
SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY MODULE
MODEL NO: 16235
3. OPERATING PRINCIPALS AND METHODES
Control and Display Command
Command
RS
R/W
Display Clear
L
L
Return Home
L
L
Entry Mode Set
L
L
PACIFIC DISPLAY DEVICES
07.01.2003
11
DB
7
L
L
L
DB
6
L
L
L
DB
5
L
L
L
DB
4
L
L
L
DB
3
L
L
L
DB
2
L
L
H
DB
1
L
H
I/D
DB
0
H
X
SH
Exe Time
f=250khz
1.64ms
1.64ms
42
μ
s
Remark
Cursor move to first digit
I/D : Set cursor move direction
SH : Specifies shift of display
shifted
Display On/Off
L
L
L
L
L
L
H
D
C
B
42
μ
s
Display
Cursor
Blinking
Shift
L
L
L
L
L
H
S/C
R/L
X
X
42
μ
s
Set Function
L
L
L
L
H
DL
N
F
X
X
42
μ
s
Set Cg Ram Address
L
L
L
H
CG RAM address
(corresponds to cursor address)
DD RAM address
42
μ
s
CG RAM Data is sent and
received after this setting
DD RAM Data is sent and
received after this setting
Reads BF indication internal
operating is being performed
Reads addr counter contents
Write data into DD or CG RAM
Read data from DD or CG RAM
Set Dd Ram
Address
Read Busy Flag &
Address
L
L
H
42
μ
s
L
H
BF
Address Counter used for
both DD & CG RAM address
0
μ
s
Write Data
Read Data
X : Don’t care
H
H
L
H
Write Data
Read Data
46
μ
s
46
μ
s
BF
H Busy
L
Ready
F
H 5 X 10 dots
L
5 X 7 dots
N
H 2 line display
L
1 line display
DL
H 8 bits interface
L
4 bits interface
S/C
H Display shift
L
Cursor move
R/L
H Right shift
L
Left shift
B
H Blinking on
L
Blinking off
C
H Cursor on
L
Cursor off
D
H Display on
L
Display off
I/D
H Increase
L
Decrease
SH
H Display is shifted
L
Display is not