TxROM
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The generic designation TxROM refers to cartridge boards made by Nintendo that use the Nintendo MMC3 mapper.
The following TxROM boards are known to exist:
| Board | PRG ROM | PRG RAM | CHR |
|---|---|---|---|
| TEROM | 32 KB | 32, 64 KB ROM | |
| TFROM | 128, 256, 512 KB | 32, 64 KB ROM | |
| TGROM | 128, 256, 512 KB | 8 KB RAM | |
| TKROM | 128, 256, 512 KB | 8 KB | 128, 256 KB ROM |
| TKSROM | 128, 256, 512 KB | 8 KB | 128 KB ROM |
| TLROM | 128, 256, 512 KB | 128, 256 KB ROM | |
| TLSROM | 128, 256, 512 KB | 128 KB ROM | |
| TNROM | 128, 256, 512 KB | 8 KB | 8 KB RAM |
| TR1ROM | 128, 256, 512 KB | 64 KB ROM + 4 KB VRAM (4-screen Mirroring) | |
| TSROM | 128, 256, 512 KB | 8 KB | 128, 256 KB ROM |
| TQROM | 128 KB | 32, 64 KB ROM + 8 KB RAM | |
| TVROM | 64 KB | 32, 64 KB ROM + 4 KB VRAM (4-screen Mirroring) |
