Manualsbrain.com
  1. Manuals
  2. Brands
  3. Atmel
  4. Xplained Pro Evaluation Kit for the ATSAMD21J18A Microcontroller ATSAMD21-XPRO
  5. Data Sheet

Atmel Xplained Pro Evaluation Kit for the ATSAMD21J18A Microcontroller ATSAMD21-XPRO ATSAMD21-XPRO Data Sheet

Product codes
ATSAMD21-XPRO
Download
Page of 1018
259
Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181C–SAM-D21_Datasheet–07/2014
18.8.26 Alarm 0 Value - MODE2
Name:
ALARM0 
Offset:
0x18
Reset:
0x00000000
Property:
Write-Protected, Write-Synchronized
The 32-bit value of ALARM0 is continuously compared with the 32-bit CLOCK value, based on the masking set by 
MASKn.SEL. When a match occurs, the Alarm 0 interrupt flag in the Interrupt Flag Status and Clear register 
(INTFLAG.ALARMn) is set on the next counter cycle, and the counter is cleared if CTRL.MATCHCLR is one.
z
Bits 31:26 – YEAR[5:0]: Year
The alarm year. Years are only matched if MASKn.SEL is 6.
z
Bits 25:22 – MONTH[3:0]: Month
The alarm month. Months are matched only if MASKn.SEL is greater than 4.
z
Bits 21:17 – DAY[4:0]: Day
The alarm day. Days are matched only if MASKn.SEL is greater than 3.
z
Bits 16:12 – HOUR[4:0]: Hour
The alarm hour. Hours are matched only if MASKn.SEL is greater than 2.
z
Bits 11:6 – MINUTE[5:0]: Minute
The alarm minute. Minutes are matched only if MASKn.SEL is greater than 1.
z
Bits 5:0 – SECOND[5:0]: Second
The alarm second. Seconds are matched only if MASKn.SEL is greater than 0.
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]
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