Message Reject Message Handling; Message-In Phase; Message-Out Phase; Table 6-8: Response To Message Reject - Tandberg Data SLR7-140 PROGRAMMER Manual

Last Message-In
DISCONNECT
IDENTIFY
IGNORE WIDE RESIDUE
LINKED COMMAND
COMPLETE
LINKED COMMAND
COMPLETE W/FLAG
MESSAGE REJECT
SAVE DATA POINTER
SYNCHRONOUS DATA
TRANSFER REQUEST
TASK COMPLETE
WIDE DATA TRANSFER
REQUEST
Tandberg Data
6.4.

Message Reject Message Handling

This section specifies the use of the MESSAGE REJECT
message in both message-in and message-out phases.
6.4.1.

Message-In Phase

The drive sends
following instances:
When an unsupported message has been received from
the Initiator. Supported messages are shown in table
6-2.
When a MESSAGE REJECT message has been received after
a phase that was not a message-in phase.
6.4.2.

Message-Out Phase

If, after a MESSAGE-IN phase, the Initiator asserts ATN
and transfers a REJECT message, the Drive will react as
shown in the table below:
Action Taken
The Drive will not disconnect any more until an IDENTIFY message with the
Disconnect Privilege bit set to one is received.
The current command is terminated and the drive goes to BUS FREE.
The reject is ignored and the current command continues execution.
The current command is terminated and the drive goes to BUS FREE.
The current command is terminated and the drive goes to BUS FREE.
The reject is ignored and the current command continues execution.
Same as for a DISCONNECT message.
The Drive goes back to asynchronous data transfer.
Ignore the REJECT message (the drive goes to BUS FREE).
The Drive goes back to 8-bit data transfer.
Table 6-8: Response to MESSAGE REJECT
If the MESSAGE REJECT message is sent following phases
other than MESSAGE-IN, the Drive will respond by sending
a MESSAGE REJECT message.
6-11 Tandberg SLR Product Line SCSI Functional Specifications
a MESSAGE REJECT
Message System
message in the