3.4.3.8.1.1 RDCR – RX DSP Control Register

Note:
  1. Writable only if RDCR.RDEN = 0.
Name: RDCR
Offset: 0x033
Reset: 0x00

Controls the operation of the RX DSP block

Bit 76543210 
  RDENADIVENRDPU 
Access RRRRR/WR/WR/W 
Reset 0000000 

Bit 7 –  Reserved Bit

This bit is reserved and returns ‘0’ when read.

Bit 6 –  Reserved Bit

This bit is reserved and returns ‘0’ when read.

Bit 5 –  Reserved Bit

This bit is reserved and returns ‘0’ when read.

Bit 3 –  Reserved Bit

This bit is reserved and returns ‘0’ when read.

Bit 2 – RDEN RX DSP Enable

Table 3-32. RDEN Bit Details
ValueDescription
0

RxDSP is disabled, all RX DSP registers are in the asynchronous reset state. The power reduction bits for the RxDSP are set to ‘1’ (RDPR.PRFLT, RDPR.PRPTA/B, PRR2.PRXA/B).

1RxDSP is enabled with some delay to assure synchronous operation. Some clock dividers are running to allow the setting of configuration data. The channel filter and the demodulator have to be enabled separately by clearing the corresponding power reduction registers (RDPR.PRFLT, RDPR.PRPTA/B, PRR2.PRXA/B).

Bit 1 – ADIVEN Divided ADC Clock Enable

Enables CLKADIV generator.
CAUTION: This bit can only be modified while RDCR.RDEN = 0. A clock is generated if the ADC is running, and the RX DSP is enabled (RDCR.RDEN = 1) because this is the clock source for the generator.
Table 3-33. ADIVEN Bit Details
ValueDescription
0Divided ADC clock output is disabled.
1Divided ADC clock output is enabled.

Bit 0 – RDPU RX DSP Power Up

Enables the power supply for the decimation filter at the beginning of the RX DSP path.