Atmel SAM4S-XPLD Atmel ATSAM4S-XPLD ATSAM4S-XPLD Scheda Tecnica

 267

SAM4S [DATASHEET]

11100E–ATARM–24-Jul-13

Name:  

RTC_CR

0x400E1460

Access:  

Read-write

0 = No effect.

1 = Stops the RTC time counting.

Time counting consists of second, minute and hour counters. Time counters can be programmed once this bit is set and acknowl-
edged by the bit ACKUPD of the Status Register.

0 = No effect.

1 = Stops the RTC calendar counting.

Calendar counting consists of day, date, month, year and century counters. Calendar counters can be programmed once this bit 
is set.

The event that generates the flag TIMEV in RTC_SR (Status Register) depends on the value of TIMEVSEL.

The event that generates the flag CALEV in RTC_SR depends on the value of CALEVSEL

31

30

29

28

27

26

25

24

–

–

–

–

–

–

–

–

23

22

21

20

19

18

17

16

–

–

–

–

–

–

CALEVSEL

15

14

13

12

11

10

9

8

–

–

–

–

–

–

TIMEVSEL

7

6

5

4

3

2

1

0

–

–

–

–

–

–

UPDCAL

UPDTIM

0

MINUTE

Minute change

1

HOUR

Hour change

2

MIDNIGHT

Every day at midnight

3

NOON

Every day at noon

0

WEEK

Week change (every Monday at time 00:00:00)

1

MONTH

Month change (every 01 of each month at time 00:00:00)

2

YEAR

Year change (every January 1 at time 00:00:00)