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SCSI Timing Diagrams 6-55
Figure 6.36 Target Asynchronous Receive
Table 6.40 Target Asynchronous Receive
Symbol Parameter Min Max Unit
t
1
SREQ/ deasserted from SACK/ asserted 5 – ns
t
2
SREQ/ asserted from SACK/ deasserted 5 – ns
t
3
Data setup to SACK/ asserted 0 – ns
t
4
Data hold from SREQ/ deasserted 0 – ns
Table 6.41 SCSI-1 Transfers (5.0 Mbytes)
Symbol Parameter Min Max Unit
t
1
Send SREQ/ or SACK/ assertion pulse width 80 – ns
t
2
Send SREQ/ or SACK/ deassertion pulse width 80 – ns
t
1
Receive SREQ/ or SACK/ assertion pulse width 70 – ns
t
2
Receive SREQ/ or SACK/ deassertion pulse width 70 – ns
t
3
Send data setup to SREQ/ or SACK/ asserted 24 – ns
t
4
Send data hold from SREQ/ or SACK/ asserted 54 – ns
t
5
Receive data setup to SREQ/ or SACK/ asserted 14 – ns
t
6
Receive data hold from SREQ/ or SACK/ asserted 24 – ns
SREQ/
SACK/
SD[15:0]/,
SDP[1:0]/
n
n+1
t
2
t
1
t
3
t
4
Valid n Valid n + 1
n+1
n