2.5
Audio
Interface
The EC1400 audio interface is implemented by a WM8731 audio codec. The data and
control interface between CPU and WM8731 is I
2
S.
On EC1407/EC1408/EC1410, the available audio connectors are head phone, line in
and MIC. The speaker connectors (left, right) are not available for external connection.
On EC1403/EC1404, the available audio connectors are MIC, speaker Left and speaker
Right.
Audio Interfaces:
ARM11
CPU
WM8731
Audio
Codec
Amplifier
Head Phone (out)
I
2
S
Line In (in)
MIC (in)
Speaker
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