SL1ROM

SL1ROM (NES-SL1ROM and HVC-SL1ROM) is a board within the SxROM set. Like other SxROM boards, SL1ROM uses the Nintendo MMC1 ASIC.

Overview

• PRG ROM size: 64, 128 or 256 KB (DIP-28/32 Nintendo pinout)
• PRG ROM bank size: 16 KB or 32 KB
• PRG RAM: None
• CHR capacity: 128 KB ROM (DIP-28 Nintendo pinout)
• CHR bank size: 8 KB or 4 KB
• Nametable mirroring: Controlled by mapper
• Subject to bus conflicts: No

Hardware

This particular board uses a 7432 chip (quad OR gate) to handle enable signals for a 28-pin 128 KB CHR ROM chip. Aside of this, this board is functionally identical to SLROM.

See also

• Nintendo MMC1