| Port Number | $BFF5 |
|---|---|
| Decimal | 49141 |
| Short desc. | AY information |
| Bit Mask | 1011111111110101 |
| Readable | yes |
| Writable | no |
| Subsystem |
bits 7:6 = active AY chip 11 = AY 0 is active 10 = AY 1 is active 01 = AY 2 is active bit 5 = Reserved bits 4:0 = currently selected AY register