at91sam9263 ATMEL Corporation, at91sam9263 Datasheet - Page 910

• Manufacturer Part Number: at91sam9263
• Description: At91 Arm Thumb Microcontrollers
• Manufacturer: ATMEL Corporation

43.11.25 Contrast Control Register
Name: CONTRAST_CTR
Access: Read/Write
Reset value: 0x00000000
• PS
This 2-bit value selects the configuration of a counter prescaler. The meaning of each combination is as follows:
• POL
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.
• ENA
When 1, this bit enables the operation of the PWM generator. When 0, the PWM counter is stopped.
6249D–ATARM–20-Dec-07
31
23
15
–
–
–
7
–
0
0
1
1
PS
30
22
14
–
–
–
6
–
0
1
0
1
The counter advances at a rate of fCOUNTER = fLCDC_CLOCK.
The counter advances at a rate of fCOUNTER = fLCDC_CLOCK/2.
The counter advances at a rate of fCOUNTER = fLCDC_CLOCK/4.
The counter advances at a rate of fCOUNTER = fLCDC_CLOCK/8.
29
21
13
–
–
–
5
–
28
20
12
–
–
–
4
–
ENA
27
19
11
–
–
–
3
AT91SAM9263 Preliminary
POL
26
18
10
–
–
–
2
25
17
–
–
9
–
1
PS
24
16
–
–
8
–
0
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