2 pci performance, 3 integration, 4 ease of use – LSI 53C810A User Manual

Page 16: Pci performance, Integration, Ease of use

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General Description

1.2.2 PCI Performance

To improve PCI performance, the LSI53C810A:

•

Bursts 2, 4, 8, or 16 Dwords across PCI bus with 80-byte DMA FIFO

•

Prefetches up to 8 Dwords of SCRIPTS instructions

•

Supports 32-bit word data bursts with variable burst lengths.

•

Bursts SCRIPTS opcode fetches across the PCI bus

•

Performs zero wait-state bus master data bursts faster than
110 Mbytes/s (@ 33 MHz)

•

Supports PCI

Cache Line Size

register

1.2.3 Integration

Features of the LSI53C810A which ease integration include:

•

3.3 V/5 V PCI interface

•

Full 32-bit PCI DMA bus master

•

DMA controller using Memory-to-Memory Move instructions

•

High-performance SCSI core

•

Integrated SCRIPTS processor

•

Compact 100-pin PQFP packaging

1.2.4 Ease of Use

The LSI53C810A provides:

•

Direct PCI-to-SCSI connection

•

Reduced SCSI development effort

•

Support for the ASPI software standard using SDMS software

•

Compatibility with existing LSI53C7XX and LSI53C8XX family
SCRIPTS

•

Direct connection to PCI and SCSI SE bus

•

Development tools and sample SCSI SCRIPTS

•

Maskable and pollable interrupts

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