Table of Contents
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Name
Parallel Protocol
Request
0
1
2
3
4
0
1
2
3
0
1
2
3
4
28
Messages
Code
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.
Synchronous Data Transfer Request
7
6
Wide Data Transfer Request
7
6
Parallel Protocol Request
7
6
Support
5
4
3
Extended Message (01h)
Extended Message Length (03h)
SDTR (01h)
Transfer Period Factor
Req/Ack Offset
5
4
3
Extended Message (01h)
Extended Message Length (02h)
WDTR (01h)
Transfer Width Exponent
5
4
3
Extended Message (01h)
Extended Message Length (06h)
Parallel Protocol Request (04h)
Transfer Period Factor
Reserved (0)
2
1
0
2
1
0
2
1
0
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