Schematic

This version of the Supercart supports up to 8, 16K banks of ROM, with 4 banks in each ROM. The bank are mapped into the address range $8000-$BFFF and the banks are switched by writing the bank number to the same address range. The address range of $C000-$FFFF is fixed at bank 7, and the range of $4000-$7FFF is fixed at bank 6.