NES 2.0 Mapper 441

NES 2.0 Mapper 441 denotes the 841026C and 850335C multicart circuit boards. It is similar to NES 2.0 Mapper 391 in functionality, but the register bits arranged differently.

Known cartridges:

• 1996 Power Rangers V 4-in-1 (MK-412)

Outer Bank and Mode Register ($6000-$7FFF, write)

D~[LcCC pNPP]
   |||| ||++-- PRG A18..A17
   |||| |+---- 1=NROM-256 mode
   |||| +----- 0=PRG A17 from MMC1, 1=PRG A17 from PP
   ||++------- CHR A18..A17
   |+--------- 0=CHR A17 from MMC1, 1=CHR A17 from CC
   +---------- 1=Lock Outer Bank Register

• WRAM must be enabled in $A001.7 before writing to this register.
• NROM-256 mode forces MMC3's CPU A14 input to GND to make MMC3 bank registers 6 and 7 apply to the entire CPU $8000-$FFFF range, with PRG A13 and PRG A14 being replaced by CPU A13 and A14, respectively.

MMC3-compatible registers

See MMC3.