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Internal data routing, Figure 4. internal data routing – Cirrus Logic CDB42438 User Manual

Page 11

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CDB42438

DS646DB2

11

3.3.

Internal Data Routing

The graphical description below shows the internal data routing topology between the CS42438,
CS8416, CS8406 and DSP Header. Refer to registers “CODEC SDIN Control (address 02h)” on
page 16, “CS8406 Control (addre
ss 04h)” on page 17 and “DSP Header Control (address 07h)”
on page 20 for configuration settings.

DSP Header

DSP_DOUT

CS8406

SDIN

CS42438

SDIN

AUX

ADC3

ADC2

ADC1

MUX[2:0]

SDOUT

SDOUT

DSP OUT

TDM Stream

DSP_DIN

TDMer

SDIN_MUX[1:0]

AUX_SDIN

TDM Stream

DATA_MUX[2:0]

ADC1,2,3, AUX

DSPDATA->DAC

CS8416

SDOUT

Figure 4. Internal Data Routing