Atmel ARM-Based Evaluation Kit AT91SAM9N12-EK AT91SAM9N12-EK Data Sheet

160

SAM9N12/SAM9CN11/SAM9CN12 [DATASHEET]

11063K–ATARM–05-Nov-13

SHDW_MR

0xFFFFFE14

Read/Write 

Defines the minimum duration of the WKUP1 pin after the occurence of the selected triggering edge (WKMODE0).

The SHDN pin is released if the WKUP0 holds the selected level for (CPTWK * 16 + 1) consecutive Slow Clock cycles after the 
occurence of the selected triggering edge on WKUP0.

0: The RTC Alarm signal has no effect on the Shutdown Controller.

1: The RTC Alarm signal forces the de-assertion of the SHDN pin.

31

30

29

28

27

26

25

24

–

–

–

–

–

–

–

–

23

22

21

20

19

18

17

16

–

–

–

–

–

–

RTCWKEN

–

15

14

13

12

11

10

9

8

–

–

–

–

–

–

–

–

7

6

5

4

3

2

1

0

CPTWK0

–

–

WKMODE0

0

NO_DETECTION

No detection is performed on the wake-up input

1

RISING_EDGE

Low to high transition triggers the detection process

2

FALLING_EDGE

High to low level transition triggers the detection process

3

ANY_EDGE

Any edge on the wake-up input triggers the detection process