CDM-20210 Ver la hoja de datos (PDF) - Unspecified
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CDM-20210 Datasheet PDF : 17 Pages
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SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY MODULE
MODEL NO: 20210
3. OPERATING PRINCIPALS AND METHODES
• Control and Display Command
Command
Display Clear
Return Home
Entry Mode Set
Exe Time
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 f=250khz
Remark
L
L
L
L
L
L
L
L
L
H
1.64ms
L
L
L
L
L
L
L
L
H
X
1.64ms Cursor move to first digit
L
L
L
L
L
L
L
H I/D SH
42µs
• I/D : Set cursor move direction
H Increase
I/D
L Decrease
• SH : Specifies shift of display
H Display is shifted
SH
L Display is not
shifted
Display On/Off
Shift
Set Function
L
L
L
L
L
L
H
D
C
B
L
L
L
L
L
H S/C R/L X
X
L
L
L
L
H DL N
F
X
X
42µs
• Display
H Display on
D
L Display off
• Cursor
H
C
L
• Blinking
Cursor on
Cursor off
H Blinking on
B
L Blinking off
42µs
H Display shift
S/C
L Cursor move
H Right shift
R/L
L Left shift
42µs
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
Set Dd Ram
L
Address
Read Busy Flag &
L
Address
L
L
H
L
H
H BF
CG RAM address
(corresponds to cursor address)
DD RAM address
Address Counter used for
both DD & CG RAM address
Write Data
Read Data
X : Don’t care
H
L
H
H
PACIFIC DISPLAY DEVICES
Write Data
Read Data
04.11.2003
42µs
CG RAM Data is sent and
received after this setting
42µs
DD RAM Data is sent and
received after this setting
0µs
H Busy
BF
L Ready
− Reads BF indication internal
operating is being performed
− Reads addr counter contents
46µs
Write data into DD or CG RAM
46µs
Read data from DD or CG RAM
11
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