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PDF ( 数据手册 , 数据表 ) LM3033CDW-0B-1

零件编号 LM3033CDW-0B-1
描述 LCD Module
制造商 Topway
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LM3033CDW-0B-1 数据手册, 描述, 功能
LM3033CDW-0B-1
LCD Module User Manual
Prepared by:
Cai
Date: 2008-06-20
Checked by:
Date:
Rev. Descriptions
0.1 Preliminary New release
Approved by:
Date:
Release Date
2008-06-20
URL: www.topwaydisplay.com
www.topwaysz.com
Document Name: LM3033CDW-0B-1-Manual-Rev0.1.DOC
Page: 1 of 14







LM3033CDW-0B-1 pdf, 数据表
TOPWAY
LCD Module User Manual
LM3033CDW-0B-1
4. Function Specifications
4.1 Resetting the LCD module
The LCD module should be initialized by setting /RST terminal at low level when turning the
power on. See the reset timing section for details.
The initialized status is as follow:
Functions
ENTER MODE SET
DISPLAY STATUS
FUNCTION SET
SCROLL OR RAM ADDR. SELECT
REVERSE
EXTENDED FUNCTION SET
Initialized Status
I/D=1
cursor move to right
S=0 DDRAM address counter (AC) plus 1
D=0 display = OFF
C=0 cursor = OFF
B=0 cursor position blink = OFF
DL=1
8bit Interface
RE=0
Basic Instruction Set
SR=0
CGRAM address access is enabled
R1=0, R0=0 First line normal
G=0 Graphic Display OFF
4.2 Using Parallel interface
When PSB=H, the LCD module is in parallel interface mode. 8-bit or 4-bit bus interface could
be selected by FUNCTION SET instruction DL bit.
In 4-bit bus interface, every 8-bit instruction/data is separated into two parts. First, transfer
the higher 4-bit (D7~D4). Then transfer the lower 4-bit (D3~D0). They are transferred via
DB7~DB4 terminals, where DB3~DB0 are not in used (leave open or pull high)
4.3 Using Serial interface
When PSB=L, the LCD module is in serial interface mode (write only).
In this mode, CS pin should be used. CS=H, enable the data transfer. CS=L, reset the serial
data counter, terminate the data transition and clear the data buffer.
As the controller IC have no instruction buffer area, it must wait for the previous instruction to
finish before sending the next one. Thus transferring multiple instruction/data, execution time
must be considered.
Starting a transmission, a start byte is required. It consists 5 consecutive “1” follow with a “0”,
a RS bit (Register Select bit) and a “0”.
Then the 8bit instruction/data should be separated into 2 groups. First group is DB7 to DB4,
followed by 4 consecutive “0”. The second group is DB3 to DB0 with 4 consecutive “0”.
See the Data Sequence Diagram for details.
Data Sequence Diagram (Serial Mode)
URL: www.topwaydisplay.com
www.topwaysz.com
Document Name: LM3033CDW-0B-1-Manual-Rev0.1.DOC
Page: 8 of 14














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