DATA SHEET - Glyn High-Tech Distribution
DATA SHEET - Glyn High-Tech Distribution DATA SHEET - Glyn High-Tech Distribution
HX8346-A(T)240RGBx320 dots, 262K color TFT controller driverDATA SHEET V01Figure 7. 111 Backlight Control 4 Register (R7Fh)Figure 7. 112 Backlight Control 5 Register (R80h)Figure 7. 113 Backlight Control 6 Register (R81h)Figure 7. 114 Backlight Control 7 Register (R82h)DBK: ON/OFF the operation of backlight control circuit.DBKOperation of backlight control circuit0 ON1 OFFLED_PA [3:0] : Set the pumping cycle of the backlight control circuit.Tosc=1/Fosc = R-C oscillation frequencyLED_PA[3] LED_PA[2] LED_PA[1] LED_PA[0] pumping cycle of LED_SW0 0 0 0 00 0 0 1 1 * Tosc0 0 1 0 2 * Tosc0 0 1 1 3 * Tosc0 1 0 0 4 * Tosc0 1 0 1 5 * Tosc0 1 1 0 6 * Tosc0 1 1 1 7 * Tosc1 0 0 0 8 * Tosc1 0 0 1 9 * Tosc1 0 1 0 10 * Tosc1 0 1 1 11 * Tosc1 1 0 0 12 * Tosc1 1 0 1 13 * Tosc1 1 1 0 14 * Tosc1 1 1 1 15 * ToscHimax ConfidentialThis information contained herein is the exclusive property of Himax and shall not be distributed, reproduced, or disclosedin whole or in part without prior written permission of Himax.-P.129-July, 2007
HX8346-A(T)240RGBx320 dots, 262K color TFT controller driverLED_PB [3:0] : Set the pumping duty pulse of the backlight control circuit.Tosc=1/Fosc = R-C oscillation frequencyLED_PB[3] LED_PB[2] LED_PB[1] LED_PB[0] pumping duty plus of LED_SW0 0 0 0 00 0 0 1 1 * Tosc0 0 1 0 2 * Tosc0 0 1 1 3 * Tosc0 1 0 0 4 * Tosc0 1 0 1 5 * Tosc0 1 1 0 6 * Tosc0 1 1 1 7 * Tosc1 0 0 0 8 * Tosc1 0 0 1 9 * Tosc1 0 1 0 10 * Tosc1 0 1 1 11 * Tosc1 1 0 0 12 * Tosc1 1 0 1 13 * Tosc1 1 1 0 14 * Tosc1 1 1 1 15 * ToscDATA SHEET V01BTRH[2:0]: Set backlight control circuit to control the LED current IBCBTRH2 BTRH1 BTRH0 I BC0 0 0 (4/35*VBGP)/R BC0 0 1 (5/35*VBGP)/R BC0 1 0 (6/35*VBGP)/R BC0 1 1 (7/35*VBGP)/R BC1 0 0 (8/35*VBGP)/R BC1 0 1 (9/35*VBGP)/R BC1 1 0 (10/35*VBGP)/R BC1 1 1 (11/35*VBGP)/R BCPWM_PERIOD[7:0] : Set the operating frequency of the backlight control circuit. Whenusing the higher frequency, the driving ability of the step-up circuitand the display quality are high, but the current consumption isincreased. The tradeoff is between the display quality and thecurrent consumption.Fosc = R-C oscillation frequencyPWM_PERIOD [7:0] Operation Frequency of backlight control circuit0000 0000 Inhibit0000 0001 Fosc / 320000 0010 Fosc / 640000 0011 Fosc / 96: :1111 1110 Fosc / 81281111 1111 Fosc / 8160Himax ConfidentialThis information contained herein is the exclusive property of Himax and shall not be distributed, reproduced, or disclosedin whole or in part without prior written permission of Himax.-P.130-July, 2007
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HX8346-A(T)240RGBx320 dots, 262K color TFT controller driver<strong>DATA</strong> <strong>SHEET</strong> V01Figure 7. 111 Backlight Control 4 Register (R7Fh)Figure 7. 112 Backlight Control 5 Register (R80h)Figure 7. 113 Backlight Control 6 Register (R81h)Figure 7. 114 Backlight Control 7 Register (R82h)DBK: ON/OFF the operation of backlight control circuit.DBKOperation of backlight control circuit0 ON1 OFFLED_PA [3:0] : Set the pumping cycle of the backlight control circuit.Tosc=1/Fosc = R-C oscillation frequencyLED_PA[3] LED_PA[2] LED_PA[1] LED_PA[0] pumping cycle of LED_SW0 0 0 0 00 0 0 1 1 * Tosc0 0 1 0 2 * Tosc0 0 1 1 3 * Tosc0 1 0 0 4 * Tosc0 1 0 1 5 * Tosc0 1 1 0 6 * Tosc0 1 1 1 7 * Tosc1 0 0 0 8 * Tosc1 0 0 1 9 * Tosc1 0 1 0 10 * Tosc1 0 1 1 11 * Tosc1 1 0 0 12 * Tosc1 1 0 1 13 * Tosc1 1 1 0 14 * Tosc1 1 1 1 15 * ToscHimax ConfidentialThis information contained herein is the exclusive property of Himax and shall not be distributed, reproduced, or disclosedin whole or in part without prior written permission of Himax.-P.129-July, 2007
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