View source for PxROM

[[Category:Nintendo licensed mappers]]
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.

== Board Types ==
The following PxROM boards are known to exist:
{| class="tabular"
! 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.