PxROM: Difference between revisions
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The designation '''PxROM''' covers all boards that use the [[MMC2|Nintendo MMC2]] mapper. The [[iNES]] format assigns [[iNES Mapper 009|mapper 9]] to these boards. | The designation '''PxROM''' covers all boards that use the [[MMC2|Nintendo MMC2]] mapper. The [[iNES]] format assigns [[iNES Mapper 009|mapper 9]] to these boards. | ||
The following boards are known to exist | The following PxROM boards are known to exist: | ||
* | {| border="1" | ||
* | ! Board || PRG ROM || CHR | ||
|- | |||
|PNROM || 128 KB || 128 KB ROM | |||
|- | |||
|PEEOROM || 128 KB || 128 KB ROM | |||
|} | |||
== Overview == | |||
* PRG ROM size: up to 128 KB | |||
* PRG ROM bank size: 16 KB | |||
* PRG RAM: 8 KB plus optional battery | |||
* CHR capacity: up to 128 KB ROM | |||
* CHR bank size: 4 KB | |||
* Nametable [[mirroring]]: Controlled by mapper | |||
* Subject to [[bus conflict]]s: No | |||
== Notes == | |||
The PEEOROM board is used in the re-issue of ''Mike Tyson's Punch-Out!!''. Unlike PNROM, and unlike most other boards used in NES Game Paks sold to the public, it can be configured to support EPROM memory through jumpers on the board. | |||
Revision as of 21:26, 14 November 2010
The designation PxROM covers all boards that use the Nintendo MMC2 mapper. The iNES format assigns mapper 9 to these boards.
The following PxROM boards are known to exist:
| Board | PRG ROM | CHR |
|---|---|---|
| PNROM | 128 KB | 128 KB ROM |
| PEEOROM | 128 KB | 128 KB ROM |
Overview
- PRG ROM size: up to 128 KB
- PRG ROM bank size: 16 KB
- PRG RAM: 8 KB plus optional battery
- CHR capacity: up to 128 KB ROM
- CHR bank size: 4 KB
- Nametable mirroring: Controlled by mapper
- Subject to bus conflicts: No
Notes
The PEEOROM board is used in the re-issue of Mike Tyson's Punch-Out!!. Unlike PNROM, and unlike most other boards used in NES Game Paks sold to the public, it can be configured to support EPROM memory through jumpers on the board.
