64 Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A
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continued from previous page
Waveform
Description
Symbol [1]
Table [1]
Typical
Asynchronous Data Transfer Characteristics: (continued)
Next CDB Byte Access (Byte 2 of 10)
T23.10.2
4.5-4
0.65 µs
Next CDB Byte Access (Byte 3 of 10)
T23.10.3
4.5-4
0.11 µs
Next CDB Byte Access (Byte 4 of 10)
T23.10.4
4.5-4
0.12 µs
Next CDB Byte Access (Byte 5 of 10)
T23.10.5
4.5-4
0.11 µs
Next CDB Byte Access (Byte 6 of 10)
T23.10.6
4.5-4
0.11 µs
Next CDB Byte Access (Byte 7 of 10)
T23.10.7
4.5-4
0.13 µs
Next CDB Byte Access (Byte 8 of 10)
T23.10.8
4.5-4
0.12 µs
Next CDB Byte Access (Byte 9 of 10)
T23.10.9
4.5-4
0.12 µs
Next CDB Byte Access (Byte 10 of 10)
T23.10.10
4.5-4
0.12 µs
Data In Byte Transfer (parameter)
T24
4.5-12
Data Out Byte Transfer (parameter)
T25
4.5-13
Next Data In Byte Access (parameter)
T26
4.5-12
0.10 µs
Next Data Out Byte Access (parameter)
T27
4.5-13
0.10 µs
Data In Byte Transfer (media) [2]
T28
4.5-12
0.05 µs
Data Out Byte Transfer (media) [2]
T29
4.5-13
0.05 µs
Next Data In Byte access (media [2]
T30
4.5-12
0.10 µs
Next Data Out Byte access (media [2]
T31
4.5-13
0.10 µs
MSG IN Byte Transfer
T32
4.5-5,7
4.5-8,14,15
MSG OUT Byte Transfer
T33
4.5-2
STATUS Byte Transfer
T34
4.5-5,8
4.5-15
Select -> CDB XFER (6 Byte)
8.23 µs
Select -> CDB XFER (10 Byte)
8.86 µs
Reconnect Overhead
6.04 µs
Bus Termin. Overhead
1.59 µs
Synchronous Data Transfer Characteristics:
Request Signal Transfer Period [3]
-
-
various
Notes.
[1] See SCSI-2 Interface Manual P/N 77738479 (called Volume 2), section 4.5
[2] Maximum SCSI asynchronous interface transfer rate is given in section 5.3.
[3] Synchronous Transfer Period is determined by negotiations between an Initiator and a Drive. The Drive
is capable of setting periods as given in section 11.5. See also sections 3.1.5.2 and 3.5.3.2 of the SCSI-
2 Interface Product Manual (P/N 77738479) for a description of synchronous data transfer operation.
General timing diagrams for SCSI interface operation are shown in the SCSI-2 Interface Product Manual
P/N 77738479, Section 4.5. The specific timing values that apply to this drive are listed in Table 11.7-1.
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