AVR32DA28/32/48

19.4.1 Initialization

The default configuration enables the respective source when the ADC0, DAC0, or any of the ACs request a reference voltage. The default reference voltage is 1.024V but can be configured by writing to the respective Reference Select (REFSEL) bit field in the ADC0 Reference (ADC0REF), DAC0 Reference (DAC0REF) or Analog Comparators (ACREF) registers.

Note: Altering the voltage reference for one peripheral may cause undesirable noise in other peripherals dependent on the reference. Disable those peripherals during the reference change to prevent this.

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