Statemachine that on each clock pulse subttracts one on the 7 segment display. Starting in F and finishing on 0.
Connect a 1Hz square signal as clock and by turning input 1 to 1, the counter will start counting down stopping on 0. On reset the value will return to F.
| # | Input | Output | Bidirectional |
|---|---|---|---|
| 0 | Activation signal | segment a | |
| 1 | segment b | ||
| 2 | segment c | ||
| 3 | segment d | ||
| 4 | segment e | ||
| 5 | segment f | ||
| 6 | segment g | ||
| 7 | dot |