Semantic search
| Number | Readable | Writable | Description | |
|---|---|---|---|---|
| Pi Peripheral Enable Register | $A0 | Yes | Yes | Enable Pi peripherals: UART, Pi hats, I2C, SPI |
| Pi I2S Audio Control Register | $A2 | Yes | Yes | Pi I2S controls |
| Pi I2S Clock Divide Register | $A3 | Yes | Yes | |
| ESP WiFi GPIO Output Register | $A8 | Yes | Yes | ESP WiFi GPIO Output |
| ESP WiFi GPIO Register | $A9 | Yes | Yes | ESP WiFi GPIO Read/Write |
| Extended Keys 0 Register | $B0 | Yes | No | Read Next keyboard compound keys separately |
| Extended Keys 1 Register | $B1 | Yes | No | Read Next keyboard compound keys separately |
| DivMMC Trap Enable 1 Register | $B2 | Yes | Yes | |
| DivMMC Trap Enable 2 Register | $B4 | Yes | Yes | |
| Debug LED Control Register | $FF | No | Yes | Turns debug LEDs on and off on TBBlue implementations that have them. |