參數(shù)資料
型號(hào)： GDM12864A
廠商： Electronic Theatre Controls, Inc.
英文描述： Liquid Crystal Display Module
中文描述： 液晶顯示模塊
文件頁(yè)數(shù)： 7/22頁(yè)
文件大?。?/td> 198K
代理商： GDM12864A
Chapter 1 Introduction to GDM12864A LCM
5
Interface Pin Connections
Pin
No.
1
2
3
4
Symbol
I/O Type Description
VSS
VDD
V0
D/I
Supply
Supply
Supply
Ground
Power supply
LCD driver supply voltage
Data input/output pin of internal shift register
MS SHL DIO1 DIO2
H H Output Output
H L Output Output
L H Input Output
L L Output Input
Read or Write
5
R/W
RW Description
H Data appears at DB[7:0] and can be read by the CPU while
E= H CS1B=L,CS2B=L and CS3=H.
L Display data DB[7:0] can be written at falling edge of E
when CS1B=L, CS2B=L and CS3=H.
Enable signal
6
E
E Description
H Read data in DB[7:0] appears while E= “High”.
L Display data DB[7:0] is latched at falling edge of E.
Data bus [0~7]
7
8
9
10
11
12
13
14
15
16
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
CS1
CS2
I/O
Bi-directional data bus
I
Chip selection
When CS1=H,CS2=L, select IC1
When CS1=L,CS2=H, select IC2
Reset signal.
17
RESETB I
When RSTB=L
1
ON/OFF register becomes set by 0.(display off)
2
display start line register becomes set by 0 (Z-address 0 set, display
from line 0)
3
After releasing reset , this condition can be changed only by
instruction.
18
19
20
VEE
A
K
Power
VEE is connected by the same voltage.
Back-light anode
Back-light cathode
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