Pot pin data read
This register controls a 4 bit bi-direction I/O port that shares the same 4 pins as the 4 pot counters above.
| Bit | Function | Description |
|---|---|---|
| 15 | OUTRY | Output enable for Paula pin 33 |
| 14 | DATRY | I/O data Paula pin 33 |
| 13 | OUTRX | Output enable for Paula pin 32 |
| 12 | DATRX | I/O data Paula pin 32 |
| 11 | OUTLY | Out put enable for Paula pin 36 |
| 10 | DATLY | I/O data Paula pin 36 |
| 09 | OUTLX | Output enable for Paula pin 35 |
| 08 | DATLX | I/O data Paula pin 35 |
| 07-01 | X | Not used |
| 00 | START | Start pots (dump capacitors,start counters) |