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1.7.7 LCD Interface
For convenience in mounting various displays the 210 has three LCD connectors one
of which is a 45pin and can work with both one wire touch LCDs and capacitive LCDs.
The LCD control signals are the same on all connectors with horizontal and vertical
scan, clock, enable, disable etc., and 8:8:8 models of RGB data. It has a PWM output
and a reset signal (nRESET). LCD_PWR is the backlight switch signal.
Since we apply the one wire precise touch technology neither LCD interface has the
four wire resistor touch pins that the CPU uses by default (LCD1-37, 38, 39 and 40).
This way gives us flexibility to connect capacitive screens. The LCD2 has more CPU
pins
LCD1 & LCD2
Pin Spec
LCD1 & LCD2
Pin Spec
1
VDD_5V
2
VDD_5V
3
VD0
4
VD1
5
VD2
6
VD3
7
VD4
8
VD5
9
VD6
10
VD7
11
GND
12
VD8
13
VD9
14
VD10
15
VD11
16
VD12
17
VD13
18
VD14
19
VD15
20
GND
