A modern take on the classic TIL311
after reset, the counter should increase by one every second
| # | Input | Output |
|---|---|---|
| 0 | latch | segment a |
| 1 | blank | segment b |
| 2 | data 0 | segment c |
| 3 | data 1 | segment d |
| 4 | data 2 | segment e |
| 5 | data 3 | segment f |
| 6 | decimal | segment g |
| 7 | none | decimal |