| CPU reference | |
|---|---|
| Processor | Ricoh 5A22, based on a 16-bit 65c816 core |
| Clock rates (NTSC) |
Input: 21.47727 MHz Bus: 3.58 MHz, 2.68 MHz, or 1.79 MHz |
| Clock rates (PAL) |
Input: 21.28137 MHz Bus: 3.55 MHz, 2.66 MHz, or 1.77 MHz |
| Buses | 24-bit and 8-bit address buses, 8-bit data bus |
| Additional features |
|
| Video reference | |
|---|---|
| Resolutions |
Progressive: 256 × 224, 512 × 224, 256 × 239, 512 × 239 Interlaced: 512 × 448, 512 × 478 |
| Pixel depth | 2, 4, 7, or 8 bpp indexed; 8 or 11 bpp direct |
| Total colors | 32768 (15-bit) |
| Sprites | 128, 32 max per line; up to 64 × 64 pixels |
| Backgrounds | Up to 4 planes; each up to 1024 × 1024 pixels |
| Effects |
|