In general, the CPU12 is a proper superset of the M68HC11 CPU. Significant changes have been made to improve the efficiency and capabilities of the CPU without sacrificing compatibility
Transporting M68HC11 Code to M68HC12 Devices
In general, the CPU12 is a proper superset of the M68HC11 CPU. Significant changes have been made to improve the efficiency and capabilities of the CPU without sacrificing compatibility