Figure3.7 intfly format, Table 3.7 scsi phase bit values (intfly format), Intfly format – Avago Technologies LSI53C1010 User Manual
Page 63: Scsi phase bit values (intfly format)
Instruction Descriptions
3-23
Field(s)
This command has the following fields:
The values in
define the SCSI information transfer phase. The
LSI53C10XX chips, with dual transition timing capabilities define two
transfer phases, ST for single transition timing, and DT for dual transition
timing.
Figure 3.7
INTFLY Format
31
30
29
27 26
24 23 22
21
20
19
18
17
16 15
8 7
0
DCMD Register
DBC Register
Instr Type
Opcode
SCSI
Phase
R
Carry
Test
Int
on
Fly
True
Comp
Data
Comp
Phase
Wait
Mask
Data
1
0
0 1
1 x x x
0
0
0
1
x
x
x
x
x
x x x x x x x x x x x x x x x
31
0
DSPS Register
int_value
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
Instruction
Type
Transfer Control.
Opcode
Interrupt on the Fly instruction.
SCSI Phase
These bits reflect the actual values of the SCSI phase lines.
Table 3.7
SCSI Phase Bit Values (INTFLY Format)
1
Phase
Message
Command/Data
Input/Output
DATA_OUT
2
(ST_DATA_OUT)
3
0
0
0
DATA_IN
2
(ST_DATA_IN)
3
0
0
1