This adapter allows a 6502 CPU to be used instead of a 6507 CPU. In addition, the address lines are set to tristate mode in the reset state.
The adapter can also be installed in the original old VCS 2600 consoles from 1977.
The following 6502 types are supported: MOS6502, UM6502, R6502A, R6502AP (not W65C02, R65C02)