NES 2.0 Mapper 332
NES 2.0 mapper 332 is used for the Super 40-in-1 and Super 500-in-1 multicarts. Its UNIF board name is BMC-WS.
Mask: probably $E001
D~7654 3210
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.H.M BPPp
| | |+++- PRG A14..A16 for CPU $8000-$BFFF and $C000-$FFFF
| | +---- Select PRG A14 Mode
| | 0: PRG A14=CPU A14 (NROM-256)
| | 1: PRG A14=p (NROM-128)
| +------ Select nametable mirroring mode
| 0: Vertical
| 1: Horizontal
+-------- Select PRG A17 and CHR A16
Reset value: $00
Mask: probably $E001
D~7654 3210
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DDMM .Cdc
|||| |++- CHR A13..A14 for PPU $0000-$1FFF if MM=11
|||| +--- CHR A15
||++------ 00: CNROM-256 mode: CHR A13..A14 from CNROM latch
|| 10: CNROM-128 mode: CHR A13 from CNROM latch, CHR A14 from d
|| 11: NROM mode: CHR A13..A14 from dc
++-------- Solder pad check
Reset value: $00
The solder pads connect the latch output directly to PRG-ROM /CE. The menu code, executing from RAM, sets either bit to check whether CPU $8000-$FFFF now returns open bus, and selects a menu with different game counts depending on the result.
D~7654 3210
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.... ..CC
++- CHR A13..A14 for PPU $0000-$1FFF if MM=00
Reset value: $00