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1745D–ATARM–04-Nov-05
AT91M55800A
13.3.6 RTC Calendar Alarm Register
Register Name: RTC_CAR
Access Type: Read/Write
Reset State: 0x0
Offset: 0x14
• MONTH: Month Alarm
This field is the alarm field corresponding to the BCD-coded month counter.
• MTHEN: Month Alarm Enable
•DATE: Date Alarm
This field is the alarm field corresponding to the BCD-coded date counter.
• DATEN: Date Alarm Enable
31 30 29 28 27 26 25 24
DATEN
–
DATE
23 22 21 20 19 18 17 16
MTHEN
––
MONTH
15 14 13 12 11 10 9 8
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76543210
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MTHEN Selected MTHEN Code Label
0 The month matching alarm is disabled. RTC_MONTH_ALARM_DIS
1 The month matching alarm is enabled. RTC_MONTH_ALARM_EN
DATEN Selected DATEN Code Label
0 The date matching alarm is disabled. RTC_DATE_ALARM_DIS
1 The date matching alarm is enabled. RTC_DATE_ALARM_EN