HOST COMMUNICATION CIRCUIT, CLIENT COMMUNICATION CIRCUIT, COMMUNICATION SYSTEM, SOUND REPRODUCING DEVICE AND COMMUNICATION METHOD

摘要

A host side is adapted to be connected to a client side by means of a clock wire (CLKW), a selection wire (SELW), a first data wire (DW1) and a second data wire (DW2). The host side is configured to transmit a digital selection signal over the selection wire (SELW) to the client side, the selection signal determining either an audio transmission mode or a client communication mode. Further, the host side is configured to transmit digital audio data of a first channel and a second channel over the first and the second data wire (DW1, DW2) to the client side in the audio transmission mode, and to perform client communication over the first and the second data wire (DW1, DW2) in the client communication mode.