CS42416_05 Datasheet, PDF (32/73 Pages) Cirrus Logic – 110 dB, 192 kHz 6-Ch Codec with PLL

CS42416
4.5.4.2 OLM Config #2
This configuration will support up to 6 channels of DAC data or 6 channels of ADC data and will handle up
to 20-bit samples at a sampling-frequency of 96 kHz on all channels for both the DAC and ADC. The output
data stream of the internal and external ADCs is configured to use the ADC_SDOUT output and run at the
DAC Serial Port sample frequency.
Register / Bit Settings
Functional Mode Register (addr = 03h)
Set DAC_FMx = 00,01,10
Set ADC_FMx = 00,01,10
Set ADC_CLK_SEL = 1
Interface Format Register (addr = 04h)
Set DIFx bits to proper serial format
Set ADC_OLx bits = 00,01,10
Set DAC_OLx bits = 00,01
Misc. Control Register (addr = 05h)
Set DAC_SP M/S = 1
Set ADC_SP M/S = 1
Set EXT ADC SCLK = 1
Description
DAC_LRCK can run at SSM, DSM or QSM independent of ADC_LRCK
ADC_LRCK can run at SSM, DSM or QSM independent of DAC_LRCK
Configure ADC_SDOUT to be clocked from the ADC_SP clocks.
Select the digital interface format when not in One-Line Mode
Select ADC operating mode, see table below for valid combinations
Select DAC operating mode, see table below for valid combinations
Set DAC Serial Port to Master Mode.
Set ADC Serial Port to Master Mode.
Identify external ADC clock source as DAC Serial Port.
ADC Mode
DAC Mode
Not One-Line Mode
One-Line Mode #1
DAC_SCLK=64Fs
Not One- DAC_LRCK=SSM/DSM/QSM
Line Mode ADC_SCLK=64Fs
ADC_LRCK=SSM/DSM/QSM
DAC_SCLK=128Fs
DAC_LRCK=SSM
ADC_SCLK=64Fs
ADC_LRCK=SSM/DSM/QSM
One-Line
Mode #1
DAC_SCLK=64Fs
DAC_LRCK=SSM/DSM
ADC_SCLK=128Fs
ADC_LRCK=DAC_LRCK
DAC_SCLK=128Fs
DAC_LRCK=SSM
ADC_SCLK=128Fs
ADC_LRCK=DAC_LRCK
One-Line
Mode #2
DAC_SCLK=64Fs
DAC_LRCK=SSM
ADC_SCLK=256Fs
ADC_LRCK=DAC_LRCK
not valid
One-Line Mode #2
not valid
not valid
not valid
LRCK
SCLK
MCLK
SDOUT1
SDOUT2
CS5361
CS5361
RMCK
ADCIN1
ADCIN2
ADC_SCLK
ADC_LRCK
ADC_SDOUT
64Fs,128Fs,
256Fs
ADC Data
MCLK
SCLK_PORT1
LRCK_PORT1
SDIN_PORT1
DAC_SCLK
DAC_LRCK
DAC_SDIN1
DAC_SDIN2
DAC_SDIN3
64Fs,128Fs
SCLK_PORT2
LRCK_PORT2
SDOUT1_PORT2
SDOUT2_PORT2
SDOUT3_PORT2
CS42416
DIGITAL AUDIO
PROCESSOR
Figure 18. OLM Configuration #2
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DS602F1