NES 2.0 Mapper 286 is used for Benshieng multicarts. Its UNIF mapper is BMC-BS-5. The hardware latches the address rather than the data bus bits.
FEDC BA98 7654 3210 ------------------- 100. RR.. .... BBBB || ++++- Select 8 KiB CHR-ROM bank number || in range selected by address bits 8-9 ++------------- Select 8 KiB CHR-ROM bank 00: PPU $0000-$07FF 01: PPU $0800-$0FFF 10: PPU $1000-$17FF 11: PPU $1800-$1FFF
The AND mask to which the PRG-ROM select responds is determined in bits 4-7 by a DIP switch.
FEDC BA98 7654 3210 ------------------- 101. RR.. DDDD BBBB || |||| ++++- Select 8 KiB PRG-ROM bank number || |||| in range selected by address bits 8-9 || ++++------ AND mask from DIP switch || 01: Setting #1 || 02: Setting #2 || 04: Setting #3 || 08: Setting #4 ++------------- Select 8 KiB PRG-ROM bank 00: CPU $8000-$9FFF 01: CPU $A000-$BFFF 10: CPU $C000-$DFFF 11: CPU $E000-$FFFF
Categories: Multicart mappers