NES 2.0 Mapper 324
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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.
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)
WRAM must be enabled in the MMC1's registers for writes to be effective. Mirroring is hard-wired.
UNROM latch ($8000-$FFFF)
See INES Mapper 002.
