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4.4.12 MODE SELECT (6)
The normal sequence related to MODE SELECTE (6) of this scanner is listed
below:
Proce>
dure
Bus phase Initiatorπs operation ¨ Æ Targetπs operation
1
2
3
4
5
6
7
8
9
Bus Free
Arbitration
Selection
Message Out
Command
Data In
Status
Message In
Bus Free
Checks Bus Free
Acquires right to use the bus
Selects the target
Selects the logical device
Specifies MODE SELECT (6)
(CDB)
Specifies MODE SELECT
parameter data
Æ
Æ
Æ
Æ
¨
¨
Outputs the BSY
signal
Sets up mode data
Reports the GOOD
status
Reports Command
Complete
Releases the BSY
signal
(1) MODE SELECT (6) command: Command phase (Initiator to Target)
This command is used to set up miscellaneous parameters in peripheral devices.
CDB of this command is shown below:
Byte 0
1
2
3
4
5
Operation code X©15π
Logical unit number
(Reserved)
7 6 5 4 3 2 1 0
PF (Reserved) SP
Parameter list length
Control byte
4 $ 79