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Atmel Xplained Pro Evaluation Kit ATSAMD20-XPRO ATSAMD20-XPRO Ficha De Dados

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ATSAMD20-XPRO
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Atmel | SMART SAM D20 [DATASHEET]
Atmel-42129K–SAM-D20_datasheet–06/2014
18.8.14 Alarm n Value
18.8.14.1 Mode 2
Name:
ALARMn
Offset:
0x18 + n*0x8 [n=0..3]
Reset:
0x00000000
Property:
Write-Protected, Write-Synchronized
The 32-bit value of ALARMn is continuously compared with the 32-bit CLOCK value, based on the masking set by 
MASKn.SEL. When a match occurs, the Alarm n 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.
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