Atmel Xplained Pro Evaluation Kit ATSAMD20-XPRO ATSAMD20-XPRO Hoja De Datos
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ATSAMD20-XPRO
228
Atmel | SMART SAM D20 [DATASHEET]
Atmel-42129K–SAM-D20_datasheet–06/2014
18.8.9 Frequency Correction
Name:
FREQCORR
Offset:
0x0C
Reset:
0x00
Property:
Write-Protected, Write-Synchronized
z
Bit 7 – SIGN: Correction Sign
0: The correction value is positive, i.e., frequency will be increased.
1: The correction value is negative, i.e., frequency will be decreased.
0: The correction value is positive, i.e., frequency will be increased.
1: The correction value is negative, i.e., frequency will be decreased.
z
Bits 6:0 – VALUE[6:0]: Correction Value
These bits define the amount of correction applied to the RTC prescaler.
0: Correction is disabled and the RTC frequency is unchanged.
1–127: The RTC frequency is adjusted according to the value.
These bits define the amount of correction applied to the RTC prescaler.
0: Correction is disabled and the RTC frequency is unchanged.
1–127: The RTC frequency is adjusted according to the value.
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