Standard MMC3 board.
Max. 64K PRG ROM.
Max. 64K CHR ROM.
This board accepts standard pinout EPROMs up to 64K in size for both CHR and PRG.
One odd thing is that it allows fixing the mapper to H or V modes instead of using the
MMC3 for this (why would you want to do this?!) This sample is from a Lolo 2 prototype.