A quantized coefficient coding apparatus used in a media coding system includes a determination module, a coding mode arbitration module and a coding module. Thus, refrigerant amounts flowing to the first and second evaporators can be suitably controlled. A portion of the first conductive layer overlapping the contact hole is removed, and the second conductive layer and the semiconductor layer are electrically connected to each other through the contact hole. The programmable network component is configured to support a plurality of protocols for communication with a plurality of physical interface components and comprises a plurality of programmable registers for determining the status of the plurality of physical interfaces. Systems and software to implement related methods are also described and claimed.