LSI 53C810A User Manual

6-30

Instruction Set of the I/O Processor

illustrates the register bit values that represent a Transfer

Control instruction.

31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9

8

7

6

5

4

3

2

1

0

31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9

8

7

6

5

4

3

2

1

0

DSPS Register

DCMD Register

DBC Register

Wait for Valid Phase

Compare Phase

Compare Data

Jump if: True=1, False=0

Interrupt on the Fly

Carry Test

0 (Reserved)

Relative Addressing Mode

I/O

C/D

MSG

Opcode Bit 0

Opcode Bit 1

Opcode Bit 2

1 - Instruction Type - Transfer Control

0 - Instruction Type - Transfer Control

Mask for Compare

Data to be compared
with the SCSI First
Byte Received