NES 2.0 Mapper 312

From NESdev Wiki
Revision as of 19:35, 28 September 2020 by Lidnariq (talk | contribs) (→‎See also: actual link to PCB photos)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigationJump to search

NES 2.0 Mapper 312 is used for Kaiser's bootleg version of Highway Star. Its UNIF board name is UNL-KS7013B.

Banks

  • CPU $8000-$BFFF: Switchable 16 KiB PRG-ROM bank
  • CPU $C000-$FFFF: Fixed 16 KiB PRG-ROM bank #7
  • PPU $0000-$1FFF: Unbanked 8 KiB of CHR-RAM

Registers

PRG-ROM Select ($6000-$7FFF)

Mask: $E000

D~7654 3210
  ---------
  .... .PPP
        +++- Select 16 KiB PRG-ROM bank at CPU $8000-$BFFF

Nametable Mirroring Type Select ($8000-$FFFF)

Mask: $8000

D~7654 3210
  ---------
  .... ...M
          +- Select nametable mirroring type
              0: Vertical
              1: Horizontal

See also

Retrieved from "https://www.nesdev.org/w/index.php?title=NES_2.0_Mapper_312&oldid=7801"