Schematic

This is an alternate version of the Pokey cart that has a bankswitchd ROM. As in a normal Pokey cart the Pokey is mapped to address range $4000-$7FFF. The cart supports up to 8 or 32, 16K banks of ROM depending on the size of the ROM at U1. The banks are mapped to address range $8000-$BFFF. The address range $C000-$FFFF is fixed and will be mapped to either bank 7 or bank 32 depending on the size ROM that is used. The U1 can accomodate either a 28 pin or 32 pin ROM. The jumpers are set as follows: