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SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY MODULE
MODEL NO: 16244
3. OPERATING PRINCIPALS AND METHODES
3. OPERATING PRINCIPALS AND METHODES
• Control and Display Command
• Control and Display Command
Command
Command
RS
RS
R/W
R/W
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
Exe Time
Exe Time
f=250khz
f=250khz
Remark
Remark
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
Display Clear
L
L
L
L
L
L
L
L
L
H
1.64ms
Return Home
L
L
L
L
L
L
L
L
H
X
1.64ms
Cursor move to first digit
Entry Mode Set
L
L
L
L
L
L
L
H
I/D
SH
42
μs
• I/D : Set cursor move direction
• SH : Specifies shift of display
Display On/Off
L
L
L
L
L
L
H
D
C
B
42
μs
• Display
• Cursor
• Blinking
H
Increase
I/D
L
Decrease
H
Display is shifted
SH
L
Display is not
shifted
H
Display on
D
L
Display off
H
Cursor on
C
L
Cursor off
H
Blinking on
B
L
Blinking off
Shift
L
L
L
L
L
H
S/C
R/L
X
X
42
μs
Set Function
L
L
L
L
H
DL
N
F
X
X
42
μs
H
Display shift
S/C
L
Cursor move
H
Right shift
R/L
L
Left shift
H
8 bits interface
DL
L
4 bits interface
H
2 line display
N
L
1 line display
H
5 X 10 dots
F
L
5 X 7 dots
Set Cg Ram Address
L
L
L
H
CG RAM address
(corresponds to cursor address)
42
μs
CG RAM Data is sent and
received after this setting
Set Dd Ram
Address
L
L
H
DD RAM address
42
μs
DD RAM Data is sent and
received after this setting
Read Busy Flag &
Address
L
H
BF
Address Counter used for
both DD & CG RAM address
0
μs
− Reads BF indication internal
operating is being performed
− Reads addr counter contents
Write Data
H
L
Write Data
46
μs
Write data into DD or CG RAM
Read Data
H
H
Read Data
46
μs
Read data from DD or CG RAM
H
Busy
BF
L
Ready
X : Don’t care
PACIFIC DISPLAY DEVICES
11.07.2005
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