2.5 Audio InterfaceThe EC1400 audio interface is implemented by a WM8731 audio codec. The data andcontrol interface between CPU and WM8731 is I2 S.On EC1407/EC1408/EC1410, the available audio connectors are head phone, line inand MIC. The speaker connectors (left, right) are not available for external connection.On EC1403/EC1404, the available audio connectors are MIC, speaker Left and speakerRight.Audio Interfaces:ARM11CPUWM8731AudioCodecAmplifierHead Phone (out)I 2 SLine In (in)MIC (in)Speaker
