Timing_Diagrams
Time
step 1
Clock signal
Rising edge signal
Falling edge signal
Tri-state & Bus
Approach used:
0 → 1
0 → X
0 → Z
Rising
edge
transitions
0 → 0
1 → 1
1 → X
1 → Z
1 → 0
X → 1
X → X
X → Z
X → 0
Z → 1
Z → X
Z → Z
Z → 0
Valid → Z
Invalid → valid
Invalid → Z
Valid → Invalid
Time
cut
Valid → Valid
Invalid → Invalid
Gray 20%
Valid
Valid & Invalid
Time
step 2
0 → 1
0 → X
0 → Z
Falling
edge
transitions
0 → 0
1 → 1
1 → X
1 → Z
1 → 0
X → 1
X → X
X → Z
X → 0
Z → 1
Z → X
Z → Z
Z → 0
Valid → Z
Invalid → valid
Invalid → Z
Valid → Invalid
Valid → Valid
Invalid → Invalid
Valid1 → Valid2
Valid1 → Valid2
Sampling
Z → Valid
Z → Valid
Clock
Clock