Chapter Using LSI20860, Features, PCI Interface

Chapter 1 Using the

LSI20860

This chapter contains instructions and illustrations to help you install a LSI20860 PCI to Ultra SCSI host adapter board into a PCI computer system. It includes these topics:

∙Section 1.1, “General Description,” page 1-1

∙Section 1.2, “Installing the LSI20860,” page 1-5

∙Section 1.3, “Connecting SCSI Devices,” page 1-7

∙Section 1.4, “Troubleshooting,” page 1-12

1.1General Description

The LSI20860 provides a low-cost SCSI solution for attaching SCSI devices (disk drives, scanners, CD-ROM drivers, tape drives, removable media drives, etc.) to PCI computer systems with an ISA/EISA bracket type. The LSI20860 uses the LSI53C860 PCI to Ultra SCSI I/O Processor chip, an 80 MHz oscillator, and transfers SCSI data up to 20 Mbytes/s.

1.1.1 Features

This section provides a high level overview of the PCI Interface, the SCSI Interface, and Board Characteristics for the LSI20860.

1.1.1.1PCI Interface

∙Full 32-bit DMA bus master

∙Zero wait-state bus master data bursts

∙Supports 5 V

LSI20860 PCI to Ultra SCSI Host Adapter

1-1