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

1.1General Description

The LSI21003 provides internal and external SCSI interfaces to PCI computer systems that require BIOS support on the add-in SCSI adapter. Installing this host adapter in your PCI system allows connection of SCSI devices over a SCSI bus.

The LSI21003 provides 16-bit Low Voltage Differential (LVD) and Single-Ended (SE) SCSI solutions for your computer. It supports legacy Fast, Ultra, Ultra2, and the newest Ultra160 SCSI devices. Channel A supports only the SE mode. Channel B supports SE and LVD modes of operation.

The Storage Device Management System (SDMS™) software operates the board. The design of the board does not prevent other software from being used with it.

This guide, along with the PCI Storage Device Management System SDMS 4.0 User’s Guide, contains product information and installation instructions to help you gain the full benefits of the LSI21003.

LSI21003 PCI to Dual Channel SCSI Host Adapter

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