WM8994ECSSLASHR datasheet(69/363 Pages) CIRRUS

69 / 363 page

WM8994

Rev 4.6

DAC OUTPUT DIGITAL MIXING

There are four DAC digital mixers, one for each DAC. The inputs to each DAC mixer comprise signals

from AIF1, AIF2 and the digital sidetone signals.

Note that the Left/Right channels of the AIF1 and AIF2 inputs can be inverted or interchanged if

required; see “Digital Audio Interface Control”.

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

R1537 (0601h)

DAC1 Left

Mixer Routing

ADCR_TO_DAC

Enable Sidetone STR to DAC1L

0 = Disabled

1 = Enabled

ADCL_TO_DAC

Enable Sidetone STL to DAC1L

0 = Disabled

1 = Enabled

AIF2DACL_TO_

DAC1L

Enable AIF2 (Left) to DAC1L

0 = Disabled

1 = Enabled

AIF1DAC2L_TO

_DAC1L

Enable AIF1 (Timeslot 1, Left) to

DAC1L

0 = Disabled

1 = Enabled

AIF1DAC1L_TO

_DAC1L

Enable AIF1 (Timeslot 0, Left) to

DAC1L

0 = Disabled

1 = Enabled

R1538 (0602h)

DAC1 Right

Mixer Routing

ADCR_TO_DAC

Enable Sidetone STR to DAC1R

0 = Disabled

1 = Enabled

ADCL_TO_DAC

Enable Sidetone STL to DAC1R

0 = Disabled

1 = Enabled

AIF2DACR_TO_

DAC1R

Enable AIF2 (Right) to DAC1R

0 = Disabled

1 = Enabled

AIF1DAC2R_TO

_DAC1R

Enable AIF1 (Timeslot 1, Right) to

DAC1R

0 = Disabled

1 = Enabled

AIF1DAC1R_TO

_DAC1R

Enable AIF1 (Timeslot 0, Right) to

DAC1R

0 = Disabled

1 = Enabled

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