The codec has two interface ports: a parallel port for data transfer, and a serial port for control. The parallel port is 16 bits wide, and is reserved for moving data between the codec and a DSP, such as the TMS320C6XX. Configuration is done via the serial port. A special interface scheme enables multichannel system design. The TLV320AD12A can be powered down via a dedicated terminal or through software control to reduce heat dissipation. Additionally, there is a general-purpose (GP) port consisting of eight output terminals for control of external circuitry.