Table A.2

LSI53C875A SCSI Register Map (Cont.)

 

 

 

 

 

 

Register Name

Address

Read/Write

Page

 

 

 

 

SCSI Interrupt Enable Zero (SIEN0)

0x40

Read/Write

4-73

 

 

 

 

SCSI Interrupt Status One (SIST1)

0x43

Read Only

4-78

 

 

 

 

SCSI Interrupt Status Zero (SIST0)

0x42

Read Only

4-76

 

 

 

 

SCSI Longitudinal Parity (SLPAR)

0x44

Read/Write

4-79

 

 

 

 

SCSI Output Control Latch (SOCL)

0x09

Read/Write

4-37

 

 

 

 

SCSI Output Data Latch (SODL)

0x54–0x55

Read/Write

4-94

 

 

 

 

SCSI Selector ID (SSID)

0x0A

Read Only

4-38

 

 

 

 

SCSI Status One (SSTAT1)

0x0E

Read Only

4-43

 

 

 

 

SCSI Status Two (SSTAT2)

0x0F

Read Only

4-46

 

 

 

 

SCSI Status Zero (SSTAT0)

0x0D

Read Only

4-42

 

 

 

 

SCSI Test Four (STEST4)

0x52

Read Only

4-94

 

 

 

 

SCSI Test One (STEST1)

0x4D

Read/Write

4-88

 

 

 

 

SCSI Test Three (STEST3)

0x4F

Read/Write

4-91

 

 

 

 

SCSI Test Two (STEST2)

0x4E

Read/Write

4-89

 

 

 

 

SCSI Test Zero (STEST0)

0x4C

Read Only

4-87

 

 

 

 

SCSI Timer One (STIME1)

0x49

Read/Write

4-85

 

 

 

 

SCSI Timer Zero (STIME0)

0x48

Read/Write

4-83

 

 

 

 

SCSI Transfer (SXFER)

0x05

Read/Write

4-31

 

 

 

 

SCSI Wide Residue (SWIDE)

0x45

Read/Write

4-81

 

 

 

 

Static Block Move Selector (SBMS)

0xB0–0xB3

Read/Write

4-102

 

 

 

 

Temporary (TEMP)

0x1C–0x1F

Read/Write

4-57

 

 

 

 

Updated Address (UA)

0xCC–0xCF

Read/Write

4-105

 

 

 

 

 

Register Summary

A-5

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Image 305
LSI technical manual Table A.2 LSI53C875A Scsi Register Map