pc

10.25 pc 11.25 pc

38

34.5 pc

used. BIOS support for this adapter is incorporated on the board in a Flash memory device. The LSIU160 has a serial EEPROM device for storing the user’s SCSI bus configuration.

The LSI53C1010 also contains a SCSI SCRIPTS™ processor that permits both DMA and SCSI commands to be fetched from host memory or internal SCRIPTS RAM. Algorithms written in SCSI SCRIPTS control the actions of the SCSI and DMA cores. The SCRIPTS processor executes complex SCSI bus sequences independently of the host CPU. For more information on the SCSI SCRIPTS Instruction Set used to write these algorithms, refer to the LSI53C1010-33 PCI to Dual Channel Ultra3 SCSI Multifunction Controller Technical Manual.

This user’s guide, along with the PCI Storage Device Management System SDMS 4.0 User’s Guide, contains a complete library of product information and installation instructions. With this information, the full benefits of the LSIU160 are available to you.

1.2Features

pc

This section provides a high-level overview of the PCI Interface, the SCSI

Interface, and Board Characteristics for the LSIU160.

1.2.1PCI Interface

The PCI interface includes these features:

•Complies with PCI 2.2 specification

•Supports a 64-bit/33 MHz PCI interface for 264 Mbytes/s bandwidth that:

–Supports 64-bit DMA bus mastership with 64-bit addressing

–Operates at 33 MHz

–Supports dual address cycle generation for all SCRIPTS

–Presents a single electrical load to the PCI Bus (True PCI Multifunction Device)

•Bursts 4/8, 8/16, 16/32, 32/64, or 64/128 Qword/Dword transfers across the PCI bus

•Supports 32-bit or 64-bit word data bursts with variable burst lengths

1-2

Using the LSIU160