Operation Theorem • 27
4.5 Timing Characteristic
1. I_REQ as input data strobe (Rising Edge Active)
th ≥ 60ns tI ≥ 60ns tCYC ≥ 5 PCI CLK Cycle
ts ≥ 2ns tn ≥ 30ns
2. I_REQ as input data strobe (Falling Edge Active)
ts
valid data
D10~DI31
tn
valid data
IN_R I_REQ
tcyc
tlth
th ≥ 60ns tI ≥ 60ns tCYC ≥ 5 PCI CLK Cycle
ts ≥ 2ns tn ≥ 30ns
IN_ I_REQ
tl
tcyc
th
ts
valid data
D10~DI31
tn
valid data