10 general purpose register (index 20h), Cs4202 – Cirrus Logic CS4202 User Manual
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CS4202
28
DS549PP2
4.10
General Purpose Register (Index 20h)
MIX
Mono Output Path. This bit controls the source of the mono output driver. When ‘clear’, the
output of the stereo-to-mono mixer is sent to the mono output. When ‘set’, the output of the
microphone boost stage is sent to the mono output. The source of the stereo-to-mono mixer
is controlled by the TMM bit in the AC Mode Control Register (Index 5Eh). The source of the
microphone boost stage is controlled by the MS bit in the General Purpose Register
(Index 20h).
MS
Microphone Select. The MS bit determines which of the two Mic inputs are passed to the mix-
er. When ‘set’, the MIC2 input is selected. When ‘clear’, the MIC1 input is selected.
LPBK
Loopback Enable. When ‘set’, the LPBK bit enables the ADC/DAC Loopback Mode. This bit
routes the output of the ADCs to the input of the DACs without involving the AC-link.
Default
0000h
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
0
0
0
MIX
MS
LPBK
0
0
0
0
0
0
0