SAM3SD8C Atmel Corporation, SAM3SD8C Datasheet - Page 261

• Manufacturer Part Number: SAM3SD8C
• Manufacturer: Atmel Corporation

14.5.7
Name:
Address:
Access:
• ACKUPD: Acknowledge for Update
0 = Time and calendar registers cannot be updated.
1 = Time and calendar registers can be updated.
• ALARM: Alarm Flag
0 = No alarm matching condition occurred.
1 = An alarm matching condition has occurred.
• SEC: Second Event
0 = No second event has occurred since the last clear.
1 = At least one second event has occurred since the last clear.
• TIMEV: Time Event
0 = No time event has occurred since the last clear.
1 = At least one time event has occurred since the last clear.
The time event is selected in the TIMEVSEL field in RTC_CR (Control Register) and can be any one of the following
events: minute change, hour change, noon, midnight (day change).
• CALEV: Calendar Event
0 = No calendar event has occurred since the last clear.
1 = At least one calendar event has occurred since the last clear.
The calendar event is selected in the CALEVSEL field in RTC_CR and can be any one of the following events: week
change, month change and year change.
11090A–ATARM–10-Feb-12
11090A–ATARM–10-Feb-12
31
23
15
–
–
–
7
–
RTC Status Register
RTC_SR
0x400E1478
Read-only
30
22
14
–
–
–
6
–
29
21
13
–
–
–
5
–
CALEV
28
20
12
–
–
–
4
TIMEV
27
19
11
–
–
–
3
SEC
26
18
10
–
–
–
2
ALARM
SAM3S8/SD8
SAM3S8/SD8
25
17
–
–
–
9
1
ACKUPD
24
16
–
–
–
8
0
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