Philips S1D13505 用户手册

Epson Research and Development

Page 11

Vancouver Design Center

Evaluation Board User Manual

S5U13505-D9000

Issue Date: 01/02/05

X23A-G-002-04

2.1.3 Touchscreen Support

If the LCD panel being used has an integrated Touchscreen, the touchscreen interface signals are
connected to header strip TS1. These signals are then routed through JP3 and into the standard
"Platform II Audio/Touch" peripheral board. Pinout assignment is described in the table below.

2.1.4 CRT Support

The S1D13505 has an embedded RAMDAC and provides complete one-chip CRT support. Refer to
the Programmer’s Notes and Examples, document number X23A-G-003-xx, for programming
details.

2.1.5 Jumper Selection

Jumpers labelled LCDVCC1 and FPS2 provide LCD logic supply voltage and connector pinout
options respectively. Jumper options are described in the table below.

Note

Setting the panel supply voltage to 5V does not affect the signalling voltage which remains at
3.3V.

2.1.6 Adjustable LCD BIAS Power Supply

Many color passive LCD panels require a positive power supply to provide the LCD BIAS voltage.
Such a power supply has been provided as an integral part of this design. The signal VDDH can be
adjusted by R16 to provide an output voltage from +24V to +38V (I

out

= 45mA) and is

enabled/disabled by the S1D13505 control signal LCDPWR.

Table 2-2: Touchscreen Header (TS1) Pinout

Pin #

Signal

GND

Table 2-3: Touchscreen Header Pinout

Jumper

Function

1-2

2-3

LCDVCC1

LCD logic supply

3.3V

FPS2

FPSHIFT2/DRDY/MOD

To pin 38

To pin 35

= default settings