CS42526 datasheet(52/93 Pages) CIRRUS

52 / 93 page

DS585F1

CS42526

6.6.4

INTERPOLATION FILTER SELECT (FILT_SEL)

Default = 0

Function:

This feature allows the user to select whether the DAC interpolation filter has a fast- or slow roll-off.

For filter characteristics, please See “D/A Digital Filter Characteristics” on page 11.

0 - Fast roll-off.

1 - Slow roll-off.

6.6.5

HIGH-PASS FILTER FREEZE (HPF_FREEZE)

Default = 0

Function:

When this bit is set, the internal high-pass filter for the selected channel will be disabled. The current

DC offset value will be frozen and continue to be subtracted from the conversion result. See “A/D Dig-

ital Filter Characteristics” on page 9.

6.6.6

CODEC SERIAL PORT MASTER/SLAVE SELECT (CODEC_SP M/S)

Default = 0

Function:

In Master Mode, CX_SCLK and CX_LRCK are outputs. Internal dividers will divide the master clock

to generate the serial clock and left/right clock. In Slave Mode, CX_SCLK and CX_LRCK become in-

puts.

If the CX_SP is in Slave Mode, CX_LRCK must be present for proper device operation.

6.6.7

SERIAL AUDIO INTERFACE SERIAL PORT MASTER/SLAVE SELECT (SAI_SP M/S)

Default = 0

Function:

In Master Mode, SAI_SCLK and SAI_LRCK are outputs. Internal dividers will divide the master clock

to generate the serial clock and left/right clock. In Slave Mode, SAI_SCLK and SAI_LRCK become

inputs.

If the SAI_SP is in Slave Mode, SAI_LRCK must be present for proper device operation.

CS42526 Datasheet(PDF) 52 Page - Cirrus Logic