CS42516 datasheet(48/90 Pages) CIRRUS

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DS583F1

CS42516

6.4

Functional Mode (address 03h)

6.4.1

CODEC FUNCTIONAL MODE (CODEC_FMX)

Default = 00

00 - Single-Speed Mode (4 to 50 kHz sample rates)

01 - Double-Speed Mode (50 to 100 kHz sample rates)

10 - Quad-Speed Mode (100 to 192 kHz sample rates)

11 - Reserved

Function:

Selects the required range of sample rates for all converters clocked from the Codec serial port

(CODEC_SP). Bits must be set to the corresponding sample rate range when the CODEC_SP is in Master

or Slave Mode.

6.4.2

SERIAL AUDIO INTERFACE FUNCTIONAL MODE (SAI_FMX)

Default = 00

00 - Single-Speed Mode (4 to 50 kHz sample rates)

01 - Double-Speed Mode (50 to 100 kHz sample rates)

10 - Quad-Speed Mode (100 to 192 kHz sample rates)

11 - Reserved

Function:

Selects the required range of sample rates for the Serial Audio Interface port (SAI_SP). These bits

must be set to the corresponding sample rate range when the SAI_SP is in Master or Slave Mode.

6.4.3

ADC SERIAL PORT SELECT (ADC_SP SELX)

Default = 00

00 - Serial data on CX_SDOUT pin, clocked from the CODEC_SP. S/PDIF data on SAI_SDOUT pin.

01 - Serial data on CX_SDOUT pin, clocked from the SAI_SP. S/PDIF data on SAI_SDOUT pin.

10 - Serial data on SAI_SDOUT pin, clocked from the SAI_SP. No S/PDIF data available.

11 - Reserved

Function:

Selects the desired clocks and routing for the ADC serial output.

6.4.4

DAC DE-EMPHASIS CONTROL (DAC_DEM)

Default = 0

Function:

Enables the digital filter to maintain the standard 15

µs/50µs digital de-emphasis filter response at the

auto-detected sample rate of either 32, 44.1, or 48 kHz. De-emphasis will not be enabled, regardless

of this register setting, at any other sample rate. If the FRC_PLL_LK bit is set to a ‘1’b, the auto-detect

sample rate feature is disabled. To apply the correct de-emphasis filter, use the DE-EMPH bits in the

543

CODEC_FM1 CODEC_FM0

SAI_FM1

SAI_FM0

ADC_SP SEL1 ADC_SP SEL0

DAC_DEM

RCVR_DEM

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