Datasheet

19.8.22 Clock Value - MODE2
Name: CLOCK
Offset: 0x10
Reset: 0x00000000
Property: Read-Synchronized, Write-Protected, Write-Synchronized
Bit 31 30 29 28 27 26 25 24
YEAR[5:0] MONTH[3:2]
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 23 22 21 20 19 18 17 16
MONTH[1:0] DAY[4:0] HOUR[4:4]
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 15 14 13 12 11 10 9 8
HOUR[3:0] MINUTE[5:2]
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 6 5 4 3 2 1 0
MINUTE[1:0] SECOND[5:0]
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
Bits 31:26 – YEAR[5:0] Year
The year offset with respect to the reference year (defined in software).
The year is considered a leap year if YEAR[1:0] is zero.
Bits 25:22 – MONTH[3:0] Month
1 – January
2 – February
...
12 – December
Bits 21:17 – DAY[4:0] Day
Day starts at 1 and ends at 28, 29, 30 or 31, depending on the month and year.
Bits 16:12 – HOUR[4:0] Hour
When CTRL.CLKREP is zero, the Hour bit group is in 24-hour format, with values 0-23. When
CTRL.CLKREP is one, HOUR[3:0] has values 1-12 and HOUR[4] represents AM (0) or PM (1).
SAM D21 Family
RTC – Real-Time Counter
© 2018 Microchip Technology Inc.
Datasheet Complete
DS40001882D-page 293