SMROM

From NESdev Wiki
Revision as of 13:00, 2 November 2010 by Bregalad (talk | contribs) (Created page with ''''SMROM''' (NES-SL1ROM and HVC-SL1ROM) is one of the less common boards within the SxROM set. Like other SxROM boards, SL1ROM uses the Nintendo MMC1 ASIC. It should…')
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigationJump to search

SMROM (NES-SL1ROM and HVC-SL1ROM) is one of the less common boards within the SxROM set. Like other SxROM boards, SL1ROM uses the Nintendo MMC1 ASIC. It should be noted that only Japanese HVC-SMROM boards have ever been produced, so this board has no 72-pin "NES-SMROM" counterpart.

Overview

  • PRG ROM size: 2x128 KB (DIP-32 custom pinout ?)
  • PRG ROM bank size: 16 KB or 32 KB
  • PRG RAM: None
  • CHR capacity: 8 KB RAM
  • CHR bank size: 8 KB or 4 KB
  • Nametable mirroring: Controlled by mapper
  • Subject to bus conflicts: No

Hardware

This particular board uses two 128 KB PRG ROM chips instead of just one 256 KB chip. Aside of this, this board is functionally identical to SGROM.

See also