LSI 53C810A User Manual
SCSI Timings
7-27
7.6 SCSI Timings
Tables
through
and Figures
through
describe the
LSI53C810A SCSI timing data.
Figure 7.19 Initiator Asynchronous Send
Table 7.17
Initiator Asynchronous Send (5 Mbytes/s)
Symbol
Parameter
Min
Max
Unit
t
1
SACK/ asserted from SREQ/ asserted
10
–
ns
t
2
SACK/ deasserted from SREQ/ deasserted
10
–
ns
t
3
Data setup to SACK/ asserted
55
–
ns
t
4
Data hold from SREQ/ deasserted
20
–
ns
SREQ/
SACK/
SD[7:0],
SDP/
t
1
t
2
t
3
t
4
n + 1
n
Valid n
Valid n + 1
n + 1