Operation (X'08'): Message Out Phase (Initiator → Target); Message Parity Error (X'09'): Message Out Phase (Initiator → Target); Bus Device Reset (X'0C'): Message Out Phase (Initiator → Target) - Fujitsu Scan Partner 300C Instruction Manual

Upon receiving the MESSAGE REJECT message, this scanner takes action as shown in the following table
Message rejected
COMMAND COMPLETE
MESSAGE REJECT
No message issued
NO OPERATION (X'08'): MESSAGE OUT phase (initiator → target)
4.6.2.5
This message is issued in response to a message request from the target and indicates that the initiator does have a valid
message.
The initiator does not intend to issue another message by activating ATN before it deactivates the ACK of the
OPERATION message.
MESSAGE PARITY ERROR (X'09'): MESSAGE OUT phase (initiator → target)
4.6.2.6
This message indicates that the initiator detected a parity error in the message received. The target resends that message.
The initiator does not intend to issue another message by activating ATN before it deactivates the ACK of the MESSAGE
PARITY ERROR message.
Upon receiving the MESSAGE PARITY ERROR message, this scanner takes action as shown in the following table.
BUS DEVICE RESET (X'0C'): MESSAGE OUT phase (initiator → target)
4.6.2.7
This message addresses any initiators that are operating, or waiting for operation, on the target. The message initializes
those initiators by resetting their input/output operations.
The BUS DEVICE RESET message is transferred in the asynchronous mode.
Phase when ATN is detected
MESSAGE IN
Other
* 1 This scanner retries three times with the message in the MESSAGE IN phase. If the third retry
fails, the scanner immediately moves to the BUS FREE phase.
Table 4-26
Action
Moves to the BUS FREE phase. (It is not
assumed as an error.)
Responds the CHECK CONDITION status
Moves to the BUS FREE phase
Table 4-27
Action
Moves to the MESSAGE IN phase and
resends the message (*1)
Moves to the BUS FREE phase
4-54