Datasheet

19.8.19 Frequency Correction
Name: FREQCORR
Offset: 0x0C
Reset: 0x00
Property: Write-Protected, Write-Synchronized
Bit 7 6 5 4 3 2 1 0
SIGN VALUE[6:0]
Access
R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0 0
Bit 7 – SIGN Correction Sign
Value Description
0
The correction value is positive, i.e., frequency will be decreased.
1
The correction value is negative, i.e., frequency will be increased.
Bits 6:0 – VALUE[6:0] Correction Value
These bits define the amount of correction applied to the RTC prescaler.
1–127: The RTC frequency is adjusted according to the value.
Value Description
0
Correction is disabled and the RTC frequency is unchanged.
SAM D21 Family
RTC – Real-Time Counter
© 2018 Microchip Technology Inc.
Datasheet Complete
DS40001882D-page 290