LSI U160 User Manual
USER’S
GUIDE
LSIU160
PCI to Single Channel
Ultra160 SCSI
Host Adapter
Version 1.2
August 2002
®
DB15-000173-02
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 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 LSIU160 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 DB15-000173-02, Third Edition (August 2002)
This document describes the LSI Logic LSIU160 PCI to Single Channel Ultra160
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 © 2000-2002 by LSI Logic Corporation. All rights reserved.
TRADEMARK ACKNOWLEDGMENT
LSI Logic, the LSI Logic logo design, SDMS, SCRIPTS, SureLINK, TolerANT, and
LVDlink are registered trademarks or 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
LSIU160 PCI to Single Channel Ultra160 SCSI Host Adapter. It contains
a complete functional description for the LSIU160 as well as complete
physical and electrical specifications.
This document assumes that you have some familiarity with SCSI
protocol and related support devices and will benefit persons installing
and using the LSIU160.
Organization
This document has the following chapters and appendix:
• Chapter 1, Using the LSIU160, defines the interfaces and
characteristics of the LSIU160.
• Chapter 2, Installing the LSIU160, provides both quick and detailed
installation instructions.
• Chapter 3, Configuring the LSIU160, describes the SCSI BIOS
Configuration Utility to configure adapter and device settings.
• Appendix A, Technical Specifications, describes the physical and
operational environments of the LSIU160.
• 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 System SDMS™ 4.0 User’s Guide,
Order Number S14007.A
LSI53C1010-33 PCI to Dual Channel Ultra3 SCSI Multifunction
Controller Technical Manual, Order Number S14025.C
Revision Record
Revision Date Remarks
1.0 1/00 Final version.
1.2 8/02 Product name changed from LSI8955U to LSIU160.
vi Preface
Contents
Chapter 1 Using the LSIU160
1.1 General Description 1-1
1.2 Features 1-2
1.2.1 PCI Interface 1-2
1.2.2 SCSI Interface 1-3
1.2.3 Board Characteristics 1-4
1.3 Interface Descriptions 1-5
1.3.1 The PCI Interface 1-5
1.3.2 The SCSI Interface 1-5
1.3.3 SCSI Bus Activity LED Connector 1-6
1.4 Benefits of Ultra160 SCSI 1-6
1.4.1 Cyclic Redundancy Check (CRC) 1-6
1.4.2 Asynchronous Information Protection (AIP) 1-6
1.5 Benefits of LVDlink Technology 1-7
1.6 Benefits of TolerANT®Technology 1-7
1.7 Benefits of SureLINK™ (Ultra160 SCSI Domain Validation) 1-8
Chapter 2 Installing the LSIU160
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 2-7
2.2.4 Making Internal SCSI Bus Connections 2-10
2.2.5 Making External SCSI Bus Connections 2-15
2.2.6 SCSI Bus Termination 2-18
2.2.7 Setting SCSI IDs 2-22
2.3 Completing the Installation 2-24
Contents vii
Chapter 3 Configuring the LSIU160
3.1 Overview of the SCSI BIOS Configuration Utility 3-1
3.1.1 Starting the Configuration Utility 3-2
3.1.2 Exiting the SCSI BIOS Configuration Utility 3-3
3.2 The LSI Logic SCSI BIOS Configuration Utility Menus 3-3
3.2.1 Using the Menus 3-3
3.2.2 Main Menu 3-4
3.2.3 Adapter Properties Menu 3-6
3.2.4 Device Properties Menu 3-10
3.2.5 Boot Adapter List Menu 3-15
3.2.6 Global Properties Menu 3-18
3.2.7 Exit Menu 3-20
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-4
A.2.1 The PCI Interface A-4
A.2.2 The SCSI Interface A-7
A.2.3 The SCSI Busy LED A-10
A.3 Subsystem and Subsystem Vendor ID A-10
Appendix B Glossary of Terms and Abbreviations
Index
Customer Feedback
viii Contents
Figures
2.1 Hardware Connections for the LSIU160 2-5
2.2 Inserting the Host Adapter 2-6
2.3 SCSI Cables 2-9
2.4 Internal SCSI Ribbon Cable to Host Adapter Connection 2-10
2.5 Internal SCSI Ribbon Cable to Internal SCSI Device
Connection 2-11
2.6 Connecting Additional Internal SCSI Devices 2-12
2.7 Multiple Internal SCSI Devices Chained Together 2-13
2.8 SCSI LED Connector 2-14
2.9 External Cable to Host Adapter 2-15
2.10 External SCSI Device Cable 2-16
2.11 Multiple External SCSI Devices Chained Together 2-17
2.12 Internal SCSI Device Termination 2-19
2.13 External SCSI Device Termination 2-20
2.14 Internal and External SCSI Device Termination 2-21
3.1 Main Menu 3-5
3.2 Adapter Properties Menu 3-7
3.3 Device Properties Menu (Left Half) 3-11
3.4 Device Properties Menu (Right Half) 3-12
3.5 Boot Adapter List Menu 3-16
3.6 Global Properties Menu 3-18
3.7 Exit Menu 3-20
A.1 LSIU160 Mechanical Drawing A-2
Contents ix
x Contents
Tables
2.1 SCSI Bus Widths and Speeds 2-7
2.2 SCSI Bus Lengths 2-8
2.3 SCSI ID Record 2-23
3.1 Configuration Commands 3-4
3.2 Main Menu Fields and Descriptions 3-5
3.3 Adapter Properties Fields and Descriptions 3-8
3.4 Device Properties Fields and Descriptions 3-13
3.5 Boot Adapter List Fields and Descriptions 3-17
3.6 Global Properties Fields and Descriptions 3-19
A.1 Maximum Power Requirements A-2
A.2 PCI Connector J1 (Front) A-5
A.3 PCI Connector J1 (Back) A-6
A.4 Internal SCSI Connector J4 A-8
A.5 External SCSI Connector J3 A-9
A.6 LED Connector J6 A-10
A.7 Subsystem and Subsystem Vendor ID A-10
Contents xi
xii Contents
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Chapter 1
Using the LSIU160
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This chapter describes the LSIU160 PCI to Single Channel Ultra160
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
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• Section 1.3, “Interface Descriptions,” page 1-5
• Section 1.4, “Benefits of Ultra160 SCSI,” page 1-6
• Section 1.5, “Benefits of LVDlink Technology,” page 1-7
• Section 1.6, “Benefits of TolerANT
• Section 1.7, “Benefits of SureLINK™ (Ultra160 SCSI Domain
Validation),” page 1-8
1.1 General Description
The LSIU160 provides an Ultra160 SCSI interface to PCI computer
systems. It is referred to as the LSIU160 throughout this guide. Installing
this adapter in your PCI system allows connection of up to 15 SCSI
devices.
The LSIU160 is a 16-bit, Low Voltage Differential (LVD)/Single-Ended
(SE) SCSI solution for your computer. This board supports legacy Fast
SCSI and Ultra SCSI devices, and the newest LVD Ultra160 SCSI
devices. It is also backwards compatible with existing wide SCSI
applications for the LSI8251S and LSI8751SP/E host adapters.
®
Technology,” page 1-7
The Storage Device Management System (SDMS™) software operates
the board. SCSI software provided by other vendors that works with the
LSI53C1010-33 PCI to Ultra160 Multifunction Controller chip can also be
LSIU160 PCI to Single Channel Ultra160 SCSI Host Adapter 1-1
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used. BIOS support for this adapter is incorporated on the board in a
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Flash memory device. The LSIU160 has a serial EEPROM device for
storing the user’s SCSI bus configuration.
The LSI53C1010 also contains a SCSI SCRIPTS™ processor that
permits both DMA and SCSI commands to be fetched from host memory
or internal SCRIPTS RAM. Algorithms written in SCSI SCRIPTS control
the actions of the SCSI and DMA cores. The SCRIPTS processor
executes complex SCSI bus sequences independently of the host CPU.
For more information on the SCSI SCRIPTS Instruction Set used to write
these algorithms, refer to the LSI53C1010-33 PCI to Dual Channel Ultra3
SCSI Multifunction Controller Technical Manual.
This user’s guide, along with the PCI Storage Device Management
System SDMS 4.0 User’s Guide, contains a complete library of product
information and installation instructions. With this information, the full
benefits of the LSIU160 are available to you.
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1.2 Features
This section provides a high-level overview of the PCI Interface, the SCSI
Interface, and Board Characteristics for the LSIU160.
1.2.1 PCI Interface
The PCI interface includes these features:
• Complies with PCI 2.2 specification
• Supports a 64-bit/33 MHz PCI interface for 264 Mbytes/s bandwidth
that:
– Supports 64-bit DMA bus mastership with 64-bit addressing
– Operates at 33 MHz
– Supports dual address cycle generation for all SCRIPTS
– Presents a single electrical load to the PCI Bus (True PCI
Multifunction Device)
• Bursts 4/8, 8/16, 16/32, 32/64, or 64/128 Qword/Dword transfers
across the PCI bus
• Supports 32-bit or 64-bit word data bursts with variable burst lengths
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• Bursts up to 264 Mbytes/s (@ 33 MHz) with zero wait-state bus
master data
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• Supports the PCI Cache Line Size (CLS) register
• Prefetches up to 8 Dwords of SCRIPTS instructions
• Supports PCI Write and Invalidate, Read Line, and Read Multiple
commands
• Bursts SCRIPTS opcode fetches across the PCI bus
• Supports universal 3.3 V and 5 V PCI bus voltage
• Complies with PCI Bus Power Management Specification Revision 1.1
• Complies with PC99
1.2.2 SCSI Interface
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The SCSI interface includes these features:
• Performs wide, Ultra160 SCSI synchronous data transfers as fast as
160 Mbytes/s using Double Transition (DT) clocking
• Supports Cyclic Redundancy Check (CRC) checking and generation
in DT phases
• Protects nondata phases with Asynchronous Information
Protection (AIP)
• Automatically enables LVD or SE termination
• Contains external 68-pin High Density (HD) and internal 68-pin HD
latching connectors
• Provides SCSI termination power (TERMPWR) source with
autoresetting circuit protection device
• Supports Basic (level 1), Enhanced (level 2), and Margined (level 3)
Domain Validation
• Includes integrated LVDlink™ universal transceivers:
– Supports 16-bit SE and LVD signals
– Allows greater device connectivity and longer cable length
– LVDlink transceivers save the cost of external differential
transceivers
– Supports a long-term performance migration path
Features 1-3
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• Supports SCRIPTS:
– Includes 8 Kbytes RAM for SCRIPTS instruction storage
– Supports multithreaded I/O algorithms in SCSI SCRIPTS with
fast I/O context switching
– Handles phase mismatches in SCRIPTS without interrupting the
system processor
– Supports Load/Store SCRIPTS instructions without use of PCI
cycles
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• Supports 31 levels of SCSI synchronous offset in the Single
Transition (ST) mode and 62 levels in the DT mode
• Performs sustained memory-to-memory DMA transfers to
approximately 100 Mbytes/s
• Performs complex bus sequences without interrupts, including
restoring data pointers
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• Supports target disconnect and later reconnect with no interrupt to
the system processor
• Contains a serial EEPROM for user configuration utility
• Provides SCSI bus activity LED connector
1.2.3 Board Characteristics
The LSIU160 board characteristics are:
• PCI board dimensions,
174.6 x 101.6 mm (6.875 x 4.0 inches)
• PCI Universal 64-bit card edge connector
• HD 68-pin external connector
• HD 68-pin internal connector
A mechanical drawing showing board dimensions and component layout
is located in Appendix A, “Technical Specifications.”
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1.3 Interface Descriptions
This section provides a more detailed explanation about the PCI
Interface, the SCSI Interface, Ultra160 SCSI Technology, and LVDlink
Technology.
1.3.1 The PCI Interface
PCI, a high-speed standard local bus, interfaces I/O components to the
processor and memory subsystems in equipment ranging from PCs to
servers. The PCI functionality for the LSIU160 is contained within the
LSI53C1010. The LSI53C1010 connects directly to the PCI bus and
generates signal timing and bus protocol in compliance with the PCI
Specification Revision 2.2.
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The PCI interface operates as a 64-bit DMA bus master capable of
64-bit addressing. The connection is made through edge connector J1,
shown in Figure 2.1 on page 2-5. The signal definitions and pin numbers
conform to the PCI Local Bus Specification Revision 2.2 standard. The
LSIU160 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 LSIU160 is contained within the
LSI53C1010. This chip is a PCI to Ultra160 SCSI Controller with LVDlink
Universal Transceivers. It connects directly to the SCSI bus and
generates signal timing and bus protocol in compliance with SCSI
standards.
The SCSI interface on the LSIU160 operates as an 8-bit or 16-bit
interface. It supports 8-bit or 16-bit, synchronous and asynchronous, LVD
or SE, Fast, Ultra, Ultra2, and Ultra160 SCSI protocols in various
combinations. The interface is made through connectors J3 and J4 (see
Figure 2.1). Internal connector J4 is a 68-pin HD right angle latching
connector. External connector J3 is a shielded 68-pin HD right angle
connector exposed in the back panel bracket. LVD/SE dual mode, active
termination is provided on the LSIU160. Termination is automatically
disabled when both SCSI connectors are used. The LSIU160 supplies
SCSI bus TERMPWR through a blocking diode and a self-resetting 1.5 A
short circuit protection device. A 40 MHz oscillator is installed on the
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Interface Descriptions 1-5
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LSIU160. This oscillator provides the clock frequency necessary to
support Ultra160 SCSI transfers of up to 160 Mbytes/s.
1.3.3 SCSI Bus Activity LED Connector
A SCSI Bus Activity LED connector indicates the status of the SCSI bus
when a LED is attached. This LED lights when the SCSI bus is
transferring information.
1.4 Benefits of Ultra160 SCSI
Ultra160 SCSI delivers data up to two times faster than Ultra2 SCSI.
Ultra160 SCSI is an extension of the SPI-3 draft standard that allows
faster synchronous SCSI data transfer rates than Ultra2 SCSI. When
enabled, Ultra160 SCSI performs 80 megatransfers per second resulting
in approximately double the synchronous data transfer rates of Ultra2
SCSI. The LSI53C1010 performs 16-bit, Ultra160 SCSI synchronous
data transfers as fast as 160 Mbytes/s. This advantage is most
noticeable in heavily loaded systems or large block size applications
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such as video on-demand and image processing.
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The Ultra160 data transfer speed is accomplished using DT clocking. DT
clocking refers to transferring data on both polarity edges of the request
or acknowledge signals. Data is clocked on both rising and falling edges
of the request and acknowledge signals. Double-edge clocking doubles
data transfer speeds without increasing the clock rate.
1.4.1 Cyclic Redundancy Check (CRC)
Ultra160 SCSI includes CRC which offers higher levels of data reliability
by ensuring complete integrity of transferred data. CRC is a 32-bit
scheme, referred to as CRC-32. CRC is guaranteed to detect all single
bit errors, any two bits in error, or any combination of errors within a
single 32-bit range.
1.4.2 Asynchronous Information Protection (AIP)
AIP is also supported by the LSI53C1010, protecting all non-data
phases, including command, status, and messages. CRC, along with AIP,
provides end-to-end protection of the SCSI I/O.
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1.5 Benefits of LVDlink Technology
To support greater device connectivity and a longer SCSI cable, the
LSIU160 features LVDlink technology, the LSI Logic implementation of
Universal LVD SCSI. LVDlink transceivers provide the inherent reliability
of differential SCSI, and a long-term migration path to faster SCSI
transfer rates.
The LVDlink transceivers reduce the power needed to drive the SCSI
bus, so that the I/O drivers can be integrated directly into the chip.
LVDlink technology lowers the amplitude of noise reflections and allows
higher transmission frequencies.
The LVDlink transceivers operate in LVD and SE modes. They also allow
the chip to detect a High Voltage Differential (HVD) signal when the chip
is mistakenly connected to external HVD transceivers. When connected,
the LSI53C1010 automatically detects the signal type, based on the
voltage detected. It automatically switches to the SE or LVD mode, as
appropriate.
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Important: All bus devices must be LVD or SE. If a HVD device is
detected, the board puts the SCSI bus in the high
impedance state and shuts down.
1.6 Benefits of TolerANT®Technology
The LSI53C1010 features TolerANT technology, which includes active
negation on the SCSI drivers and input signal filtering on the SCSI
receivers. Active negation causes the SCSI Request, Acknowledge,
Data, and Parity signals to be actively driven HIGH rather than passively
pulled up by terminators.
TolerANT receiver technology improves data integrity in unreliable
cabling environments where other devices would be subject to data
corruption. TolerANT receivers filter the SCSI bus signals to eliminate
unwanted transitions, without the long signal delay associated with
RC-type input filters. This improved driver and receiver technology helps
eliminate double clocking of data which is the single biggest reliability
issue with SCSI operations. TolerANT input signal filtering is a built-in
feature of the LSI53C1010 and all LSI Logic Fast SCSI, Ultra SCSI,
Ultra2 SCSI, and Ultra160 SCSI devices.
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Benefits of LVDlink Technology 1-7
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The benefits of TolerANT technology include increased noise immunity
when the signal transitions to HIGH, better performance due to balanced
duty cycles, and improved fast SCSI transfer rates. In addition, TolerANT
SCSI devices do not cause glitches on the SCSI bus at power-up or
power-down. This protects other devices on the bus from data corruption.
When it is used with the LVDlink transceivers, TolerANT technology
provides excellent signal quality and data reliability in real world cabling
environments. TolerANT technology is compatible with both the
Alternative One and Alternative Two termination schemes proposed by
the American National Standards Institute.
1.7 Benefits of SureLINK™ (Ultra160 SCSI Domain Validation)
SureLINK represents the very latest SCSI interconnect management
solution. It ensures robust and low risk Ultra160 SCSI implementations
by extending the Domain Validation guidelines documented in the ANSI
T10 SPI-3 specifications. Domain Validation verifies that the system is
capable of transferring data at Ultra160 speeds, allowing it to
renegotiate to lower speed and bus width if necessary. SureLINK is the
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software control for the manageability enhancements in the LSI53C1010.
Fully integrated in the SDMS software solution, SureLINK provides
Domain Validation at boot time as well as throughout system operation.
SureLINK extends to the Desktop Management Interface (DMI) based
System Management components of SDMS, providing the network
administrator remote management capability.
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SureLINK Domain Validation provides three levels of integrity checking:
Basic (level 1), Enhanced (level 2), and Margined (level 3). The basic
check consists of an inquiry command to detect gross problems. The
enhanced check sends a known data pattern using the Read and Write
Buffer commands to detect additional problems. Margined check verifies
that the physical parameters have some degree of margin. By varying
LVD drive strength and REQ/ACK timing characteristics, level 3 verifies
that no errors occur on the transfers. These altered signals are only used
during the diagnostic check and not during normal system operation.
Should errors occur with any of these checks, the system can drop back
to a lower transmission speed, on a per-target basis, to ensure robust
system operation.
1-8 Using the LSIU160
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Chapter 2
Installing the LSIU160
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This chapter provides instructions on how to install the LSIU160 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 2-24
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2.1 Quick Installation Procedure
This section provides an overview of the installation procedure. If you are
an experienced computer user with prior host adapter installation and
SCSI bus setup experience, this section may sufficiently describe the
procedure for you. If you prefer a more detailed guidance for installing
the LSIU160, proceed to 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.
Step 2. Remove the LSIU160 from the packing and check that it is not
damaged.
An example of this host adapter board is shown in Figure 2.1.
A more detailed drawing is located in Figure A.1.
Step 3. Switch off and unplug the system.
Step 4. Remove the cabinet cover on your computer to access the PCI
slots.
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;
LSIU160 PCI to Single Channel Ultra160 SCSI Host Adapter 2-1
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do not touch board components or gold connector contacts.
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The use of a static ground strap is recommended.
Step 5. Locate the slots for installing a PCI plug-in board.
The LSIU160 requires a 32-bit or 64-bit PCI slot that allows bus
master operation. If a 32-bit PCI slot is used, bits [31:1] of the
J1 connector are inserted while bits [64:32] remain uninserted.
See Figure 2.2.
Note: For the LSIU160 to function as a 64 bit-device, it must
inserted in a 64-bit PCI slot. If the LSIU160 is inserted in a
32-bit PCI slot, it will function as a 32-bit device.
Step 6. Remove the blank bracket panel on the back of the computer
aligned with the PCI slot you intend to use.
Save the bracket screw for securing the installed board.
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Step 7. Carefully insert the edge connector J1 of the host adapter into
the PCI slot. Make sure the edge connector is properly aligned
before pressing the board into place. See Figure 2.2.
The bracket around connector J3 (see Figure 2.1) should fit
where the blank bracket panel was removed.
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 orientation is correct. The board
is keyed and will only go in one way.
Step 8. Secure the bracket with the bracket screw before making the
internal and external SCSI bus connections.
Step 9. 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 (see Figure 2.1).
Be sure you match pin 1 on both connectors.
Step 10. Connect the LED cable to J4 if desired.
This is designed to drive an off-board system LED and
indicates activity on the SCSI bus. The off-board LED will
operate at the same time as the on-board SCSI Activity LED.
Step 11. Replace the cabinet cover as described in the user’s manual for
your computer.
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Step 12. Make all external SCSI bus connections.
Step 13. 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.
Remember: The SCSI bus requires proper termination, and no
duplicate SCSI IDs.
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2.2 Detailed Installation Procedure
This section provides step-by-step instructions for installing the LSIU160,
and connecting it to your SCSI peripherals. If you are experienced in
these tasks, you may prefer to use Section 2.1, “Quick Installation
Procedure.”
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2.2.1 Before You Start
Before starting, look through the following task list to get an overall idea
of the steps you will be performing. If you are not confident you can
perform the tasks as described here, LSI Logic suggests getting
assistance.
• Open your PC cabinet and select an appropriate open PCI slot
• Insert the host adapter board
• 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 act as host for up to
15 peripheral devices, not including the adapter itself.
Detailed Installation Procedure 2-3
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2.2.2 Inserting the Host Adapter
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For safe and proper installation, you will need the user’s manual supplied
with your computer. Perform the following steps to install the LSIU160.
Step 1. Ground yourself before removing this host adapter board.
Step 2. Remove the LSIU160 from the packing and check that it is not
damaged.
An example of this host adapter board is shown in Figure 2.1.
A more detailed drawing is located in Figure A.1.
Step 3. Switch off the computer and unplug power cords for all
components in your system.
Step 4. Remove the cover from your computer per the instructions in
the user’s manual for your system to access the PCI slots.
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Caution: Ground yourself by touching a metal surface before
removing the cabinet top. 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 5. 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 LSIU160 requires a 32-bit or 64-bit PCI slot that allows bus
master operation. If a 32-bit PCI slot is used, bits [31:1] of the
J1 connector are inserted while bits [64:32] remain uninserted.
See Figure 2.2.
Note: For the LSIU160 to function as a 64-bit device, it must
inserted in a 64-bit PCI slot. If the LSIU160 is inserted in a
32-bit PCI slot, it will function as a 32-bit device.
Step 6. 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 LSIU160
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Figure 2.1 Hardware Connections for the LSIU160
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External
SCSI
Interface
J3
Internal
SCSI
Interface
J4
LED
Connector
J6
LSIU160
J1 to PCI Mainboard
Step 7. 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. The
bracket around connector J3 should fit where you removed the
blank panel.
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 orientation is correct. The board
is keyed and will only go in one way.
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Detailed Installation Procedure 2-5
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Figure 2.2 Inserting the Host Adapter
Bracket Screw
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Step 8. Secure the board with the bracket screw (see Figure 2.2) before
making the internal and external SCSI bus connections.
2-6 Installing the LSIU160
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2.2.3 Connecting the SCSI Peripherals
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SCSI bus connections to the LSIU160 inside your computer can be made
with an unshielded 68 conductor Ultra SCSI TPE ribbon cable (see
Figure 2.3). The lead connected to pin 1 on the cable is marked with a
colored stripe. The connectors on this cable may also be keyed to ensure
proper pin-1 connection.
All external SCSI bus connections to the LSIU160 are made with high
quality shielded 68 conductor cables (see Figure 2.3). The connectors on
this cable are always keyed to ensure proper pin-1 connection.
Note: All the cables shown in Figure 2.3 are included in the
LSI Logic Adapter Board Kit for the LSIU160.
A list of the SCSI bus width and maximum data transfer rate, for various
SCSI definitions, is provided in Table 2.1.
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Table 2.1 SCSI Bus Widths and Speeds
SCSI Bus Speed
SCSI Bus
STA Terms
SCSI-1 8 5
Fast SCSI 8 10
Fast Wide SCSI 16 20
Ultra SCSI 8 20
Wide Ultra SCSI 16 40
Ultra2 SCSI 8 40
Wide Ultra2 SCSI 16 80
Ultra160 SCSI 16 160
Width, Bits
Maximum Data Rate,
Mbytes/s
You can connect up to eight SCSI, Fast SCSI, and Ultra SCSI devices
on an SE Ultra SCSI bus only if they are evenly spaced on a 1.5-meter
Ultra SCSI cable (0.19 m between devices).
Detailed Installation Procedure 2-7
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