Datasheet

1005
SAM9G15 [DATASHEET]
11052D–ATARM–31-Oct-12
44.7.7 LCD Controller Configuration Register 6
Name: LCDC_LCDCFG6
Address: 0xF8038018
Access: Read-write
Reset: 0x00000000
• PWMPS: PWM Clock Prescaler
3-bit value. Selects the configuration of the counter prescaler module. The PWMPS field decoding is listed below.
• PWMPOL: LCD Controller PWM Signal Polarity
This bit defines the polarity of the PWM output signal. If set to one, the output pulses are high level (the output will be high when-
ever the value in the counter is less than the value CVAL) If set to zero, the output pulses are low level.
• PWMCVAL: LCD Controller PWM Compare Value
PWM compare value. Used to adjust the analog value obtained after an external filter to control the contrast of the display.
31 30 29 28 27 26 25 24
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23 22 21 20 19 18 17 16
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15 14 13 12 11 10 9 8
PWMCVAL
76543210
– – – PWMPOL – PWMPS
Table 44-57.
Value Name Description
0 0 0 DIV_1 The counter advances at a rate of fCOUNTER = fPWM_SELECTED_CLOCK
0 0 1 DIV_2 The counter advances at a rate of fCOUNTER = fPWM_SELECTED_CLOCK/2
0 1 0 DIV_4 The counter advances at a rate of fCOUNTER = fPWM_SELECTED_CLOCK/4
0 1 1 DIV_8 The counter advances at a rate of fCOUNTER = fPWM_SELECTED_CLOCK/8
1 0 0 DIV_16 The counter advances at a rate of fCOUNTER = fPWM_SELECTED_CLOCK/16
1 0 1 DIV_32 The counter advances at a of rate fCOUNTER = fPWM_SELECTED_CLOCK/32
1 1 0 DIV_64 The counter advances at a of rate fCOUNTER = fPWM_SELECTED_CLOCK/64