User’s Guide LSI21003 PCI to Dual Channel SCSI Host Adapter Version 1.
Electromagnetic Compatibility Notices This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: 1. 2. This device may not cause harmful interference, and 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.
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.
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Preface This book is the primary reference and user’s guide for the LSI Logic LSI21003. It describes how to install and configure the LSI21003 in a PCI computer system. LSI Logic Technical Support The entire LSI Logic host adapter solution has been designed for ease of use. However, if you require additional assistance, please contact the LSI Logic Technical Support Hot Line at (719) 533-7230. The hours of operation are from 7:30 a.m. to 4:30 p.m. (MST), Monday through Friday.
• Chapter 3, Technical Specifications, describes the physical and operational environments of the LSI21003. • Appendix A, Glossary of Terms and Abbreviations, provides definitions of various terminology that is referenced throughout this user’s guide. Related Publications LSI53C1010-33 PCI to Dual Channel Ultra3 SCSI Multifunction Controller Technical Manual, Order Number S14025.A PCI Storage Device Management System SDMS™ 4.0 User’s Guide, Order Number S14007.
Contents Chapter 1 Chapter 2 Chapter 3 Using the LSI21003 1.1 General Description 1.2 Features 1.2.1 PCI Interface 1.2.2 SCSI Interface 1.2.3 Board Characteristics 1.3 Interface Descriptions 1.3.1 The PCI Interface 1.3.2 The SCSI Interface 1.3.3 SCSI Activity LED Interface 1.3.4 Cabling Installing the LSI21003 2.1 Quick Installation Procedure 2.2 Detailed Installation Procedure 2.2.1 Before You Start 2.2.2 Inserting the Host Adapter 2.2.3 Connecting the SCSI Peripherals 2.2.4 SCSI Bus Termination 2.
3.2 3.3 Appendix A 3.1.5 Safety Characteristics Operational Environment 3.2.1 The PCI Interface 3.2.2 The SCSI Interface Subsystem and Subsystem Vendor ID 3-4 3-4 3-4 3-7 3-12 Glossary of Terms and Abbreviations Index Customer Feedback Figures 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11 2.12 2.13 2.14 2.15 3.
3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.
x Contents
Chapter 1 Using the LSI21003 This chapter provides an overview of the LSI Logic LSI21003 PCI to Dual Channel SCSI Host Adapter board and its interfaces to PCI computer systems. These topics are discussed: • 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 LSI21003 provides internal and external SCSI interfaces to PCI computer systems that require BIOS support on the add-in SCSI adapter.
1.2 Features This section provides a high level overview of the PCI Interface, the SCSI Interface, and Board Characteristics for the LSI21003. 1.2.1 PCI Interface The PCI interface includes these features: • True PCI multifunction controller for maximum performance • 32-bit (33 MHz) DMA bus master • Bursts up to 128 Dwords across the PCI Bus • Zero wait-state bus master data bursts up to 110 Mbytes/s (@ 33 MHz) • Prefetches up to 8 Dwords of SCRIPTS™ instructions • PCI Universal 3.
• Fast, Ultra, Ultra2, and Ultra160 data transfer capability • SCSI Termination Power (TERMPWR) source with autoresetting circuit breaker • Supports SE and LVD signaling with automatic termination – Channel A is SE only with autosense termination – Channel B is SE or LVD with termination permanently enabled • Performs complex bus sequences without interrupts, including restore data pointers • SCSI Plug and Play • Flash ROM for BIOS storage • Serial EEPROM for each channel for user configurat
functionality for the LSI21003 is contained within the LSI53C1010-33. The chip connects directly to the PCI bus and generates timing protocol in compliance with the PCI specification. 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 2.2 standard. The LSI21003 conforms to the PCI universal signaling environment for a 5 V or 3.3 V PCI bus. 1.3.
1.3.3 SCSI Activity LED Interface The SCSI activity LED interface is a four-wire arrangement that allows connection of an LED harness to the board. The connector on the host adapter is J6 for both channels. See Table 3.8 on page 3-12 for the signal name and pin numbers on this interface. 1.3.4 Cabling The cable provided in the kit is matched for a Fast/Ultra/Ultra2/Ultra160 SE or LVD operation.
1-6 Using the LSI21003
Chapter 2 Installing the LSI21003 This chapter describes installing the LSI21003 into PCI computer systems 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, “Setting SCSI IDs,” page 2-22 • Section 2.4, “Setting Interrupts (Exceptional Cases),” page 2-24 • Section 2.5, “Completing the Installation,” page 2-25 2.
A 32-bit slot should be used. The LSI21003 will work in a 64-bit slot, but only 32 bits are used. The host adapter requires a PCI slot that allows bus master operation. See Figure 2.2 on page 2-6. 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. Step 7. Carefully insert edge connector J1 of the host adapter into the PCI slot.
2.2 Detailed Installation Procedure This section provides step-by-step instructions for installing your LSI21003 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.” 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 you start, look through the task list below to get an overall idea of the steps to perform.
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 removing the host adapter board from its package. Note: 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 2.
have in your system. This orientation is correct. The board is keyed and can only be inserted one way. Step 8. Secure the board with the bracket screw (see Figure 2.2) before making the SCSI bus connections. Figure 2.
Figure 2.2 Inserting the Host Adapter Bracket Screw 32-Bit slots 64-Bit slots 2.2.3 Connecting the SCSI Peripherals All internal SCSI bus connections to the LSI21003 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. The connectors on this cable are keyed to ensure a proper pin-1 connection. Use Ultra/Ultra2/Ultra160 rated cables for these bus speeds. (See Table 1.1 in Chapter 1.
For convenience, Channel A also has a 50-pin narrow (ribbon) connector. Some internal cables come with an SE/LVD terminator on one end. This end should be furthest from the host adapter. All external SCSI bus connections to the LSI21003 are made with a shielded, 50-pin high density cable (see Figure 2.3). The connectors on this cable are always keyed to ensure a proper pin-1 connection. Figure 2.
2.2.3.1 Making Internal SCSI Bus Connections This section provides step-by-step instructions about making internal SCSI bus connections. If you have no internal devices to connect, proceed to Step 4. Step 1. Plug one end of a SCSI ribbon cable into an appropriate connector, J2, J4, or J5. The example in Figure 2.4 shows a wide cable. Channel A (J2 and J4) supports SE mode. Channel B (J5) supports SE and LVD modes. Figure 2.
Step 2. Plug the other end of the cable into the connector on the internal SCSI device. An example of this connection appears in Figure 2.5. Figure 2.5 Internal SCSI Ribbon Cable to Internal SCSI Device Connection If this is the only internal device on the bus, proceed to Step 4. If you have more than one internal device to connect, use an internal SCSI ribbon cable with the required number of connectors attached along its length and proceed to Step 3.
Step 3. Plug the cable into each additional device as illustrated in Figure 2.6. Figure 2.
An example of multiple internal SCSI devices chained together is shown in Figure 2.7. Figure 2.
Most PC cabinets are designed with a front panel LED. If you wish to enable this feature, follow Step 4. Step 4. Connect the LED cable to connector J6 on the host adapter, as shown in Figure 2.8. When properly connected, the front panel LED lights when there is activity on the SCSI bus. Connector J6 is not keyed. The orientation of the LED cable should not matter as long as all four pins are connected.
2.2.3.2 Making External SCSI Bus Connections This section provides step-by-step instructions for making external SCSI bus connections. If you have only internal devices, proceed to Section 2.2.4, “SCSI Bus Termination,” page 2-15. To connect external SCSI devices to the LSI21003: Step 1. Plug the 50-pin HD connector on one end of a shielded external SCSI cable into the host adapter connector J3 (see Figure 2.1). This connector is in the bracket attached to the back panel of your computer. Figure 2.
Step 2. Plug the 50-pin high density 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 2.10. Figure 2.10 External Cable to External SCSI Device If this is the only external SCSI device on your system, proceed to Section 2.2.4, “SCSI Bus Termination,” page 2-15, for termination instructions. If you have multiple external devices, proceed to page 2-15.
Step 3. Chain multiple devices together with shielded external SCSI cables. An example of these chained connections is shown in Figure 2.11. Figure 2.11 Multiple External SCSI Devices Chained Together 2.2.4 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.
bus and its termination is automatically enabled when it is connected to the end of the bus. Important: To utilize Ultra160 SCSI performance, you must only have LVD devices on the bus. Do not mix any SE devices with LVD devices or the entire bus will drop to SE, limiting bus performance to Ultra SCSI levels. LVD peripheral devices are normally terminated with external terminators, but are sometimes set with jumpers or with a switch on the peripheral.
Figure 2.12 shows an example of how termination is determined for this SCSI bus configuration. Figure 2.
2.2.4.2 Internal SCSI Connections for Both Internal Connectors If internal SCSI device connections to both internal connectors (J2 and J4) on your host adapter have been made, then terminate the internal devices on each end of the SCSI bus. You must disable the termination on all other devices. Termination on Channel A of your host adapter is automatically disabled in this case. Remember, you must not use the external connector J3 if you use both internal connectors. Figure 2.
Figure 2.14 shows an example of how termination is determined for this SCSI bus configuration on the host adapter external Channel A. Figure 2.
2.2.4.4 Internal and External SCSI Connections If internal and external SCSI devices are connected to the host adapter, then terminate the last internal and external devices on the SCSI bus. You must disable the termination on all other devices. Termination on Channel A of the host adapter is automatically disabled in this case. Figure 2.15 shows an example of how termination is determined for this SCSI bus configuration on the host adapter internal Channel A and external Channel A.
Figure 2.
2.3 Setting SCSI IDs 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 bus. If you plan to boot your computer from a hard disk drive on the SCSI bus, that drive should have SCSI ID 0, or the lowest SCSI ID on the bus. Chapter 2 “SCSI BIOS” of the PCI Storage Device Management System SDMS 4.0 User’s Guide explains how to set your host adapter ID using the SCSI BIOS Configuration Utility.
Table 2.
2.4 Setting Interrupts (Exceptional Cases) Normally, you do not change the default interrupt routing for the LSI21003, since performance is usually increased by having two separate interrupts. However, if your system does not support two separate interrupts, the INTA/INTB/ jumper is provided to change the interrupt routing. This capability requires enabling the INTA/INTB/ to act as a jumper for special configuration purposes.
2.5 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.
2-26 Installing the LSI21003
Chapter 3 Technical Specifications This chapter discusses the physical environment associated with the LSI21003 and includes a mechanical drawing of the host adapter (Figure 3.1). • Section 3.1, “Physical Environment,” page 3-1 • Section 3.2, “Operational Environment,” page 3-4 • Section 3.3, “Subsystem and Subsystem Vendor ID,” page 3-12 3.1 Physical Environment The LSI21003 has specific physical, electrical, thermal, and safety characteristics, which are described in the next sections.
Figure 3.1 LSI21003 Mechanical Drawing J2 J5 Channel A J6 Channel B J4 A Terminators B Terminators Channel A LSI53C1010 J3 J1T Note: all dimensions in inches • J1: PCI 32-bit, universal type board edge connector. • J2 and J5: 68-pin high density shielded latching right-angle connector. • J3: 50-pin high density shielded right-angle connector. • J4: 50-pin low density shrouded vertical connector. • J6: 4-pin low density unshrouded right-angle header. 3.1.
3.1.2 Electrical Characteristics The LSI21003 maximum power requirements, which include SCSI TERMPWR, under normal operation are listed in Table 3.1: Table 3.1 +5 V DC Maximum Power Requirements ±5% 1.5 A Over the operating range 5 °C to 55 °C The PCI PRSNT1# and PRSNT2# pins are set to indicate a 15 W maximum configuration. Under abnormal conditions, such as a short on SCSI TERMPWR, +5 V current may be higher.
3.1.5 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. 3.2 Operational Environment The LSI21003 is designed for use in PCI computer systems with an ISA/EISA bracket type.
Table 3.2 PCI Connector J1 Front Side Signals 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.
Table 3.3 PCI Connector J1 Back Side Signals 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 Vio 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 3.
3.2.2 The SCSI Interface The SCSI interface conforms to ANSI X3T10.11/1142. The SCSI interface operates as two 16-bit, SE or LVD channels, and supports Fast, Ultra, Ultra2, and Ultra160 SCSI protocols. The interface is made through connectors J2, J3, and J4 for Channel A and J5 for Channel B. J2 is a 68-pin high density right-angle connector for internal SCSI connections to Channel A.
Table 3.
Table 3.
Table 3.
Table 3.
3.2.2.1 SCSI Activity LED Interface The LED interface allows an LED harness to be connected to the board. J6 is the connector for both channels. Table 3.8 lists the signals and pin numbers for Connector J6. Table 3.8 Connector J6 Signals Signal Name Pin A_LED+ 1 A_LED− 2 B_LED− 3 B_LED+ 4 3.3 Subsystem and Subsystem Vendor ID The Subsystem ID and System Vendor ID for the LSI21003 are provided in Table 3.9. The EEPROM of the LSI21003 contains the ID numbers.
3.75 pc 10.25 pc 11.25 pc 38.25 pc 34.5 pc 4.333 pc Appendix A Glossary of Terms and Abbreviations 160/m An industry initiative extension of the Ultra160 SCSI specification that requires support of Double Transition Clocking, Domain Validation, and Cyclic Redundancy Check. Active Termination The electrical connection required at each end of the SCSI bus, composed of active voltage regulation and a set of termination resistors. Ultra, Ultra2, and Ultra160 SCSI require active termination.
3.75 pc 10.25 pc 11.25 pc 38.25 pc 34.5 pc Bus Mastering A high-performance way to transfer data. The host adapter controls the transfer of data directly to and from system memory without interrupting the computer’s microprocessor. This is the fastest way for multitasking operating systems to transfer data. Byte A unit of information consisting of eight bits. CISPR A special international committee on radio interference (Committee, International and Special, for Protection in Radio).
3.75 pc 10.25 pc 11.25 pc 38.25 pc 34.5 pc Dword A doubleword 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.
3.75 pc 10.25 pc 11.25 pc 38.25 pc 34.5 pc IRQ Interrupt Request Channel. A path through which a device can get the immediate attention of the computer’s CPU. 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.
3.75 pc 10.25 pc 11.25 pc 38.25 pc 34.5 pc Parity Checking A way to verify the accuracy of data transmitted over the SCSI bus. The parity 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, the information may be retransmitted or an error message may appear. Passive 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.
3.75 pc 10.25 pc 11.25 pc 38.25 pc 34.5 pc SCAM SCSI Configured AutoMatically. A method to automatically allocate SCSI IDs using software when SCAM compliant SCSI devices are attached. SCSI Small Computer System Interface. A specification for a high-performance peripheral bus and command set. The original standard is referred to as SCSI-1. SCSI-2 The SCSI specification which adds features to the original SCSI standard.
3.75 pc 10.25 pc 11.25 pc 38.25 pc 34.5 pc 44.25 pc 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. 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.
3.75 pc 10.25 pc 11.25 pc 38.25 pc 34.5 pc 4.333 pc 44.25 pc 48.583 pc A-8 Glossary of Terms and Abbreviations 52.
Index B M board characteristics 1-3 board software 1-1 burst transfer rate 1-4 bus configurations 2-16 multiple SCSI devices chained together 2-11 P C chained connection 2-15 completing the installation 2-25 connecting the SCSI peripherals 2-6 D descriptions PCI interface 1-3 SCSI activity LED interface 1-5, 3-12 SCSI interface 1-4 detailed installation procedure 2-3 DMA bus master 32-bit 1-2 E PCI interface 1-2 PCI slot 2-2 peripheral devices 2-22 preset host adapter setting SCSI ID 7 2-22 S SCSI
IX-2 Index
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