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® LSI8751D PCI to SCSI Host Adapter USER’S GUIDE A ugust 2001 V ersion 3.0.
ii Electroma gnetic Compatibility Notices This device complies with P art 15 of the FCC Rules. Operation is subject to the follo wing two conditions: 1. This device ma y not cause harmful interference, and 2. This device m ust accept any interf erence received, including interf erence that ma y cause undesired operation.
iii This document contains proprietar y information of LSI Logic Cor poration. The inf or mation contained herein is not to be used by or disclosed to third par ties without the e xpress written per mission of an officer of LSI Logic Cor poration. LSI Logic products are not intended f or use in life-support appliances, de vices, or systems.
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Pref ace v Preface This book is the primar y reference and user’ s guide for the LSI Logic LSI8751D PCI to SCSI Host Adapter . It descr ibes how to install and configure the LSI8751D in a PCI computer system. Basic inf or mation on setting up the SCSI bus is also pro vided.
vi Pref ace • Chapter 3, T echnical Specifications , describes the physical and operational en vironments of the LSI8751D . • Appendix A, Glossary of T erms and Abbreviations , provides definitions of various terminology that is referenced throughout this user’ s guide.
Contents i Contents Chapter 1 Describing the LSI8751D 1.1 General Description 1-1 1.2 F eatures 1-2 1.2.1 PCI Interf ace 1-2 1.2.2 SCSI Interf ace 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.
ii Contents Appendix A Glossary of T erms and Abbreviations Customer Feedback.
iii Figures 2.1 Hardware Connections f or the LSI8751D 2-3 2.2 Inser ting the Host Adapter 2-4 2.3 SCSI Cables 2-6 2.4 Inter nal SCSI Ribbon Cab le to Host Adapter Connection 2-7 2.5 Inter nal SCSI Ribbon Cab le to Inter nal SCSI De vice Connection 2-8 2.
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v T ables 2.1 SCSI Bus Widths and Speeds 2-5 2.2 SCSI ID Record 2-20 3.1 Maximum P ower Requirements 3-2 3.2 PCI Connector JI (T op) 3-4 3.3 PCI Connector JI (Bottom) 3-5 3.
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LSI8751D PCI to SCSI Host Adapter 1-1 Chapter 1 Describing the LSI8751D This chapter describes how the LSI8751D PCI to SCSI Host Adapter interf aces to PCI computer systems and includes these topics: • Section 1.1, “General Description, ” page 1-1 • Section 1.
1-2 Describing the LSI8751D 1.2 Features This section provides an o verview of the PCI interf ace, the SCSI interf ace, and board characteristics f or the LSI8751D . BIOS suppor t for this host adapter is incorporated on the board in an 8 x 64 Kbytes Flash BIOS .
F eatures 1-3 • 68-pin high density e xter nal dual connector • 68-pin high density inter nal dual connector • F ast and Ultra SCSI data transf er capability • SCSI ter mination pow er (TERMPW.
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.
2-2 Installing the LSI8751D Step 7. Connect the inter nal and e xter nal SCSI peripherals. Optional: Connect the LED cable on y our SCSI host adapter . Step 8. T er minate the SCSI bus. The SCSI bus requires proper termination and no duplicate SCSI IDs.
Detailed Installation Procedure 2-3 2.2.2 Inserting the Host Adapter F or safe and proper installation, chec k the user’ s manual supplied with your computer and perf or m the follo wing steps. Step 1. Ground yourself bef ore handling this host adapter board.
2-4 Installing the LSI8751D by the edge; do not touch board components or gold connector contacts. The use of a static ground str ap is recommended. Step 4. Locate the slots for PCI plug-in board installation. Ref er to the user’ s manual for y our computer to confir m the location of the PCI slots.
Detailed Installation Procedure 2-5 Step 7. The brack et around the connectors J3 (see Figure 2.1 ) should fit in the slot where you remo ved the b lank panel. Secure the brac ket with the brac ket screw (see Figure 2.2 ) bef ore making the inter nal and e xter nal SCSI bus connections .
2-6 Installing the LSI8751D Figure 2.3 SCSI Cables SCSI Cable for Internal Connections SCSI Cable for External Connections.
Detailed Installation Procedure 2-7 2.2.3.1 Making Internal SCSI Bus Connections This section provides step-b y-step instructions for making internal SCSI bus connections: Step 1. T o connect an inter nal SCSI device, plug the 68-pin connector on one end of the internal SCSI r ibbon cable into the connector J2.
2-8 Installing the LSI8751D Step 2. Plug the 68-pin connector on the other end of the inter nal SCSI ribbon cable into the SCSI connector on y our inter nal SCSI de vice. (See Figure 2.5.) Make sure to match pin 1 on all connections. Figure 2.5 Internal SCSI Ribbon Cable to Internal SCSI Device Connection Step 3.
Detailed Installation Procedure 2-9 Figure 2.7 shows an e xample of this type of chained connection. Make sure to match pin 1 on all connections . Figure 2.
2-10 Installing the LSI8751D Step 4. Most PC cabinets are designed with a front panel LED , which ma y already be connected to an existing IDE driv e. Connect this LED cable to connector J4 on the host adapter , as shown in Figure 2.8 . This allows the front panel LED to indicate activity on the SCSI bus .
Detailed Installation Procedure 2-11 2.2.3.2 Making External SCSI Bus Connections This section provides step-b y-step instructions for making e xter nal SCSI bus connections: Step 1. T o connect external SCSI devices to the LSI8751D , plug the 68- pin connector on one end of a shielded e xter nal SCSI cable (see Figure 2.
2-12 Installing the LSI8751D Step 2. Plug the 68-pin connector on the other end of the shielded e xter nal SCSI cable into the SCSI connector on the e xter nal SCSI de vice.
Detailed Installation Procedure 2-13 Step 3. T o connect more than one external SCSI device to the host adapter , you must chain them together with shielded e xternal SCSI cables .
2-14 Installing the LSI8751D 2.2.4 SCSI Bus T ermination The de vices making up the SCSI bus are connected serially (chained together) with SCSI cables . The first and last ph ysical SCSI devices connected on the ends of the SCSI bus m ust hav e a set of resistors called ter minators.
Detailed Installation Procedure 2-15 2.2.4.1 Internal SCSI Connections If you mak e only internal SCSI device connections to the host adapter , you m ust ter minate the last inter nal de vice on the SCSI bus. Y ou must disable the termination on all other de vices.
2-16 Installing the LSI8751D 2.2.4.2 External SCSI Connections If you mak e only e xter nal SCSI de vice connections to the host adapter , you m ust ter minate the last e xter nal device on the SCSI b us. Y ou must disable the termination on all other de vices.
Detailed Installation Procedure 2-17 2.2.4.3 Internal and External SCSI Connections If you mak e internal and external SCSI device connections to the host adapter , you must terminate the last inter nal device and e xter nal device on the SCSI bus . Y ou must disable the termination on all other devices .
2-18 Installing the LSI8751D Figure 2.14 Internal and External SCSI Device T ermination Last Device on Chain – T ermination Enabled Host Adapter T ermination Not Required Last Device on Chain – T .
Detailed Installation Procedure 2-19 2.2.5 Setting SCSI IDs Each SCSI de vice and the host adapter must hav e a separate SCSI ID , 0 through 15. SCSI ID 7 is the preset host adapter setting, giving it the highest prior ity on the SCSI bus .
2-20 Installing the LSI8751D T able 2.2 SCSI ID Record SCSI ID SCSI Device 15 14 13 11 10 9 8 7 LSI8751D (def ault) 6 5 4 3 2 1 0.
Completing the Installation 2-21 2.3 Completing the Installation Bef ore replacing the cov er on your computer , re view this installation procedure check list. This can sa v e you eff or t later . Step 1. Replace the cabinet cov er on your computer .
2-22 Installing the LSI8751D.
LSI8751D PCI to SCSI Host Adapter 3-1 Chapter 3 T echnical Specifications This section discusses the ph ysical environment associated with the LSI8751D . The LSI8751D mechanical dra wing is shown in Figure 1.1 . This section also includes these topics: • Section 1.
3-2 T echnical Specifications Figure 3.1 LSI8751D Mechanical Drawing 3.1.2 Electrical Characteristics The LSI8751D maximum pow er requirements, including SCSI TERMPWR, under nor mal operation, are sho wn in T able 1.1 : Under abnor mal conditions, such as a short on SCSI TERMPWR, +5 V current ma y be higher .
Operational En vironment 3-3 The PCI PRSNT1/ and PRSNT2/ pins are set to indicate a 7.5 W maximum configuration. 3.1.3 Thermal, Atmospheric Characteristics The board operates in an en vironment defi.
3-4 T echnical Specifications Note: The + 3.3 V pins are tied together and decoupled with high frequency bypass capacitors to g round. No current from these 3.3 V pins is used on the board. The PCI por tion of the LSI53C875J chip is powered from the 3 V/5 V pins .
Operational En vironment 3-5 3.2.2 The SCSI Interface The SCSI interf ace operates as 16-bit, synchronous or asynchronous, High V oltage Differential (HVD) b us, and suppor ts SCSI-3 protocols and 16-bit arbitration. The signal definitions conf orm to the SCSI-2 differential standard.
3-6 T echnical Specifications 3.2.3 The LED Interface The LED interf ace on the LSI8751D is a four-wire arr angement that allows the user to connect an LED harness to the board.
LSI8751D PCI to SCSI Host Adapter A-1 Appendix A Glossary of T erms and Abbre viations Active T ermination The electrical connection required at each end of the SCSI bus , composed of active v oltage regulation and a set of ter mination resistors. Ultra and Ultra2 SCSI require activ e ter mination.
A-2 Glossar y of T er ms and Abbreviations Configuration Ref ers to the wa y a computer is set up; the combined hardware components (computer , monitor , ke yboard, and peripheral de vices) that make up a computer system; or the softw are settings that allow the hardware components to communicate with each other .
Glossar y of T er ms and Abbreviations A-3 Fast SCSI A standard for SCSI data tr ansfers . It allows a transf er rate of up to 10 Mbytes/s ov er an 8-bit SCSI bus and up to 20 Mbytes/s o ver a 16-bit SCSI bus . FCC F ederal Communications Commission. File A named collection of inf or mation stored on a disk.
A-4 Glossar y of T er ms and Abbreviations L VD SCSI Low V oltage Diff erential. L VD is a robust design methodology that improv es pow er consumption, data integrity , cable lengths and suppor t f or multiple de vices, while providinga mig ration path f or increased I/O perf or mance.
Glossar y of T er ms and Abbreviations A-5 P eripheral Devices A piece of hardw are (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 .
A-6 Glossar y of T er ms and Abbreviations SCSI Bus A host adapter and one or more SCSI peripherals connected b y cables in a linear chain configuration. The host adapter ma y e xist anywhere on the chain, allowing connection of both internal and external SCSI de vices.
Glossar y of T er ms and Abbreviations A-7 16-bit SCSI bus . ST A (SCSI T rade Association) supports using the ter m “Ultra2 SCSI” ov er the ter m “F ast-40”. VCCI V oluntar y Control Council for Interf erence. VDE V erband Deucher Elektroniker (Association of German Electr ical Engineers).
A-8 Glossar y of T er ms and Abbreviations.
LSI8751D PCI to SCSI Host Adapter IX-1 Inde x B board characteristics 1-3 C chained connection 2-9 , 2-13 completing the LSI8751D installation 2-21 connecting the SCSI peripherals 2-5 D detailed insta.
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Wenn Sie aber schon LSI 8751D besitzen, und noch keine Gelegenheit dazu hatten, die Bedienungsanleitung zu lesen, sollten Sie es aufgrund der oben beschriebenen Gründe machen. Sie erfahren dann, ob Sie die zugänglichen Funktionen richtig genutzt haben, aber auch, ob Sie keine Fehler begangen haben, die den Nutzungszeitraum von LSI 8751D verkürzen könnten.
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