CS42416 datasheet(22/67 Pages) CIRRUS

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CS42416

3.5.4

One Line Mode(OLM) Configurations

3.5.4.1

OLM Config #1

One Line Mode Configuration #1 can support up to 6 channels of DAC data, and 6 channels of ADC data.

This is the only configuration which will support up to 24-bit samples at a sampling frequency of 48 kHz

on all channels for both the DAC and ADC.

Description

Functional Mode Register (addr = 03h)

Set DAC_FMx = ADC_FMx = 00,01,10

DAC_LRCK must equal ADC_LRCK; sample rate conversion not supported

Set ADC_CLK_SEL = 0

Configure ADC_SDOUT to be clocked from the DAC_SP clocks.

Interface Format Register (addr = 04h)

Set DIFx bits to proper serial format

Select the digital interface format when not in one line mode

Set ADC_OLx bits = 00,01,10

Select ADC operating mode, see table below for valid combinations

Set DAC_OLx bits = 00,01,10

Select DAC operating mode, see table below for valid combinations

Misc. Control Register (addr = 05h)

Set DAC_SP M/S = 1

Configure DAC Serial Port to master mode.

Set ADC_SP M/S = 1

Configure ADC Serial Port to master mode.

Set EXT ADC SCLK = 0

Identify external ADC clock source as ADC Serial Port.

DAC Mode

Not One Line Mode

One Line Mode #1

One Line Mode #2

ADC Mode

Not One

Line Mode

DAC_SCLK=64Fs

DAC_LRCK=SSM/DSM/QSM

DAC_SCLK=128Fs

DAC_LRCK=SSM/DSM

ADC_SCLK=64Fs

ADC_LRCK=DAC_LRCK

not valid

One Line

Mode #1

DAC_SCLK=128Fs

DAC_LRCK=SSM/DSM

ADC_SCLK=64Fs

ADC_LRCK=DAC_LRCK

DAC_SCLK=128Fs

DAC_LRCK=SSM/DSM

ADC_SCLK=64Fs

ADC_LRCK=DAC_LRCK

not valid

One Line

Mode #2

DAC_SCLK=256Fs

DAC_LRCK=SSM

ADC_SCLK=64Fs

ADC_LRCK=DAC_LRCK

not valid

DAC_SCLK=256Fs

DAC_LRCK=SSM

ADC_SCLK=64Fs

ADC_LRCK=DAC_LRCK

SC LK _PO R T1

LRC K_PO R T1

SD IN_PO R T1

SC LK _PO R T2

LRC K_PO R T2

SD OUT1_PORT2

SD OUT2_PORT2

SD OUT3_PORT2

AD C_SC LK

ADC _LR CK

DAC_S CLK

DAC_LR CK

AD C_SD O UT

DAC_SD IN1

DAC_SD IN2

DAC_SD IN3

RMCK

AD CIN 1

AD CIN 2

MCLK

SDO U T1

SDO U T2

LRC K

SC LK

64Fs

ADC Data

64Fs,128Fs, 256Fs

DIG ITAL AU DIO

PROC ESSOR

CS5361

MC LK

Figure 13. OLM Configuration #1

CS42416

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