LSI53C825AJ LSI, LSI53C825AJ Datasheet - Page 214

• Manufacturer Part Number: LSI53C825AJ
• Manufacturer: LSI

Specifications of LSI53C825AJ

• Lead Free Status / RoHS Status: Not Compliant

5-30
SCSI SCRIPTS Instruction Set
If the comparisons are false, the LSI53C825A fetches the
next instruction from the address pointed to by the
SCRIPTS Pointer (DSP)
pointer unchanged.
Call Instruction
The LSI53C825A can do a true/false comparison of the
ALU carry bit, or compare the phase and/or data as
defined by the Phase Compare, Data Compare, and
True/False bit fields.
If the comparisons are true, it loads the
Pointer (DSP)
SCRIPTS Pointer Save (DSPS)
value becomes the address of the next instruction.
When the LSI53C825A executes a Call instruction, the
instruction pointer contained in the
Pointer (DSP)
register. Since the
stack and can only hold one Dword, nested call
instructions are not allowed.
If the comparisons are false, the LSI53C825A fetches the
next instruction from the address pointed to by the
SCRIPTS Pointer (DSP)
pointer is not modified.
Figure 5.5
illustrates the Transfer Control instruction.
register is stored in the
register with the contents of the
Temporary (TEMP)
register, leaving the instruction
register and the instruction
register and that address
DMA SCRIPTS
Temporary (TEMP)
register is not a
DMA SCRIPTS
DMA
DMA
DMA