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SSD1963 Datasheet(PDF) 54 Page - List of Unclassifed Manufacturers |
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SSD1963 Datasheet(HTML) 54 Page - List of Unclassifed Manufacturers |
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54 / 93 page  Solomon Systech Jan 2010 P 54/93 Rev 1.1 SSD1963 9.45 set_pwm_conf Command 0xBE Parameters 6 D/C D7 D6 D5 D4 D3 D2 D1 D0 Hex Command 0 1 0 1 1 1 1 1 0 BE Parameter 1 1 PWMF7 PWMF6 PWMF5 PWMF4 PWMF3 PWMF2 PWMF1 PWMF0 xx Parameter 2 1 PWM7 PWM6 PWM5 PWM4 PWM3 PWM2 PWM1 PWM0 xx Parameter 3 1 0 0 0 0 C3 0 0 C0 xx Parameter 4 1 D7 D6 D5 D4 D3 D2 D1 D0 xx Parameter 5 1 E7 E6 E5 E4 E3 E2 E1 E0 xx Parameter 6 1 0 0 0 0 F3 F2 F1 F0 xx Description Set the PWM configuration PWMF[7:0] : Set the PWM frequency in system clock (POR = 00000000) PWM signal frequency = PLL clock / (256 * PWMF[7:0]) / 256 PWM[7:0] : Set the PWM duty cycle (POR = 00000000) PWM duty cycle = PWM[7:0] / 256 for DBC disable (0xD0] A0 = 0 If DBC enable (0xD0] A0 = 1, these parameter will be ignored Note : PWM always 0 if PWM[7:0] = 00h Figure 9-19: PWM signal PWM[7:0]/256 * Period PWM Period = 1/ PWM Freq C[3] : PWM configuration (POR = 0) 0 PWM controlled by host 1 PWM controlled by DBC C[0] : PWM enable (POR = 0) 0 PWM disable 1 PWM enable D[7:0] : DBC manual brightness (POR = 00000000) Set the manual brightness level. When Manual Brightness Mode (0xD0) A[6] is enabled, the final DBC duty cycle output will be multiplied by this value / 255. PWM duty cycle = DBC output * D[7:0] / 255 00 Dimmest FF brightest E[7:0] : DBC minimum brightness (POR = 00000000) Set the minimum brightness level. WhenManual Brightness Mode (0xD0) A[6] is enabled, DBC duty cycle output will be limited by this value. This will prevent from backlight being too dark or off. 00 Dimmest FF Brightest |
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