NES 2.0 Mapper 301 is used for GG1 multicarts. Its UNIF board name is BMC-8157.
Mask: $8000 A~FEDC BA98 7654 3210 ------------------- .... ..PD POOI IIM. || |||| ||+- Select nametable mirroring type || |||| || 0: Vertical || |||| || 1: Horizontal || |||+-++-- Select 16 KiB inner PRG-ROM bank at CPU $8000-$BFFF || |++------ Select 128 KiB outer PRG-ROM bank +|-+-------- Select 16 KiB inner PRG-ROM bank at CPU $C000-$FFFF | 0: bank 0 | 1: same as CPU $8000-$BFFF (NROM-128) | 2/3: bank 7 (UNROM) +---------- Select 512 KiB outer PRG-ROM bank
Categories: Multicart mappers