Microchip Technology megaAVR 0 Series Manual page 174

17.5.2 Control B
Name: CTRLB
Offset: 0x01
Reset: 0x00
Property: -
Bit 7
Access
Reset
Bit 1 – ADC0REFEN ADC0 Reference Force Enable
Writing a '1' to this bit forces the voltage reference for ADC0 to be enabled, even if it is not requested.
Writing a '0' to this bit allows to automatic enable/disable of the reference source when not requested.
Bit 0 – AC0REFEN AC0 DACREF Reference Force Enable
Writing a '1' to this bit forces the voltage reference for AC0 DACREF to be enabled, even if it is not
requested.
Writing a '0' to this bit allows to automatic enable/disable of the reference source when not requested.
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2018 Microchip Technology Inc.
6 5 4 3
Datasheet Preliminary
®
megaAVR 0-Series
Voltage Reference (VREF)
2 1
ADC0REFEN AC0REFEN
R/W
0
DS40002015A-page 174
0
R/W
0