Atmel Evaluation Kit AT91SAM9G25-EK AT91SAM9G25-EK Data Sheet

887

SAM9G25 [DATASHEET]

11032C–ATARM–25-Jan-13

ADC_EMR

0xF804C040

Read-write  

This register can only be written if the WPEN bit is cleared in 

.

If CMPALL = 0: CMPSEL indicates which channel has to be compared.

If CMPALL = 1: No effect.

0 = Only channel indicated in CMPSEL field is compared.

1 = All channels are compared.

Number of consecutive compare events necessary to raise the flag = CMPFILTER+1

When programmed to 0, the flag rises as soon as an event occurs.

0 = Sets CHNB to zero in ADC_LDCR.

1 = Appends the channel number to the conversion result in ADC_LDCR register.

31

30

29

28

27

26

25

24

–

–

–

–

–

–

–

TAG

23

22

21

20

19

18

17

16

–

–

–

–

–

–

–

–

15

14

13

12

11

10

9

8

–

–

CMPFILTER

–

–

CMPALL

–

7

6

5

4

3

2

1

0

CMPSEL

–

–

CMPMODE

0

LOW

Generates an event when the converted data is lower than the low threshold of the window.

1

HIGH

Generates an event when the converted data is higher than the high threshold of the window.

2

IN

Generates an event when the converted data is in the comparison window.

3

OUT

Generates an event when the converted data is out of the comparison window.