NES 2.0 Mapper 395
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NES 2.0 Mapper 395 denotes the MMC3-compatible Realtec 8210 multicart PCB. Both outer bank registers are selected through the MMC3's WRAM interface and overlay any actual WRAM.
Outer Bank Register 1 ($6000)
Mask: $E010 D~7654 3210 --------- ..BA C... || +---- PRG A20 ++------ PRG/CHR A19..18
Outer Bank Register 2 ($6010)
Mask: $E010 D~7654 3210 --------- LcCA p..B |||| | +- PRG A17 if p=1 |||| +---- 0=PRG A17 from MMC3 (256 KiB inner PRG bank) |||| 1=PRG A17 from B (128 KiB inner PRG bank) |||+------ CHR A17 if c=1 ||+------- CHR A20 |+-------- 0=CHR A17 from MMC3 (256 KiB inner CHR bank) | 1=CHR A17 from A (128 KiB inner CHR bank) +--------- 1=Lock outer bank