Seagate Ultra 320 User Manual
Page 148
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134
Parallel SCSI Interface Product Manual, Rev. A
Table 59:
Typical CDB for 12-byte commands
See notes following Table 61.
Table 60:
Typical CDB for 16-byte commands
Bit
Byte
7
6
5
4
3
2
1
0
0
OPERATION CODE [1]
1
Reserved
SERVICE ACTION (if required) [2]
2
(MSB)
LOGICAL BLOCK ADDRESS (if required) [3]
3
4
5
(LSB)
6
(MSB)
TRANSFER LENGTH (If required) [4]
PARAMETER LIST LENGTH (if required) [5]
ALLOCATION LENGTH (if required) [6]
7
8
9
(LSB)
10
Reserved
11
CONTROL [7]
Bit
Byte
7
6
5
4
3
2
1
0
0
OPERATION CODE [1]
1
Reserved
SERVICE ACTION (if required) [2]
2
(MSB)
Logical Block Address (if required) [3]
3
4
5
(LSB)
6
(MSB)
ADDITIONAL CDB DATA (if required) [9]
7
8
9
(LSB)
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