NES 2.0 Mapper 523: Difference between revisions
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NewRisingSun (talk | contribs) (Created page with "Category:MMC3-like mappersCategory:Mappers with scanline IRQs NES 2.0 Mapper 523 is used for the 晶科泰 (Jncota) re-release of the game 封神榜: 伏魔三太子 (...") |
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* CHR-ROM A10 is directly connected to PPU A10, | * CHR-ROM A10 is directly connected to PPU A10, | ||
* CHR-ROM A11-A18 are connected to the MMC3 clone's CHR A10-A17 outputs, | * CHR-ROM A11-A18 are connected to the MMC3 clone's CHR A10-A17 outputs, | ||
* the | * the MMC3 clone's PPU A10 input is connected to Ground. | ||
With the MMC3 clone set to [[INES Mapper 176#MMC3-compatible registers ($8000/$8001, $A000, $C000/$C001, $E000/$E001)|Extended MMC3 Mode]], the bank registers at $8000 therefore change from their normal to the following meanings: | With the MMC3 clone set to [[INES Mapper 176#MMC3-compatible registers ($8000/$8001, $A000, $C000/$C001, $E000/$E001)|Extended MMC3 Mode]], the bank registers at $8000 therefore change from their normal to the following meanings: | ||
$0: Select 2 KiB CHR bank at PPU $0000-$07FF (or $1000-$17FF) | $0: Select 2 KiB CHR bank at PPU $0000-$07FF (or $1000-$17FF) | ||
Latest revision as of 15:12, 13 April 2018
NES 2.0 Mapper 523 is used for the 晶科泰 (Jncota) re-release of the game 封神榜: 伏魔三太子 (Fēngshénbǎng: Fúmó Sān Tàizǐ), originally released by C&E on INES Mapper 246. It is basically identical to the Waixing FS005 board, except that ...
- Mirroring is hard-wired (to Horizontal in Fēngshénbǎng's case),
- CHR-ROM A10 is directly connected to PPU A10,
- CHR-ROM A11-A18 are connected to the MMC3 clone's CHR A10-A17 outputs,
- the MMC3 clone's PPU A10 input is connected to Ground.
With the MMC3 clone set to Extended MMC3 Mode, the bank registers at $8000 therefore change from their normal to the following meanings:
$0: Select 2 KiB CHR bank at PPU $0000-$07FF (or $1000-$17FF) $1: Select 2 KiB CHR bank at PPU $0800-$0FFF (or $1800-$1FFF) $2: Select 2 KiB CHR bank at PPU $1000-$17FF (or $0000-$07FF) $3: No function $4: Select 2 KiB CHR bank at PPU $1800-$1FFF (or $0800-$0FFF) $5: No function $6: Select 8 KiB PRG ROM bank at $8000-$9FFF (or $C000-$DFFF) $7: Select 8 KiB PRG ROM bank at $A000-$BFFF $8: Select 8 KiB PRG ROM bank at $C000-$DFFF (or $8000-$9FFF) $9: Select 8 KiB PRG ROM bank at $E000-$FFFF $A: No function $B: No function
