memory_map
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Memory map
The gamepad has a pretty simple memory map.
| Start | End | Desc. |
|---|---|---|
| 00000000 | 3FFFFFFF | main RAM (mirrored every 4MB) |
| F0000000 | ? | I/O |
| FFFF0000 | ? | presumably bootloader |
It is not yet known how to access the bootloader or if it exists at FFFF0000. That region reads as zero.
I/O map
The I/O region is split into basic blocks for the various hardware components.
| Base | Desc. |
|---|---|
| F0000000 | General registers |
| F0000400 | Timers |
| F0000800 | ? |
| F0001200 | IRQ controller |
| F0001300 | IRQ controller |
| F0001400 | IRQ controller |
| F0001900 | IRQ controller |
| F0004000 | DMA |
| F0004400 | SPI |
| F0005000 | GPIO |
| F0005100 | GPIO |
| F0005400 | Audio |
| F0005800 | I2C general registers |
| F0005C00 | I2C bus 1 |
| F0006000 | I2C bus 2 |
| F0006400 | I2C bus 3 |
| F0006800 | I2C bus 4 |
| F0009400 | Video |
| F0009500 | Video |
| F0009600 | Video capture? |
| F0009700 | Video capture? |
memory_map.1726937975.txt.gz · Last modified: 2024/09/21 16:59 by arisotura