Samsung S5PC110 Manual page 1880

S5PC110_UM 4 AC97 CONTROLLER
Slot 2: Status Data Port
In slot 2, this is the status data with 16-bit resolution ([19:4] is valid data)
Slot 3: PCM Record Left channel
Slot 3 which is audio input frame is the left channel audio output of the AC97 Codec. If a sample has a resolution
that is less than 16 bits, the AC97 Codec fills all training non-valid bit positions in the slot with zeroes.
Slot 4: PCM Record Right channel
Slot 4 which is audio input frame is the right channel audio output of the AC97 Codec. If a sample has a resolution
that is less than 16 bits, the AC97 Codec fills all training non-valid bit positions in the slot with zeroes.
Slot 6: Microphone Record Data
The AC97 Controller supports 16-bit resolution for the MIC-in channel.
Figure 4-6 AC-link Input Frame
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