2 scsi interface, Scsi interface, Scsi – LSI U160 User Manual

Page 15: Interface

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3.75 pc

10.25 pc

11.25 pc

38.25 pc

4.333 pc

48.583 pc

52.5 pc

34.5 pc

44.25 pc

Features

1-3

•

Bursts up to 264 Mbytes/s (@ 33 MHz) with zero wait-state bus
master data

•

Supports the PCI Cache Line Size (CLS) register

•

Prefetches up to 8 Dwords of SCRIPTS instructions

•

Supports PCI Write and Invalidate, Read Line, and Read Multiple
commands

•

Bursts SCRIPTS opcode fetches across the PCI bus

•

Supports universal 3.3 V and 5 V PCI bus voltage

•

Complies with PCI Bus Power Management Specification Revision 1.1

•

Complies with PC99

1.2.2

SCSI Interface

The SCSI interface includes these features:

•

Performs wide, Ultra160 SCSI synchronous data transfers as fast as
160 Mbytes/s using Double Transition (DT) clocking

•

Supports Cyclic Redundancy Check (CRC) checking and generation
in DT phases

•

Protects nondata phases with Asynchronous Information
Protection (AIP)

•

Automatically enables LVD or SE termination

•

Contains external 68-pin High Density (HD) and internal 68-pin HD
latching connectors

•

Provides SCSI termination power (TERMPWR) source with
autoresetting circuit protection device

•

Supports Basic (level 1), Enhanced (level 2), and Margined (level 3)
Domain Validation

•

Includes integrated LVDlink™ universal transceivers:

–

Supports 16-bit SE and LVD signals

–

Allows greater device connectivity and longer cable length

–

LVDlink transceivers save the cost of external differential
transceivers

–

Supports a long-term performance migration path

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