LSI53C825AJ LSI, LSI53C825AJ Datasheet - Page 206

• Manufacturer Part Number: LSI53C825AJ
• Manufacturer: LSI

Specifications of LSI53C825AJ

• Lead Free Status / RoHS Status: Not Compliant

5-22
Sel
R
ENDID[3:0]
R
CC
TM
SCSI SCRIPTS Instruction Set
the first four bytes of the SCRIPTS instruction is added
to the data structure base address to form the fetch
address.
Select with ATN/
This bit specifies whether SATN/ is asserted during the
selection phase when the LSI53C825A is executing a
Select instruction. When operating in Initiator mode, set
this bit for the Select instruction. If this bit is set on any
other I/O instruction, an illegal instruction interrupt is
generated.
Reserved
Encoded SCSI Destination ID
This 4-bit field specifies the destination SCSI ID for an I/O
instruction.
Reserved
Set/Clear Carry
This bit is used in conjunction with a Set or Clear
instruction to set or clear the Carry bit. Setting this bit
with a Set instruction asserts the Carry bit in the ALU.
Clearing this bit with a Clear instruction deasserts the
Carry bit in the ALU.
Set/Clear Target Mode
This bit is used in conjunction with a Set or Clear
instruction to set or clear Target mode. Setting this bit
with a Set instruction configures the LSI53C825A as a
Target device (this sets bit 0 of the
(SCNTL0)
instruction configures the LSI53C825A as an Initiator
device (this clears bit 0 of the
(SCNTL0)
Command
register). Clearing this bit with a Clear
register).
Alternate Jump Offset
Table Offset
SCSI Control Zero
SCSI Control Zero
[23:20]
[19:16]
[15:11]
24
10
9