Avago Technologies LSI53C180 - Manual (Page 15)

General Description 1-5
1.1.2 Features
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A flexible SCSI bus expander that supports any combination of LVD
or SE transceivers
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Creates distinct SCSI bus segments that are isolated from each
other
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Integrated LVD Link transceivers for direct attachment to either LVD
or SE bus segments
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Operates as a SCSI Bus Expander
– LVD to LVD (Ultra160 SCSI)
– SE to SE (Ultra SCSI)
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Operates as a SCSI Bus Converter
– LVD to SE (Ultra SCSI)
– SE to LVD (Ultra SCSI)
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Targets and initiators may be located on either the A or B Side of the
device
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Accepts any asynchronous or synchronous transfer speed up to
Ultra160 SCSI (for LVD to LVD mode only)
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Supports dynamic addition/removal of SCSI bus segments using the
isolation mode
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Does not consume a SCSI ID
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Propagates the RESET/ signal from one side to the other regardless
of the SCSI bus state
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Notifies initiator(s) of changes in transmission mode (SE/LVD) on A
or B Side segments by using the SCSI bus RESET/
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SCSI Busy LED driver for activity indicator
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Up to four LSI53C180s may be cascaded
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Does not require software
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Supports Double Transition (DT) clocking
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Supports Cyclic Redundancy Check (CRC) in DT data phases
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Supports Domain Validation