摘要 |
An audio playback apparatus is based on a pre-defined data communication protocol, and communicating with an external host. The audio playback apparatus includes an audio playback engine, having a plurality of I/O pins based on the pre-defined data communication protocol for communicating with the external host. The pre-defined data communication protocol allows to transmit a communication information between the audio playback engine and the external host. In addition, an audio control command and an audio data stream defined in a pre-defined protocol are treated as the communication information between the audio playback engine and the external host.
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