Quantum DLT 4000 Manual descarregar pdf (Página 81)

SCSI Description

Quantum DLT 4000 Tape Drive 3-19

Table 3–5 Information Transfer Phases

MSG

Signal

C/D I/O Phase Name Direction of Transfer/ Definition

0 0 0 DATA OUT Initiator to drive.

Allows the drive to request that data be sent from

the initiator to the drive.

0 0 1 DATA IN Drive to initiator.

Allows the drive to send data to the initiator.

0 1 0 COMMAND Initiator to drive.

Allows the drive to request a command from the

initiator.

0 1 1 STATUS Drive to initiator.

Allows the drive to send status information be

sent from the drive to the initiator.

1 1 0 MESSAGE 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.

1 1 1 MESSAGE IN Drive to initiator.

Allows the drive to send message(s) to the

initiator.

1 2 ... 76 77 78 79 80 81 82 83 84 85 86 ... 299 300

Sem comentários

Quantum DLT 4000 Manual Página 81