Cirrus Logic CS42526 - Manual (Page 47)

DS585F2 47
CS42526
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 (CO-
DEC_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 s/50s 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
7 6 5 4 3 2 1 0
CODEC_FM1 CODEC_FM0 SAI_FM1 SAI_FM0 ADC_SP SEL1 ADC_SP SEL0 DAC_DEM RCVR_DEM