NES 2.0 Mapper 445

NES 2.0 Mapper 445 denotes the DG574B MMC3-compatible multicart circuit board.

Outer PRG Bank ($5000, write)

D~[.PPP ....]  Address mask: $F003
    +++------- PRG A19..A17

Outer CHR Bank ($5001, write)

D~[.CCC ....]  Address mask: $F003
    +++------- CHR A19..A17

Mode ($5002, write)

D~[...? c.?p]  Address Mask: $F003
        |  +- PRG A17 Mode
        |      0: from MMC3
        |      1: from Outer PRG Bank
        +---- CHR A17 Mode
               0: from MMC3

Lock ($5003, write)

D~[..L. ....]  Address Mask: $F003
     +------- 1: Lock registers $5000-$5003

MMC3-compatible registers

See MMC3.