NES 2.0 Mapper 324: Difference between revisions

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(Created page with "Category:Multicart mappers NES 2.0 Mapper 324 is used for Farid's homebrew 8-in-1 UNROM multicart board. It consists of an UNROM latch with an additional outer bank regist...")
 
m (No WRAM here.)
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[[Category:Multicart mappers]]
[[Category:Multicart mappers]]
NES 2.0 Mapper 324 is used for Farid's homebrew 8-in-1 UNROM multicart board. It consists of an UNROM latch with an additional outer bank register. Its UNIF board name is '''FARID_UNROM_8-IN-1'''.
NES 2.0 Mapper 324 is used for Farid's homebrew 8-in-1 UNROM multicart board. It consists of an UNROM latch with an additional outer bank register. Mirroring is hard-wired. Its UNIF board name is '''FARID_UNROM_8-IN-1'''.


==Outer Bank Register ($F000-$FFF7, write)==
==Outer Bank Register ($F000-$FFF7, write)==
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   |+++------ Select 128 KiB outer PRG-ROM bank
   |+++------ Select 128 KiB outer PRG-ROM bank
   +--------- Clock Generator (must be 1)
   +--------- Clock Generator (must be 1)
WRAM must be enabled in the MMC1's registers for writes to be effective. Mirroring is hard-wired.


==UNROM latch ($8000-$FFFF)==
==UNROM latch ($8000-$FFFF)==

Revision as of 20:33, 16 May 2018

NES 2.0 Mapper 324 is used for Farid's homebrew 8-in-1 UNROM multicart board. It consists of an UNROM latch with an additional outer bank register. Mirroring is hard-wired. Its UNIF board name is FARID_UNROM_8-IN-1.

Outer Bank Register ($F000-$FFF7, write)

Mask: $8000?

D~7654 3210
  ---------
  1OOO L...
  |||| +---- 1=Lock Outer Bank
  |+++------ Select 128 KiB outer PRG-ROM bank
  +--------- Clock Generator (must be 1)

UNROM latch ($8000-$FFFF)

See INES Mapper 002.

See also

NesDev discussion