Hp C737990900 Manual de usuario Pagina 28

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28 Messages
Synchronous Data Transfer Request
Wide Data Transfer Request
Parallel Protocol Request
Parallel Protocol
Request
04h The drive will never initiate a Parallel Protocol Request transfer
negotiation but will expect the initiator to do so.
If the message is received after selection and before the command phase,
it will then go to message-in phase and respond with a valid response to
complete the negotiation.
Name Code Support
7 6 5 4 3 2 1 0
0
Extended Message (01h)
1
Extended Message Length (03h)
2
SDTR (01h)
3
Transfer Period Factor
4
Req/Ack Offset
7 6 5 4 3 2 1 0
0
Extended Message (01h)
1
Extended Message Length (02h)
2
WDTR (01h)
3
Transfer Width Exponent
7 6 5 4 3 2 1 0
0
Extended Message (01h)
1
Extended Message Length (06h)
2
Parallel Protocol Request (04h)
3
Transfer Period Factor
4
Reserved (0)
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