Tandberg Data SLR7-140 PROGRAMMER Manual page 61

<message-in>
<selection>
<command>
<data-in>
<data-out>
<status>
<completed>
<completed-link>
Tandberg Data
A message-out sequence may transfer a single message or
multiple messages.
include some message-in phases (as may be the case when
the Drive rejects a message out). Finally the message-
out sequence may end up in a BUS FREE phase (as it will
after messages like ABORT or RESET).
::= MESSAGE-IN |
MESSAGE-IN <message-out>
A message-in sequence may transfer a message to the
Initiator. After the message-in transfer a message-out
may also occur (as may be the case when the Initiator
rejects or aborts a message-in).
::= <initiator-part> <message-out>
Note that the SCSI-2 and SCSI-3 specifications both call
for a message out phase transferring an IDENTIFY message
[2], [5].
::= COMMAND |
COMMAND <message-out>
The command sequence transfers a complete CDB (6 or 10
bytes). A message
Initiator asserts ATN during the command transfer.
::= DATA-IN |
DATA-IN <message-out>
The data in sequence transfers one or more data bytes
from the Drive to the Initiator. A message out sequence
will follow if the Initiator asserts ATN during the data
transfer.
::= DATA-OUT |
DATA-OUT <message-out>
The data out sequence transfers one or more data bytes
from the Initiator to the Drive. A message out sequence
will follow if the Initiator asserts ATN during the data
transfer.
::= STATUS |
STATUS <message-out>
The status sequence transfers a single status byte to
the Initiator. A message out sequence will follow if the
Initiator asserts ATN during the status transfer.
::= <status> <message-in> BUS-FREE
When an unlinked command has completed execution, the
Drive transfers a status byte and a message byte and
goes to BUS FREE.
::= <status> <message-in>
3-5 Tandberg SLR Product Line SCSI Functional Specifications
The message-out
out sequence will
Logical Characteristics
sequence may also
follow if the