Table of Contents
Advertisement
Product Manual - Hawk 2 Family SCSI-2 (Volume 1), Rev. B
_________________________________________________________________________________________
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 Hawk 2 family is 15 (0Fh).
11.6
Physical interface
Figure 11.6-1 shows the locations of the physical interface components for the drive. Shown are the locations of
the D.C. power connector, the SCSI interface connector, the I/O line terminators, and the drive select and option
select header.
The "NC" version of this drive has an 80 pin I/O connector that has the SCSI interface signals, DC power and
some option select functions all together in the same 80 pin connector. See Figure 11.6.3-1b and Table 11.6.3-1c.
Details of the physical, electrical and logical characteristics are given in paragraphs following, while the SCSI
operational aspects of Seagate drive interfaces are given in the Seagate SCSI Interface Product Manual, P/N
77738479.
__________
*SCSI Interface Product Manual, P/N 77738479
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
49
Advertisement
Table of Contents
