Fujitsu M3097G User Manual
4.4.10 SEND command
The following table shows the normal sequence of the SEND command when used
with this scanner.
with this scanner.
Step
Bus phase
Initiator operation
¨ Æ
Target operation
1
BUS FREE
Verifies bus free
2
ARBITRATION
Obtains bus>usage
right
right
3
SELECTION
Selects target
Æ
Drives BSY signal
4
MESSAGE OUT
Selects logical unit
Æ
5
COMMAND
Specifies SEND
(CDB)
(CDB)
Æ
6
DATA OUT
Æ
Transfer data
7
STATUS
¨
Reports GOOD status
8
MESSAGE IN
¨
Reports Command Complete
Releases BSY signal
9
BUS FREE
(1)
SEND command: COMMAND phase (initiator Æ target)
The SEND command is used by an initiator to send data to a target. The CDB of
this command is shown in the following illustration.
this command is shown in the following illustration.
Byte 0
1
2
3
4
5
6
7
8
9
Transfer identification
Operation code X©2Aπ
Logical unit number
RelAdr
(Reserved)
Transfer length
Control byte
a a a a a a a a a a a a a a
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a a a a a a a a a a a a a a
7
a a a a a a a a a a a a a a
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a a a a a a a a a a a a a a
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6
a a a a a a a a a a a a a
a a a a a a a a a a a a a
a a a a a a a a a a a a a
a a a a a a a a a a a a a
5
a a a a a a a a a a a a a a
a a a a a a a a a a a a a a
a a a a a a a a a a a a a a
a a a a a a a a a a a a a a
4
a a a a a a a a a a a a a
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a a a a a a a a a a a a a
a a a a a a a a a a a a a
3
a a a a a a a a a a a a a a
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a a a a a a a a a a a a a a
2
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a a a a a a a a a a a a a
1
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a a a a a a a a a a a a a a
a a a a a a a a a a a a a a
a a a a a a a a a a a a a a
0
Transfer data type
(Reserved)
a a a a a a a a a a
a a a a a a a a a a
a a a a a a a a a a
a a a a a a a a a a
(MSB)
a a a a a a a a a a
a a a a a a a a a a
a a a a a a a a a a
a a a a a a a a a a
(LSB)
a a a a a a a a a a
a a a a a a a a a a
a a a a a a a a a a
a a a a a a a a a a
(LSB)
a a a a a a a a a a
a a a a a a a a a a
a a a a a a a a a a
a a a a a a a a a a
(MSB)
4 $ 68