Atmel Evaluation Kit AT91SAM9M10-G45-EK AT91SAM9M10-G45-EK Data Sheet

 1094

SAM9M10 [DATASHEET]

6355F–ATARM–12-Mar-13

Name: CONTRAST_CTR

0x00500840

Access: Read-write

Reset value: 0x00000000

This 2-bit value selects the configuration of a counter prescaler. The meaning of each combination is as follows:

This bit defines the polarity of the output. If 1, the output pulses are high level (the output will be high whenever the value in
the counter is less than the value in the compare register CONSTRAST_VAL). If 0, the output pulses are low level.

When 1, this bit enables the operation of the PWM generator. When 0, the PWM counter is stopped.

31

30

29

28

27

26

25

24

–

–

–

–

–

–

–

–

23

22

21

20

19

18

17

16

–

–

–

–

–

–

–

–

15

14

13

12

11

10

9

8

–

–

–

–

–

–

–

–

7

6

5

4

3

2

1

0

–

–

–

–

ENA

POL

PS

0

0

The counter advances at a rate of fCOUNTER = fLCDC_CLOCK.

0

1

The counter advances at a rate of fCOUNTER = fLCDC_CLOCK/2.

1

0

The counter advances at a rate of fCOUNTER = fLCDC_CLOCK/4.

1

1

The counter advances at a rate of fCOUNTER = fLCDC_CLOCK/8.