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 driver7.16 OSC Control 2 Register (R1Ah)DATA SHEET V01Figure 7. 26 OSC Control Register 2 (R1Ah)OSC_TEST: If OSC is fed from OSC pin, please set OSC_TEST to 17.17 Power Control 1 Register (R1Bh)Figure 7. 27 Power Control 1 Register (R1Bh)NISDENB: This stands for abnormal power-off supervisal function when the power isoff. It’s for monitoring power status by NISD pad when NISDENB is set to 0.PON: Specify on/off control of step-up circuit 2 for VGH, VGL voltage generation.For detail, see the Power Supply Setting Sequence.PON Operation of step-up circuit 20 OFF1 ONDK: Specify on/off control of step-up circuit 1 for VLCD voltage generation. For detail,see the Power Supply Setting Sequence.DK Operation of step-up circuit 10 ON1 OFFSTB: When STB = “1”, the HX8346-A into the standby mode, where all displayoperation stops, suspend all the internal operations including the internal R-Coscillator. During the standby mode, only the following process can be executed. Fordetails, please refer to STB mode flow.a. Start the oscillationb. Exit the Standby mode (STB = “0”) ,In the standby mode, the GRAM data and register content are retained.Himax 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.95-July, 2007
HX8346-A(T)240RGBx320 dots, 262K color TFT controller driverDATA SHEET V01XDK, VLCD_TRI: Specify the ratio of step-up circuit for VLCD voltage generation.VLCD_TRI XDK Step up circuit 1 Capacitor connection pins0 0 2 x VCI C11A, C11B0 1 2 x VCI C11A, C11B, CX11A, CX11B1 0 3 x VCI C11A, C11B, CX11A, CX11B1 1 inhabit inhabit7.18 Power Control 2 Register (R1Ch)Figure 7. 28 Power Control 3 Register (R1Ch)AP(2-0)Adjust the amount of current driving for the operational amplifier in the power supplycircuit. When the amount of fixed current is increased, the LCD driving capacity andthe display quality are high, but the current consumption is increased. This is atradeoff, Adjust the fixed current by considering both the display quality and thecurrent consumption, AP(2-0) can be set as “000” when display is off, the currentconsumption can be reduced by stopping the operations of operational amplifier andstep-up circuit.AP2 AP1 AP0 Constant Current of Operational Amplifier0 0 0 Power Circuit Off0 0 1 Ignore0 1 0 Ignore0 1 1 Ignore1 0 0 11 0 1 1.251 1 0 1.51 1 1 Ignore7.19 Power Control 3 Register (R1Dh)Figure 7. 29 Power Control 3 Register (R1Dh)Himax 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.96-July, 2007
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HX8346-A(T)240RGBx320 dots, 262K color TFT controller driver7.16 OSC Control 2 Register (R1Ah)<strong>DATA</strong> <strong>SHEET</strong> V01Figure 7. 26 OSC Control Register 2 (R1Ah)OSC_TEST: If OSC is fed from OSC pin, please set OSC_TEST to 17.17 Power Control 1 Register (R1Bh)Figure 7. 27 Power Control 1 Register (R1Bh)NISDENB: This stands for abnormal power-off supervisal function when the power isoff. It’s for monitoring power status by NISD pad when NISDENB is set to 0.PON: Specify on/off control of step-up circuit 2 for VGH, VGL voltage generation.For detail, see the Power Supply Setting Sequence.PON Operation of step-up circuit 20 OFF1 ONDK: Specify on/off control of step-up circuit 1 for VLCD voltage generation. For detail,see the Power Supply Setting Sequence.DK Operation of step-up circuit 10 ON1 OFFSTB: When STB = “1”, the HX8346-A into the standby mode, where all displayoperation stops, suspend all the internal operations including the internal R-Coscillator. During the standby mode, only the following process can be executed. Fordetails, please refer to STB mode flow.a. Start the oscillationb. Exit the Standby mode (STB = “0”) ,In the standby mode, the GRAM data and register content are retained.Himax 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.95-July, 2007