CS42L51 Datasheet, PDF (49/83 Pages) Cirrus Logic – Low Power, Stereo CODEC with Headphone Amp

CS42L51
Tri-State Serial Port Interface (3ST_SP)
Default: 0
0 - Disable
1 - Enable
Function:
When enabled, and the device is configured as a master, then all Serial Port interface signals will be placed
in a high-impedance output state. If the serial port interface is configured as a slave, only the SDOUT pin
will be placed in a high-impedance state. The other signals will remain as inputs.
Power Down MIC X (PDN_MICX)
Default: 1
0 - Disable
1 - Enable
Function:
When enabled, the microphone pre-amplifier for channel x will be in a power down state.
Power Down MIC BIAS (PDN_MICBIAS)
Default: 1
0 - Disable
1 - Enable
Function:
When enabled, the microphone bias circuit will be in a power down state.
MCLK Divide By 2 (MCLKDIV2)
Default: 0
0 - Disabled
1 - Divide by 2
Function:
Divides the input MCLK by 2 prior to all internal circuitry. This bit is ignored when the AUTO bit is disabled
in slave mode.
6.4 Interface Control (Address 04h)
7
6
SDOUT->SDIN
M/S
5
DAC_DIF2
4
DAC_DIF1
3
DAC_DIF0
SDOUT to SDIN Loopback (SDOUT->SDIN)
Default: 0
0 - Disabled; SDOUT internally disconnected from SDIN
1 - Enabled; SDOUT internally connected to SDIN
Function:
Internally loops the signal on the SDOUT pin to SDIN.
Master/Slave Mode (M/S)
Default: 0
0 - Slave
1 - Master
Function:
Selects either master or slave operation for the serial port.
2
ADC_I²S/LJ
1
DIGMIX
0
MICMIX
DS679A2
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