TFFE Primitive |
Inputs |
Output |
||||
---|---|---|---|---|---|
CLRN |
PRN |
ENA |
T |
CLK |
Q |
L |
H |
X |
X |
X |
L |
H |
L |
X |
X |
X |
H |
L |
L |
X |
X |
X |
Illegal |
H |
H |
L |
X |
X |
Qo* |
H |
H |
H |
L |
Qo |
|
H |
H |
H |
H |
Toggle |
|
H |
H |
X |
X |
L |
Qo |
* Qo = level of Q before clock pulse
All flipflops are positive-edge-triggered.