Cirrus Logic CS4224 - Manual (Page 15)

CS4223 CS4224
DS290F1 15
5. REGISTER DESCRIPTIONS - CS4224
Note: All registers are read/write in I
2
C mode and write-only in SPI mode, unless otherwise noted.
5.1 ADC Control (address 01h)
5.1.1 POWER DOWN ADC (PDN)
Default = 0
0 - Disabled
1 - Enabled
Function:
The ADC will enter a low-power state when this function is enabled.
5.1.2 LEFT AND RIGHT CHANNEL HIGH PASS FILTER DEFEAT (HPDR-HPDL)
Default = 0
0 - Disabled
1 - Enabled
Function:
The internal high-pass filter is defeated when this function is enabled. Control of the internal high-
pass filter is independent for the left and right channel.
5.1.3 LEFT AND RIGHT CHANNEL ADC MUTING (ADMR-ADML)
Default = 0
0 - Disabled
1 - Enabled
Function:
The output for the selected ADC channel will be muted when this function is enabled.
5.1.4 CALIBRATION CONTROL (CAL)
Default = 0
0 - Disabled
1 - Enabled
Function:
The device will automatically perform an offset calibration when brought out of reset, which last ap-
proximately 50 ms. When this function is enabled, a rising edge on the reset line will initiate an offset
calibration.
5.1.5 CALIBRATION STATUS (CALP) (READ ONLY)
Default = 0
0 - Calibration done
1 - Calibration in progress
7 6 5 4 3 2 1 0
PDN HPDR HPDL ADMR ADML CAL CALP CLKE
0 0 0 0 0 0 0 0