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Operation Theory
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33
4.5 Timing Characteristic
1.
I_REQ as input data strobe (Rising Edge Active)
t
h
≥
60ns t
I
≥
60ns t
CYC
≥
5 PCI CLK Cycle
t
s
≥
2ns t
n
≥
30ns
2.
I_REQ as input data strobe (Falling Edge Active)
t
s
valid data
D10~DI31
t
n
valid data
IN_R I_REQ
t
cyc
t
l
t
h
t
h
≥
60ns t
I
≥
60ns t
CYC
≥
5 PCI CLK Cycle
t
s
≥
2ns t
n
≥
30ns
IN_ I_REQ
t
l
t
cyc
t
h
t
s
valid data
D10~DI31
t
n
valid data