SCSI Description
Quantum DLT 7000 Tape System 3-19Table 35 Information Transfer Phases
MSG
Signal
C/D I/O Phase Name Direction of Transfer/ Definition
000DATA OUT Initiator to drive.
Allows the drive to request that data be sent from
the initiator to the drive.
001DATA IN Drive to initiator.
Allows the drive to send data to the initiator.
010COMMAND Initiator to drive.
Allows the drive to request a command from the
initiator.
011STATUS Drive to initiator.
Allows the drive to send status information be sent
from the drive to the initiator.
110MESSAGE OUT Initiator to drive.
Allows the drive to request that message(s) be sent
from the initiator to the drive; the drive invokes
this phase in response to the attention condition
created by the initiator.
The drive handshakes byte(s) until the ATN signal
is negated, except when rejecting a message.
See 3.5.5.4 Message Out-Additional Conditions.
111MESSAGE IN Drive to initiator.
Allows the drive to send message(s) to the
initiator.