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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