JEWEL HILL ELECTRONIC CO.,LTD.
7. MODULE FUNCTION DESCRIPTION
7.1. PIN DESCRIPTION
Pin No. Symbol
Description
Power supply for positive (5V)
1
2
VDD
VSS
VLCD
RES
E1
Power supply for Ground (0V)
LCD driver voltage regulation terminal
Reset signal input pin, Low level is active
3
4
5
Read/write enable signal input pin
6
E2
Read/write selection signal, R/W=”H”: Read; R/W=”L”: Write
Data/command signed select, RS=”H”: Data; RS=”L”: Command
7
R/W
A0
8
9
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
LED+
LED-
10
11
12
13
14
15
16
17
18
8-bit bi-directional data bus
Backlight power supply voltage for positive
Backlight power supply voltage for negative
GB12232B
VER: 4.0
- 6 -
Issue date: 2006/08/01