HX8347 - Adafruit

HX8347-G(T)240RGB x 320 dot, 262K color, TFT Mobile Single Chip Driver6.23 Power control 6 register (PAGE0 -1Fh)DATA SHEET Preliminary V01R/WWDNC1R 1RB7GASENGASENRB6 RB5 RB4 RB3 RB2 RB1 RB0DDVVCO* PON DK XDK DH_T STBMGRIVCOMG* PON DK XDKDDVDH_TRISTBFigure 6.33: Power control 6 register (PAGE0 -1Fh)PON: Specify on/off control of step-up circuit 2 for VCL, VGL voltage generation.For detail, see the Power On/Off Setting Flow.PON Operation of Step-up Circuit 20 OFF1 ONDK: Specify on/off control of step-up circuit 1 for DDVDH voltage generation. Fordetail, see the Power Supply Setting Sequence.DK Operation of Step-up Circuit 10 ON1 OFFSTB: When STB = ‘1’, the HX8347-G into the standby mode, where all displayoperations stop, 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.XDK, DDVDH_TRI: Specify the ratio of step-up circuit for DDVDH voltage generation.DDVDH_TRI XDK Step-up Circuit 1 Capacitor Connection Pins Used0 0 2 x VCI C11P, C11N0 1 2 x VCI C11P, C11N, C12P, C12N1 0 3 x VCI C11P, C11N, C12P, C12N1 1 Setting inhabited Setting inhabitedVCOMG: When VCOMG = ‘1’, VCOML voltage can output to negative voltage (1.0V ~VCL+0.5V). When VCOMG = ‘0’, VCOML outputs GND and VML[7:0] setting areinvalid. Then, low power consumption is accomplished.GASEN: This stands for abnormal power-off monitor function when the power is off.Himax ConfidentialFor Go-tek OnlyThis 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.138-October, 2009