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MESSAGE REJECT
RESTORE
POINTERS
SAVE DATA
POINTER
IGNORE WIDE
RESIDUE
ABORT TASK SET
TARGET RESET
EXTENDED
MESSAGE
Tandberg Data
The
Drive
sends
Initiator
if
it
messages listed in the message out table shown below
(table
6-2).
The
message to the Initiator if it receives a MESSAGE REJECT
message following phases other than a MESSAGE-IN phase.
This message will be sent by the Drive to the Initiator
before the Drive attempts a retransfer of Data or a
Status Byte.
This message will be sent by the Drive to the Initiator
before
sending
Initiator that a pointer save operation is advised.
This two-byte message will be sent by the Drive to the
Initiator to indicate that the number of valid data
bytes sent during the last REQ/ACK handshake of a DATA
IN phase is less than the negotiated transfer width. The
message will be sent immediately following the DATA IN
phase.
The
second
number of invalid data bytes transferred, and will be
set to 01h.
6.2.
Message Out
The Drive supports the Message-Out Bytes shown in the
table below:
Message Name
ABORT TASK SET
TARGET RESET
EXTENDED MESSAGE
IDENTIFY
INITIATOR DETECTED ERROR
MESSAGE PARITY ERROR
MESSAGE REJECT
NO OPERATION
Table 6-2:
Abort the current operation. The Drive goes to the BUS
FREE phase. No Status or ending Message will be sent
(see section 6.5 for details on the ABORT TASK SET
message handling).
Abort the current operation. The Drive goes to the BUS
FREE phase. No Status or ending Message will be sent.
Possible
data
in
transferred to the Initiator nor written to the tape.
Possible pending error conditions will be cleared and
reservations are released. This message results in a
hard reset, ref. section 3.5.2.
This message is sent by the Initiator to the Drive as
the first byte of a multiple byte message. See Section
6.3 for a description of the extended messages.
6-3
Tandberg SLR Product Line SCSI Functional Specifications
a
MESSAGE
REJECT
receives
a
message
Drive
also
sends
the
DISCONNECT
byte
of
the
The Message-Out Set
the
data
buffer
Message System
message
to
other
then
a
MESSAGE
message
to
inform
message
contains
Input/Output
Hex Code
O
O
I/O
I/O
80+
O
O
I/O
O
will
neither
the
the
REJECT
the
the
06
0C
01
05
09
07
08
be
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