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Epson Research and Development Page 149
Vancouver Design Center
Hardware Functional Specification S1D13708
Issue Date: 02/03/07 X39A-A-001-02
bit 7 GPO0 Control
This bit controls the General Purpose Output 0 pin.
Writing a 0 to this bit drives GPO0 to low.
Writing a 1 to this bit drives GPO0 to high.
This bit has no effect when HR-TFT panel type is selected.
Note
Many implementations use the GPO0 pin to control the LCD bias power (see Section
6.3, “LCD Power Sequencing” on page 66).
General Purpose IO Pins Status/Control Register 1
REG[ADh] Read/Write
GPO0 Control n/a
7 6 5 4 3 2 1 0