18.5.2 Control B

Name: CTRLB
Offset: 0x01
Reset: 0x00
Property: -

Bit 76543210 
   DAC2REFENADC1REFENDAC1REFEN ADC0REFENDAC0REFEN 
Access R/WR/WR/WR/WR/W 
Reset 00000 

Bit 5 – DAC2REFEN DAC2 and AC2 Reference Force Enable

Writing a '1' to this bit forces the voltage reference for the DAC2 and AC2 to be running, even if it is not requested.

Writing a '0' to this bit allows to automatic enable/disable the reference source when not requested.

Bit 4 – ADC1REFEN ADC1 Reference Force Enable

Writing a '1' to this bit forces the voltage reference for the ADC1 to be running, even if it is not requested.

Writing a '0' to this bit allows to automatic enable/disable the reference source when not requested.

Note: Do not force the internal reference enabled (ADCnREFEN=1 in VREF.CTRLB) when the ADC is using the external reference (the REFSEL bit field in ADC.CTRLC).

Bit 3 – DAC1REFEN DAC1 and AC1 Reference Force Enable

Writing a '1' to this bit forces the voltage reference for the DAC1 and AC1 to be running, even if it is not requested.

Writing a '0' to this bit allows to automatic enable/disable the reference source when not requested.

Bit 1 – ADC0REFEN ADC0 Reference Force Enable

Writing a '1' to this bit forces the voltage reference for the ADC0 to be running, even if it is not requested.

Writing a '0' to this bit allows automatic enable/disable of the reference source by the peripheral.
Note: Do not force the internal reference enabled (ADCnREFEN=1 in VREF.CTRLB) when the ADC is using the external reference (the REFSEL bit field in ADC.CTRLC).

Bit 0 – DAC0REFEN DAC0 and AC0 Reference Force Enable

Writing a '1' to this bit forces the voltage reference for the DAC0 and AC0 to be running, even if it is not requested.

Writing a '0' to this bit allows automatic enable/disable of the reference source by the peripheral.