LSI 53C875A User Manual

LSI

A-4

Register Summary

Remaining Byte Count (RBC)

Reserved

–

–

Reserved

–

Reserved

–

Reserved

–

Response ID One (RESPID1)

Response ID Zero (RESPID0)

Scratch Byte Register (SBR)

Scratch Register A (SCRATCHA)

Scratch Register B (SCRATCHB)

Scratch Registers C–R (SCRATCHC–SCRATCHR) 0x60–0x9F

SCRIPTS Fetch Selector (SFS)

SCSI Bus Control Lines (SBCL)

SCSI Bus Data Lines (SBDL)

SCSI Byte Count (SBC)

SCSI Chip ID (SCID)

SCSI Control One (SCNTL1)

SCSI Control Three (SCNTL3)

SCSI Control Two (SCNTL2)

SCSI Control Zero (SCNTL0)

SCSI Destination ID (SDID)

SCSI First Byte Received (SFBR)

SCSI Input Data Latch (SIDL)

SCSI Interrupt Enable One (SIEN1)

Table A.2

LSI53C875A SCSI Register Map (Cont.)

Register Name

Address

Read/Write

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