DRM161, Automotive HVAC Control System with LCD Interface for S12ZVH Family Devices

DRM161, Automotive HVAC Control System with LCD Interface for S12ZVH Family Devices. It describes the reference design of an automotive Heating, Ventilation and Air Conditioning (HVAC) control system with LCD interface board based on MC9S12ZVH128. The purpose of the design is to replace the existing mechanical switches, which are prone to wear and tear, with interactive LCD based system for longevity and robustness of the system. Freescale has a full portfolio of HVAC design for the entire four-wheeler segments