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6-52 Electrical Specifications
6.5 SCSI Timing Diagrams
The tables and diagrams in this section describe the LSI53C875A SCSI
timings.
Figure 6.33 Initiator Asynchronous Send
Table 6.37 Initiator Asynchronous Send
Symbol Parameter Min Max Unit
t
1
SACK/ asserted from SREQ/ asserted 5 – ns
t
2
SACK/ deasserted from SREQ/ deasserted 5 – ns
t
3
Data setup to SACK/ asserted 55 – ns
t
4
Data hold from SREQ/ deasserted 0 – ns
SREQ/
SACK/
SD[15:0]/
SDP[1:0]/
t
1
t
2
t
3
t
4
n+1
n
Valid n Valid n + 1
n+1