Synchronous Data Transfer; Synchronous Data Transfer Periods Supported; Req/Ack Offset - Seagate ST11200N Product Manual

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11.5

Synchronous data transfer

11.5.1

Synchronous data transfer periods supported

Table 11.5-1 and 11.5-2 list Synchronous Data transfer periods supported by the drive. The data transfer
period to be used by the drive and the initiator is established by an exchange of messages during the
Message Phase of operation. See the section on message protocol in the SCSI Interface manual.*
M (Decimal)
25
31
37
50
62
75
87
100
112
125
137
150
162
175
187
200
11.5.2

REQ/ACK offset

The maximum REQ/ACK offset supported by the ST11200 family is 15 (0Fh).
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*SCSI Interface Product Manual, P/N 77738479
Product Manual - Hawk 1 Family SCSI-2 (Volume 1), Rev. D
Table 11.5-1. Synchronous data transfer periods
Transfer Period (M times 4 nanoseconds)
100
125
150
200
250
300
350
400
450
500
550
600
650
700
750
800