Fujitsu M3097DG Oem Manual page 170

Scanner Interface
A.4.13 MODE SENSE (6)
The normal MODE SENSE (6) sequence for the scanner is as follows:
Step
1 Bus Free
2 (Arbitration)
3 Selection
4 (Message Out)
5 Command
6 Data In
7 Status
8 Message In
9 Bus Free
(1) MODE SENSE (6) command: Command phase (Initiator to Target)
The MODE SENSE (6) command is used for the target to report mode parameters to the initiator.
The command descriptor block (CDB) is as follows:
7
Byte 0
1
Logical unit number
2
PC
3
4
5
Appendix A-100
Bus phase Initiator operation
Checks Bus Free
Acquires the bus use
right
Selects the target
Selects the logical
device
Specifies MODE
SENSE (6) (CDB)
Specifies MODE
SENSE parameter
data
6 5 4
Operation code X'1A'
Reserved
Allocation length
Control byte
← →
→
→
→
→
←
←
3 2
DBD
Page code
Reserved
Target operation
Drives the BSY signal
Reports mode data
Reports the GOOD status
Reports message
(Command complete)
Releases the BSY signal
1 0
Reserved