERMPWR 26
N/C 27 N/C 28

1

22

GND 29 GND 30
GND 31 SATN/ 32
GND 33 GND 34
GND 35 SBSY/ 36
GND 37 SACK/ 38
GND 39 SRST/ 40
GND 41 SMSG/ 42
GND 43 SSEL/ 44
GND 45 SC_D/ 46
GND 47 SREQ/ 48
GND 49 SI_O/ 50

1. CPRSNT_C/ is used to sense the connection of a standard
SCSI device by sensing SCSI standard GND on this pin.

A-8 Technical Specifications

A.2.3 The LED Interface

The LED interface on the LSIU40SE is a four-wire arrangement that
allows the user to connect an LED harness to the board. The
GPIO0_FETCH line (maximum output low voltage 0.4 V and minimum
output low current 16 mA) is pulled low to complete the circuit when a
harness with an LED is attached. The connectors on the LSIU40SE are
J5 and J9.

Table A.5 LED Connectors J5/J9

Signal Name Pin

LED+ 1
LED− 2
LED− 3
LED+ 4

Operational Environment A-9

A-10 Technical Specifications

Appendix B
Glossary of Terms and
Abbreviations

Address A specific location in memory, designated either numerically or by a

symbolic name.

Asynchronous
Data Transfer

BIOS Basic Input/Output System. Software that provides basic read/write

Bit A binary digit. The smallest unit of information a computer uses. The

Bus A collection of unbroken signal lines across which information is

Bus Mastering A high-performance way to transfer data. The host adapter controls the

Byte A unit of information consisting of eight bits.

A method of transmission which does not require a common clock, but
separates fields of data by stop and start bits. It is slower than
synchronous data transfer.

capability. Usually kept as firmware (ROM based). The system BIOS on
the mainboard of a computer is used to boot and control the system. The
SCSI BIOS on the host adapter acts as an extension of the system
BIOS.

value of a bit (0 or 1) represents a two-way choice, such as on or off,
true or false, and so on.

transmitted from one part of a computer system to another. Connections
to the bus are made using taps on the lines.

transfer of data directly to and from system memory without bothering
the computer’s microprocessor. This is the fastest way for multitasking
operating systems to transfer data.

Chain A topology in which every processor is connected to two others, except

for two end processors that are connected to only one other.

CISPR A special international committee on radio interference (Committee,

International and Special, for Protection in Radio).

LSIU40SE Dual Channel PCI to Ultra SCSI Host Adapter B-1

Configuration Refers to the way a computer is set up; the combined hardware

components (computer, monitor, keyboard, and peripheral devices) that
make up a computer system; or the software settings that allow the
hardware components to communicate with each other.

CPU Central Processing Unit. The “brain” of the computer that performs the

actual computations. The term Microprocessor Unit (MPU) is also used.

DMA Direct Memory Access. A method of moving data from a storage device

directly to RAM, without using the CPU’s resources.

DMA Bus
Master

A feature that allows a peripheral to control the flow of data to and from
system memory by blocks, as opposed to PIO (Programmed I/O) where
the processor is in control and the flow is by byte.

Device Driver A program that allows a microprocessor (through the operating system)

to direct the operation of a peripheral device.

Differential A hardware configuration for connecting SCSI devices. It uses a pair of

lines for each signal transfer (as opposed to Single-Ended SCSI which
references each SCSI signal to a common ground).

Dword A double word is a group of four consecutive bytes or characters that are

stored, addressed, transmitted, and operated on as a unit. The lower two
address bits of the least significant byte must equal zero in order to be
dword aligned.

EEPROM Electronically Erasable Programmable Read Only Memory. A memory

chip typically used to store configuration information. See NVRAM.

EISA Extended Industry Standard Architecture. An extension of the 16-bit ISA

bus standard. It allows devices to perform 32-bit data transfers.

External SCSI
Device

A SCSI device installed outside the computer cabinet. These devices are
connected in a continuous chain using specific types of shielded cables.

Fast SCSI A standard for SCSI data transfers. It allows a transfer rate of up to

10 Mbytes/s over an 8-bit SCSI bus and up to 20 Mbytes/s over a 16-bit
SCSI bus.

FCC Federal Communications Commission.
File A named collection of information stored on a disk.

B-2 Glossary of Terms and Abbreviations

Firmware Software that is permanently stored in ROM. Therefore, it can be

accessed during boot time.

Hard Disk A disk made of metal and permanently sealed into a drive cartridge. A

hard disk can store very large amounts of information.

Host The computer system in which a SCSI host adapter is installed. It uses

the SCSI host adapter to transfer information to and from devices
attached to the SCSI bus.

Host Adapter A circuit board or integrated circuit that provides a SCSI bus connection

to the computer system.

Internal SCSI
Device

A SCSI device installed inside the computer cabinet. These devices are
connected in a continuous chain using an unshielded ribbon cable.

IRQ Interrupt Request Channel. A path through which a device can get the

immediate attention of the computer’sCPU. The PCI bus assigns an IRQ
path for each SCSI host adapter.

ISA Industry Standard Architecture. A type of computer bus used in most

PCs. It allows devices to send and receive data up to 16-bits at a time.

Kbyte Kilobyte. A measure of computer storage equal to 1024 bytes.
Local Bus A way to connect peripherals directly to computer memory. It bypasses

the slower ISA and EISA buses. PCI is a local bus standard.

Logical Unit A subdivision, either logical or physical, of a SCSI device (actually the

place for the device on the SCSI bus). Most devices have only one
logical unit, but up to eight are allowed for each of the eight possible
devices on a SCSI bus.

LUN Logical Unit Number. An identifier, zero to seven, for a logical unit.
Mbyte Megabyte. A measure of computer storage equal to 1024 kilobytes.
Mainboard A large circuit board that holds RAM, ROM, the microprocessor, custom

integrated circuits, and other components that make a computer work. It
also has expansion slots for host adapters and other expansion boards.

Main Memory The part of a computer’s memory which is directly accessible by the CPU

(usually synonymous with RAM).

B-3

Motherboard See Mainboard. In some countries, the term Motherboard is not

appropriate.

Multitasking The executing of more than one command at the same time. This allows

programs to operate in parallel.

Multithreading The simultaneous accessing of data by more than one SCSI device. This

increases the data throughput.

NVRAM NonVolatile Random Access Memory. Actually an EEPROM

(Electronically Erasable Programmable Read Only Memory chip) used to
store configuration information. See EEPROM.

Operating
System

A program that organizes the internal activities of the computer and its
peripheral devices. An operating system performs basic tasks such as
moving data to and from devices, and managing information in memory.
It also provides the user interface.

Parity Checking A way to verify the accuracy of data transmitted over the SCSI bus. One

bit in the transfer is used to make the sum of all the 1 bits either odd or
even (for odd or even parity). If the sum is not correct, an error message
appears.

PCI Peripheral Component Interconnect. A local bus specification that allows

connection of peripherals directly to computer memory. It bypasses the
slower ISA and EISA buses.

Peripheral
Devices

A piece of hardware (such as a video monitor, disk drive, printer, or
CD-ROM) used with a computer and under the computer’s control. SCSI
peripherals are controlled through a SCSI host adapter.

Pin-1
Orientation

The alignment of pin 1 on a SCSI cable connector and the pin-1 position
on the SCSI connector into which it is inserted. External SCSI cables are
always keyed to ensure proper alignment, but internal SCSI ribbon
cables are sometimes not keyed.

PIO Programmed Input/Output. A way the CPU can transfer data to and from

memory using the computer’s I/O ports. PIO is usually faster than DMA,
but requires CPU time.

Port Address Also Port Number. The address through which commands are sent to a

host adapter board. This address is assigned by the PCI bus.

Port Number See Port Address.

B-4 Glossary of Terms and Abbreviations

Queue Tags A way to keep track of multiple commands that allows for increased

throughput on the SCSI bus.

RAM Random Access Memory. The computer’s primary working memory in

which program instructions and data are stored and are accessible to the
CPU. Information can be written to and read from RAM. The contents of
RAM are lost when the computer is turned off.

RISC Core LSI Logic SCSI chips contain a RISC (Reduced Instruction Set

Computer) processor, programmed through microcode scripts.

ROM Read Only Memory. Memory from which information can be read but not

changed. The contents of ROM are not erased when the computer is
turned off.

SCAM SCSI Configured AutoMatically. A method to automatically allocate SCSI

IDs using software when SCAM compliant SCSI devices are attached.

Scatter/Gather A device driver feature that lets the host adapter modify a transfer data

pointer so that a single host adapter transfer can access many segments
of memory. This minimizes interrupts and transfer overhead.

SCSI Small Computer System Interface. A specification fora high-performance

peripheral bus and command set. The original standard is referred to as
SCSI-1.

SCSI-2 The current SCSI specification which adds features to the original

SCSI-1 standard.

SCSI-3 The next SCSI specification, which adds features to the SCSI-2 standard.

Although this version is still in development, parts of the SCSI-3 standard
are already in use.

SCSI Bus A host adapter and one or more SCSI peripherals connected by cables

in a linear chain configuration. The host adapter may exist anywhere on
the chain, allowing connection of both internal and external SCSI
devices. A system may have more than one SCSI bus by using multiple
host adapters.

SCSI Device Any device that conforms to the SCSI standard and is attached to the

SCSI bus by a SCSI cable. This includes SCSI host adapters and SCSI
peripherals.

B-5

SCSI ID A way to uniquely identify each SCSI device on the SCSI bus. Each

SCSI bus has eight available SCSI IDs numbered 0 through 7 (or 0
through 15 for Wide SCSI). The host adapter usually gets ID 7 giving it
priority to control the bus.

SDMS Storage Device Management System. An LSI Logic software product that

manages SCSI system I/O.

STA SCSI Trade Association. A group of companies that cooperate to

promote SCSI parallel interface technology as a viable mainstream I/O
interconnect for commercial computing.

Single-Ended
SCSI

A hardware specification for connecting SCSI devices. It references each
SCSI signal to a common ground. This is the most common method (as
opposed to differential SCSI which uses a separate ground for each
signal).

Synchronous
Data Transfer

One of the ways data is transferred over the SCSI bus. Transfers are
clocked with fixed frequency pulses. This is faster than asynchronous
data transfer. Synchronous data transfers are negotiated between the
SCSI host adapter and each SCSI device.

System BIOS Controls the low-level POST (Power-On Self-Test), and basic operation

of the CPU and computer system.

Termination The electrical connection required at each end of the SCSI bus,

composed of a set of resistors. It improves the integrity of bus signals.

Ultra SCSI A standard for SCSI data transfers. It allows a transfer rate of up to

20 Mbytes/s over an 8-bit SCSI bus and up to 40 Mbytes/s over a 16-bit
SCSI bus. STA (SCSI Trade Association) supports using the term “Ultra
SCSI” over the term “Fast-20”.

VCCI Voluntary Control Council for Interference.
Virtual Memory Space on a hard disk that can be used as if it were RAM.
VHDCI Very High Density Cable Interconnect. A trapezoidal shielded connector

that has a 0.8 mm pitch.

Wide SCSI A SCSI-2 feature allowing 16-bit or 32-bit transfers on the SCSI bus. This

dramatically increases the transfer rate over the standard 8-bit SCSI bus.

Word A two byte (or 16-bit) unit of information.

B-6 Glossary of Terms and Abbreviations

Index

A

active termination

single-ended SCSI 1-3, A-6

adapter setup menu

CHS mapping 3-10
example 3-8
host SCSI ID 3-9
parity 3-9
removable media support 3-9
SCAM support 3-8
scan order 3-9
spinup delay 3-10

additional adapter

configuring 3-6
alternate CHS mapping 3-10
autotermination

enabled/disabled 2-20 to 2-23

scheme 2-8

B

BIOS support

for the LSIU40SE board 1-1
board characteristics

LSIU40SE dimensions A-1

LSIU40SE host adapter 1-2
boot order menu

changing an adapter’s boot order 3-5

example 3-5

removing an adapter’s boot order 3-5

setting the boot order 3-5

C

cable detection simulation 2-24
chained connection 2-12, 2-18
change status on next boot menu

example 3-5
changing the default configuration

SCSI host adapters 3-2
channel switches

incurring improper termination 2-8

settings 2-24
check list

verifying installation procedure 2-28
choosing the mono/color setting 3-6
completing the LSIU40SE installation 2-28
connecting the SCSI peripherals 2-6
connectors

high density 1-3, A-1, A-6

LED interface A-9
low density 1-3, A-1, A-6

D

detailed installation procedure 2-3 to 2-6
device default settings table 3-2
device selections menu

disconnect 3-13
exiting 3-14
format device 3-13
initial boot 3-13
queue tags 3-13
read/write I/O time-out 3-13
restore default setup 3-14
scan for device at boot time 3-13
scan for SCSI logical units 3-13
sync rate 3-12
verify 3-14
width 3-12

device termination

external SCSI device connections 2-21
internal & external SCSI device connections 2-22
internal SCSI device connections 2-20

to both internal connectors 2-23
disconnect option 3-13
display mode

main menu option 3-6
DMA bus master 1-2
duplication of SCSI IDs 2-26

E

electrical characteristics A-2
electromagnetic compliance A-3
Esc

main menu option 3-7
Ext68 channel switch (switch 4) 2-24
external SCSI bus connections

making 2-16 to 2-18

F

FDISK/MBR command

removing partition 3-10
features

LSIU40SE board 1-2
Flash BIOS 1-1
format device option

low-level formatting 3-13

removing partitions/data 3-10
front panel LED 2-15

LSIU40SE Dual Channel PCI to Ultra SCSI Host Adapter IX-1

G

global default settings table 3-1
GPIO0_FETCH line

maximum/minimum output A-9

H

help option

device selections menu 3-14
main menu 3-7

high density connectors

68-pin 1-3, A-1, A-6

Host SCSI ID 3-9

I

initial boot option 3-13
inserting the host adapter 2-4 to 2-6
installation procedure

check list 2-28

detailed setup instructions 2-3
Int50 channel switch (switch 1) 2-24
Int68 channel switch (switch 2) 2-24
interface descriptions 1-3
internal SCSI bus connections

making 2-9 to 2-15
interrupts

setting 2-27

J

jumper

setting interrupts 2-27

setting peripheral device SCSI IDs 2-26

L

language option

main menu 3-7
LED cable 2-15
LED connectors J5/J9 A-9
LED interface A-9
low density connectors

50-pin 1-3, A-1, A-6
low voltage

GPIO0_FETCH line A-9
LSI53C876 PCI to Ultra SCSI I/O Processor chip 1-3, A-4
LSIU40SE host adapter

40 MHz oscillator 1-4

active termination 1-3, A-6

BIOS support 1-1

board characteristics 1-2

channel switches 1-4, 2-24

description 1-3

dimensions A-1

electrical characteristics A-2

electromagnetic compliance A-3

features 1-2

LED interface A-9

NVRAM 3-2

PCI interface 1-3

safety characteristics A-3

SCSI bus termination 2-19

SCSI interface 1-3

SDMS software 1-1, A-3
setting interrupts 2-27
shielded cable connectors 2-7
supporting Ultra SCSI protocols 1-4
thermal, atmospheric characteristics A-3
UL flammability rating A-3

M

main menu

adapter boot order option 3-5
additional adapter configuration option 3-6
change adapter status option 3-5
display mode option 3-6
Esc option 3-7
help option 3-7
language option 3-7
mono/color option 3-6
quit option 3-7

N

NVRAM (nonvolatile random access memory) 3-2

O

operational environment A-3

P

parity

disabling 3-9

PCI bus

high-speed standard local bus 1-3
rerouting to INTA/ 2-27

routing INTB/ 2-27
PCI Interface 1-2, 1-3, A-3
PCI local bus specification 1-3, A-3
peripheral device SCSI IDs

setting with jumpers 2-26
peripheral device terminators 2-19
power management device 3-11
power requirements

LSIU40SE board A-2

Q

queue tags option 3-13
quit option

main menu 3-7

R

ribbon cable 2-6

S

safety characteristics A-3
SCAM support 3-8
scan for device at boot time 3-13
scan for SCSI logical units 3-13
scan order 3-9
SCSI BIOS configuration utility

changing adapter status 3-5

IX-2 Index

configuring an adapter 3-6
exiting 3-14
mono/color option 3-6
pressing "Ctrl-A" to re-enable controllers 3-3
quit option 3-7
selecting an adapter 3-3

starting 3-2
SCSI bus connections 2-6
SCSI bus termination

LSIU40SE board 2-19 to 2-23
SCSI cables

internal/external connectors 2-7
SCSI IDs 2-26
SCSI Interface 1-2, 1-3, A-6
SCSI Peripherals 2-6
setting interrupts 2-27
Setting SCSI IDs 2-26
signal assignments

PCI interface A-3

SCSI interface A-6
spinup delay 3-10
Storage Device Management System 1-1, A-3
switches

providing cable detection simulation 2-24
sync rate 3-12

T

termination

erroneous 2-19

external SCSI device connections 2-21

improper assignment of switches 2-8

internal & external SCSI device connections 2-22

internal SCSI device connections 2-20

override switches U1 or U2 2-23

SCSI bus 2-19 to 2-23

to both internal connectors 2-23
TERMPWR

power requirements A-2

short condition A-2

termination power 1-4
terse setting 3-6
thermal, atmospheric characteristics A-3
TP9 jumper 2-27

V

verbose setting 3-6
verify option 3-14
VHDCI connectors

68-pin 1-3, 2-16, A-1

U

U1 or U2 switches

overriding termination 2-23
UL flammability rating

LSIU40SE board A-3
Ultra SCSI

allowing faster synchronous data transfers 1-4

cable connections 2-7
upper term channel switch (switch 3) 2-24
utilities menu

adapter setup option 3-8 to 3-11

device selections option 3-11 to 3-14

example 3-7

exiting 3-8

Index IX-3

IX-4 Index

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