Epson Research and Development
Page 17
Vancouver Design Center
S5U13513P00C100 Evaluation Board User Manual
S1D13513
Issue Date: 2010/09/06
X78A-G-003-01
Revision 1.1
4.5 LCD Panel Interface
The LCD interface signals are available on connectors H4 and H5. Connector H5 includes
GPIOG[4:0] which may be used as additional signals for extended TFT interfaces. For
S1D13513 LCD interface pin mapping, refer to the
S1D13513 Hardware Functional Speci-
fication
, document number X78B-A-001-xx.
Connectors H4 and H5 are both 0.1x0.1” 40-pin headers (20x2). For the pinout of
connectors H4 and H5, see “Schematic Diagrams” on page 24.
On the evaluation board there is an adjustable 6~24V, 40mA max. power supply. This
voltage is provided only on connector H4 (it is not used elsewhere on the board). It is
intended for use to power the LED backlight on some LCD panels. The voltage is adjusted
by the R106 pot.
Note
For LCD panels that use CCFL backlight, an external power supply must be used to pro-
vide power to the inverter for CCFL backlight. Usually, the inverter current consump-
tion is higher than the maximum 40mA current available from the on-board voltage
regulator.
The following diagram shows the location of the LCD panel connectors H4 and H5.
Figure 4-2: LCD Panel Connectors Locations (H4, H5)
H5
H4
