LSI LSI8751D User manual

®
LSI8751D
PCI to SCSI
Host Adapter
USER’S
GUIDE
August 2001
Version 3.0

ii
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 responsible for any radio or television interference caused by unauthorized modification 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 LSI8751D 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

iii
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 DB15-000102-03, Fourth Edition (August 2001)
This document describes LSI Logic Corporation’s LSI8751D PCI to 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 © 2001 by LSI Logic Corporation. All rights reserved.
TRADEMARK ACKNOWLEDGMENT
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.
MH
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

iv

Preface v
Preface
This book is the primary reference and user’s guide for the LSI Logic
LSI8751D PCI to SCSI Host Adapter. It describes how to install and
configure the LSI8751D in a PCI computer system. Basic information on
setting up the SCSI bus is also provided.
LSI Logic Technical Support
The entire LSI Logic host adapter solution is designed for ease of use.
However, if you require additional assistance, please contact the LSI
Logic Technical Support Hot Line at [phone]. The hours of
operation are from 7:30 a.m. to 4:30 p.m. (MST), Monday through Friday.
Before calling, please have the following information:
•Which LSI Logic host adapter are you installing?
•What system are you installing into?
•What SCSI devices are you connecting to the bus?
•How is your system configured?
It is also helpful if you are at your system when you call.
Organization
This document has the following chapters and appendixes:
•Chapter 1, Describing the LSI8751D, defines the interfaces and
characteristics of the LSI8751D.
•Chapter 2, Installing the LSI8751D, provides both quick and
detailed installation instructions.

vi Preface
•Chapter 3, Technical Specifications, describes the physical and
operational environments of the LSI8751D.
•Appendix A, Glossary of Terms and Abbreviations, provides
definitions of various terminology that is referenced throughout this
user’s guide.
Related Publications
PCI Storage Device Management System SDMS 4.0 User’s Guide,
Order Number S14007.A
Revision Record
Revision Date Remarks
1.0 6/95 Final version.
2.0 3/99 Document converted to LSI format.
2.1 11/00 All product names changed from SYM to LSI.
3.0 8/01 Updated Table 3.4 SCSI Connector J2 and J3; Removed the chapter about
the SCSI BIOS Configuration Utility; Moved Appendix A to Chapter 3. Other
minor updates made to installation instructions in Chapter 2.

Contents i
Contents
Chapter 1 Describing the LSI8751D
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 1-3
1.2.4 Ultra SCSI 1-3
Chapter 2 Installing the LSI8751D
2.1 Quick Installation Procedure 2-1
2.2 Detailed Installation Procedure 2-2
2.2.1 Before You Start 2-2
2.2.2 Inserting the Host Adapter 2-3
2.2.3 Connecting the SCSI Peripherals 2-5
2.2.4 SCSI Bus Termination 2-14
2.2.5 Setting SCSI IDs 2-19
2.3 Completing the Installation 2-21
Chapter 3 Technical Specifications
3.1 Physical Environment 3-1
3.1.1 Physical Characteristics 3-1
3.1.2 Electrical Characteristics 3-2
3.1.3 Thermal, Atmospheric Characteristics 3-3
3.1.4 Electromagnetic Compliance 3-3
3.1.5 Safety Characteristics 3-3
3.2 Operational Environment 3-3
3.2.1 The PCI Interface 3-3
3.2.2 The SCSI Interface 3-5
3.2.3 The LED Interface 3-6

ii Contents
Appendix A Glossary of Terms and Abbreviations
Customer Feedback

iii
Figures 2.1 Hardware Connections for the LSI8751D 2-3
2.2 Inserting the Host Adapter 2-4
2.3 SCSI Cables 2-6
2.4 Internal SCSI Ribbon Cable to Host Adapter Connection 2-7
2.5 Internal SCSI Ribbon Cable to Internal SCSI Device
Connection 2-8
2.6 Connecting Additional Internal SCSI Devices 2-8
2.7 Multiple Internal SCSI Devices Chained Together 2-9
2.8 SCSI LED Connector 2-10
2.9 External Cable to Host Adapter 2-11
2.10 External Cable to External SCSI Device 2-12
2.11 Multiple External SCSI Devices Chained Together 2-13
2.12 Internal SCSI Device Termination 2-15
2.13 External SCSI Device Termination 2-16
2.14 Internal and External SCSI Device Termination 2-18
3.1 LSI8751D Mechanical Drawing 3-2

iv

v
Tables 2.1 SCSI Bus Widths and Speeds 2-5
2.2 SCSI ID Record 2-20
3.1 Maximum Power Requirements 3-2
3.2 PCI Connector JI (Top) 3-4
3.3 PCI Connector JI (Bottom) 3-5
3.4 SCSI Connectors J2 and J3 3-6
3.5 LED Connector J4 3-6

vi

LSI8751D PCI to SCSI Host Adapter 1-1
Chapter 1
Describing the
LSI8751D
This chapter describes how the LSI8751D PCI to SCSI Host Adapter
interfaces to PCI computer systems and includes these topics:
•Section 1.1, “General Description,” page 1-1
•Section 1.2, “Features,” page 1-2
1.1 General Description
The LSI8751D provides a SCSI-3, Ultra SCSI interface to PCI computer
systems. Installing this adapter in your PCI system allows you to connect
SCSI devices over a SCSI bus.
The LSI8751D is a 16-bit, High Voltage Differential (HVD), Ultra SCSI
solution for your computer, using only one PCI slot. This board can
support both legacy Fast SCSI devices and the newest Ultra SCSI
devices. It is also backward compatible with the existing LSI8251D host
adapter.
The Storage Device Management System (SDMS™) software operates
the board, but the design of the board does not prevent other software
from being written and used with it.
This guide and the PCI Storage Device Management System SDMS 4.0
User’s Guide contain product information and installation instructions.
This information helps you gain the full benefits of the LSI8751D for your
computer system.

1-2 Describing the LSI8751D
1.2 Features
This section provides an overview of the PCI interface, the SCSI
interface, and board characteristics for the LSI8751D.
BIOS support for this host adapter is incorporated on the board in an
8 x 64 Kbytes Flash BIOS.
1.2.1 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 LSI8751D is contained within the
LSI53C875J PCI to SCSI I/O Processor chip. The LSI53C875J connects
directly to the PCI bus and generates timing protocol that complies with
the PCI specification.
The PCI interface on the LSI8751D supports these features:
•Full 32-bit DMA bus master
•Zero wait-state bus master data bursts
•Universal 5 V or 3.3 V PCI bus voltage
•PCI Local Bus Specification, Revision 2.1 compliance
1.2.2 SCSI Interface
The SCSI functionality for the LSI8751D is contained within the LSI53875
controller chip. The LSI53C875 connects directly to the SCSI bus and
generates timing and protocol in compliance with the SCSI standard.
The SCSI interface on the LSI8751D operates as a 16-bit, synchronous
or asynchronous, HVD bus, and supports Ultra SCSI protocols and 16-
bit arbitration. The LSI8751D provides HVD SCSI termination as a
pluggable terminator. This terminator plugs into either the internal or
external 68-pin high density connector (J2 or J3).
The SCSI interface for this board supports these features:
•16-bit HVD
•External plug-in termination supplied with board

Features 1-3
•68-pin high density external dual connector
•68-pin high density internal dual connector
•Fast and Ultra SCSI data transfer capability
•SCSI termination power (TERMPWR) source with autoresetting
circuit breaker
•Flash EEPROM for BIOS storage
•Serial NonVolatile Random Access Memory (NVRAM) for user
configuration utility.
•SCSI activity LED connector
1.2.3 Board Characteristics
The board characteristics are
•PCI host adapter dimensions –
5.00 x 3.25 inches (127 X82.552 mm)
•Universal 32-bit card edge connector
1.2.4 Ultra SCSI
The LSI8751D has full support for Ultra SCSI and simultaneously
supports Fast SCSI. 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, and you must consider the total
number of devices and the length of your SCSI bus when setting up your
system. See Section 1.2.3, “Connecting the SCSI Peripherals,” page 1-5
for a more detailed explanation of SCSI bus connections.

1-4 Describing the LSI8751D

LSI8751D PCI to SCSI Host Adapter 2-1
Chapter 2
Installing the LSI8751D
This chapter provides instructions on how to install the LSI8751D and
includes these topics:
•Section 2.1, “Quick Installation Procedure,” page 2-1
•Section 2.2, “Detailed Installation Procedure,” page 2-2
•Section 2.3, “Completing the Installation,” page 2-21
2.1 Quick Installation Procedure
This section provides quick setup instructions for the experienced
computer user with prior host adapter installation and SCSI bus setup
experience. If you prefer more detailed guidance for installing the
LSI8751D, 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 handling this host adapter board, then
remove the cabinet cover on your computer to access the PCI
slots.
Note: The use of a static ground strap is recommended.
Step 2. Remove the LSI8751D from the packing and check that it is not
damaged.
Step 3. Turn off and unplug your system.
Step 4. Open your PC cabinet.
Step 5. Locate the slots for installing a PCI plug-in board.
Step 6. Insert the LSI8751D board into the selected PCI slot.

2-2 Installing the LSI8751D
Step 7. Connect the internal and external SCSI peripherals.
Optional: Connect the LED cable on your SCSI host adapter.
Step 8. Terminate the SCSI bus.
The SCSI bus requires proper termination and no duplicate
SCSI IDs.
Step 9. Set the peripheral SCSI IDs.
Step 10. Make any configuration changes.
Step 11. Replace your PC cabinet cover.
Step 12. Plug in your computer and peripherals.
Step 13. Turn on the peripherals, and then your computer.
The host adapter installation is complete.
Refer to the PCI Storage Device Management System SDMS 4.0 User’s
Guide (or the guide for the software you will use) to load the driver
software for your particular operating system. Additionally, this guide
contains documentation about the SCSI BIOS Configuration Utility, which
provides a means to change system configuration.
2.2 Detailed Installation Procedure
This section provides step-by-step instructions for installing the
LSI8751D and connecting it to your SCSI peripherals. If you are
experienced in these tasks, you may prefer to use the instructions in the
preceding Section 2.1, “Quick Installation Procedure.”
2.2.1 Before You Start
Before starting, read through the steps defined within the detailed
installation procedure. If you are not confident that you can perform the
tasks as described in this section, LSI Logic suggests getting assistance.
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 channel on your SCSI host adapter can act as host for up to
15 peripheral devices, not including the adapter itself.

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 and perform the following steps.
Step 1. Ground yourself before handling this host adapter board.
Remove the LSI8751D from the packing and check that it is not
damaged. Figure 2.1 shows an example of this board.
Figure 2.1 Hardware Connections for the LSI8751D
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
Plug-in HVD Terminator
(Fits J2 or J3)
68-Pin External
SCSI Interface
J3
J1 to PCI
Bus Connector
on Mainboard
LED
Connector
J4
68-Pin High Density
SCSI Interface
J2

2-4 Installing the LSI8751D
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 LSI8751D requires a PCI slot which allows bus
master operation.
Step 5. Remove the blank panel on the back of the computer aligned
with the PCI slot you intend to use. Save the bracket screw.
Step 6. Carefully insert the edge connector J1 (see Figure 2.1) of the
host adapter into the PCI slot. Make sure the edge connector
is properly engaged before pressing the board into place as
shown in Figure 2.2. You may notice that the components on a
PCI host adapter face the opposite way from those on other
non-PCI adapter boards you have in your system. This is
correct, and the board is keyed to go in only one way.
Figure 2.2 Inserting the Host Adapter
Bracket Screw