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
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.
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
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
Misc. Control Register (addr = 05h)
Set DAC_SP M/S = 1
Set DAC Serial Port to Master Mode.
Set ADC Serial Port to Master Mode.
Set ADC_SP M/S = 1
Identify external ADC clock source as DAC Serial Port.
Set EXT ADC SCLK = 1
DAC Mode
Not One-Line Mode
One-Line Mode #1
DAC_SCLK=128Fs
One-Line Mode #2
DAC_SCLK=64Fs
Not One- DAC_LRCK=SSM/DSM/QSM DAC_LRCK=SSM
Line Mode ADC_SCLK=64Fs ADC_SCLK=64Fs
ADC_LRCK=SSM/DSM/QSM ADC_LRCK=SSM/DSM/QSM
not valid
not valid
not valid
DAC_SCLK=64Fs
One-Line DAC_LRCK=SSM/DSM
Mode #1 ADC_SCLK=128Fs
ADC_LRCK=DAC_LRCK
DAC_SCLK=128Fs
DAC_LRCK=SSM
ADC_SCLK=128Fs
ADC_LRCK=DAC_LRCK
ADC Mode
DAC_SCLK=64Fs
One-Line DAC_LRCK=SSM
Mode #2 ADC_SCLK=256Fs
ADC_LRCK=DAC_LRCK
not valid
MCLK
64Fs,128Fs,
256Fs
SCLK_PORT1
LRCK
SCLK
ADC_SCLK
ADC_LRCK
ADC_SDOUT
LRCK_PORT1
SDIN_PORT1
ADC Data
MCLK
SDOUT1
SDOUT2
RMCK
ADCIN1
ADCIN2
CS5361
64Fs,128Fs
CS5361
SCLK_PORT2
LRCK_PORT2
DAC_SCLK
DAC_LRCK
DAC_SDIN1
DAC_SDIN2
SDOUT1_PORT2
SDOUT2_PORT2
SDOUT3_PORT2
DAC_SDIN3
DIGITAL AUDIO
PROCESSOR
CS42416
Figure 18. OLM Configuration #2
32
DS602F1
CIRRUS [ CIRRUS LOGIC ]
