Datasheet

21.12.10 Clock Value in Clock/Calendar mode (CTRLA.MODE=2)
Name: CLOCK
Offset: 0x18
Reset: 0x00000000
Property: PAC Write-Protection, Write-Synchronized, Read-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 CTRLA.CLKREP=0, the Hour bit group is in 24-hour format, with values 0-23. When
CTRLA.CLKREP=1, HOUR[3:0] has values 1-12, and HOUR[4] represents AM (0) or PM (1).
Bits 11:6 – MINUTE[5:0] Minute
0 – 59
Bits 5:0 – SECOND[5:0] Second
0 – 59
SAM D5x/E5x Family Data Sheet
RTC – Real-Time Counter
© 2019 Microchip Technology Inc.
Datasheet
DS60001507E-page 365