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Symbios SYM22801
™
Dual Channel PCI to Ultra
SCSI Host Adapter
User’s Guide
Version 2.0
®
S14017
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Federal Communications Commission (FCC) Declaration of Conformity
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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. Document DB15-00106-00, Second Edition (March 1999). This document describes Version 2.0 of LSI Logic Corporation’s Symbios™ SYM22801 Dual Channel PCI to Ultra SCSI Host Adapter and will remain the official reference source for all revisions/releases of this
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iv
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Contents Chapter 1 Using the SYM22801 Host Adapter 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 SYM22801 Host Adapter 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
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Chapter 3 Configuring the Host Adapter 3.1 When to Configure the SYM22801 Host Adapter 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 3-6 3.2.3 Device Selections Menu 3-10 3.3 Exiting the SCSI BIOS Configuration Utility 3-13 Appendix A Technical Specifications A.1 Physical Environment A-1 A.1.1 Physical Characteristics A-1 A.2 Electrical Characteristics A-2 A.2.1 Thermal, Atmospheric Characteristics A-3 A.2.2 Electromagneti
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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
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viii Contents
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Preface This book is the primary reference and User’s Guide for the LSI Logic Symbios SYM22801 Dual Channel PCI to Ultra SCSI Host Adapter. It ™ contains a complete functional description for the SYM22801 and includes complete physical and electrical specifications for the SYM22801. Audience 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 process
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• Appendix B, Glossary of Terms and Abbreviations, provides definitions of various terminology that is referenced throughout this user’s guide. Related Publications PCI SCSI Device Management System SDMS 4.0 User’s Guide, Document No. DB15-000099-01 x Preface
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Chapter 1 Using the SYM22801 Host Adapter This chapter describes how the SYM22801 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 • Section 1.3, “Interface Descriptions,” page 1-3 1.1 General Description LSI Logic’s Symbios™ SYM22801 Dual Channel PCI to Ultra SCSI host adapter provides a SCSI-3, Ultra SCSI interface to PCI computer systems. Installing this adapter in your PCI system
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1.2 Features This section provides a high level overview of the PCI Interface, the SCSI Interface, and Board Chacteristics for the SYM22801 Host Adapter board. 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 single-ended • Automatically enabled active termination • Three connectors per channel: 68-pin VHDCI external 68-pin right-angle high density inte
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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 SYM22801 is contained within the Symbios SYM53C876 PCI to Ultra SCSI I/O Processor chip. The SYM53C876 connects directly to the PCI bus and generates timing proto
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only the upper 8 data bits are automatically terminated. The SYM22801 supplies SCSI bus TERMPWR (termination power) through a blocking diode and a self-resetting 1.5 A short circuit protection device. The onboard LED lights when TERMPWR is shorted. Separate switches for each channel allow user override of termination. A 40 MHz oscillator is installed on the SYM22801 to provide the clock frequency to the SYM53C876 that is necessary to support Wide Ultra SCSI transfers of up to 40 Mbytes/s.
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Chapter 2 Installing the SYM22801 Host Adapter This chapter provides instructions on how to install the SYM22801 Host Adapter 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, “SCSI Bus Termination,” page 2-18 • Section 2.4, “Setting Interrupts,” page 2-27 • Section 2.5, “Completing Your Installation,” page 2-28 2.1 Quick Installation Procedure This section provides quick setup instructi
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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. 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 SYM22801 requires a PCI slot that allows bus master operation
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Step 10. Replace the cabinet cover as described in the user’s manual for your computer. Step 11. Make all external SCSI bus connections. Remember: The SCSI bus requires proper termination, and no duplicate SCSI IDs. Step 12. Finally, refer to the PCI SCSI 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. 2.2 Detailed Installation Procedure This section provides step-by-step ins
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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 SYM22801 host adapter that you install can access up to 15 peripheral devices per channel. 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 removi
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Figure 2.1 Hardware Connections for the SYM22801 Host Adapter Channel A Channel B LED Connector 68-pin Internal Channel B J5 High Density LED Connecto SCSI Interface J9 J6 Channel A 68-pin Internal High Density SCSI Interface Channel B J2 Term ination Override Channel B Switches 50-pin Internal U2 Low Density SCSI Interface J8 Channel A Channel A 68-pin External 50-pin Internal VHDCI Low Density Channel A SCSI Interface Term ination SCSI Interface J3 Override J4 Switches U1 Channel B SYM22801 t
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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 SYM22801 host adapter inside the computer are made with an unshielded, 68 or 50-conductor ribbon cable (see Figure 2.3). One side of this cable is ma
