Upon receiving the MESSAGE REJECT message, this scanner takes action as shown in the following table

 

Table 4-26

 

 

Message rejected

Action

 

 

COMMAND COMPLETE

Moves to the BUS FREE phase. (It is not

 

assumed as an error.)

MESSAGE REJECT

Responds the CHECK CONDITION status

No message issued

Moves to the BUS FREE phase

4.6.2.5NO OPERATION (X'08'): MESSAGE OUT phase (initiator target)

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.

4.6.2.6MESSAGE PARITY ERROR (X'09'): MESSAGE OUT phase (initiator target)

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.

Table 4-27

Phase when ATN is detected

Action

MESSAGE IN

Moves to the MESSAGE IN phase and

 

resends the message (*1)

Other

Moves to the BUS FREE phase

*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.

4.6.2.7BUS DEVICE RESET (X'0C'): MESSAGE OUT phase (initiator target)

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.

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Fujitsu 600C manual No Operation X08 Message OUT phase initiator → target, Message rejected Action