Datasheet

晶汉达 · JHD
MODEL: JHD1804
10 INSTRUCTION SET
10
.
INSTRUCTION SET
COMMAND
COMMAND CODE
DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
COMMAND CODE
Screen Clear Set AC to 0
E-CYCLE
f
osc
=270KHz
SCREEN
RS
Screen
Clear
,
Set
AC
to
0
Cursor Reposition
1.53ms
SCREEN
CLEAR
0 0 0 0 0 0 0 1
DDRAM AD=0, Return,
Content Changeless
1.53ms
CURSOR
RETURN
0 0 0 0 0 0 0 1 *
Set moving direction of
Cursor Appoint if move
39usINPUT SET 0 0 0 0 0 0 1 I/D S
0
Cursor
,
Appoint
if
move
Set display on/off,cursor
on/off,blink on/off
39us
DISPLAY
SWITCH
0 0 0 0 0 1 D C B
Remove cursor and whole
display,DDRAM changeless
39usSHIFT 0 0 0 0 1 S/C R/L * *
Set DL,display line,font
39us
FUNCTION
SET
0 0 0 1 DL N F * *
Set CGRAM AD,
send receive data
39us
CGRAM
AD SET
0 0 1 ACG
Set DDRAM AD,
send receive data
39us
DDRAM
AD SET
0 1 ADD
Write data from CGRAM or
DDRAM
43us
CGRAM/
DDRAM
DATA WRITE
1 DATA WRITE
DDRAM: Display data RAM
CGRAM: Character
Generator RAM
ACG: CGRAM AD
E-cycle
changing
with main
frequency.
Example:
If fcp or
I/D=1: Increment Mode; I/D=0: Decrement Mode
S=1: Shift
S/C=1: Display Shift; S/C=0: Cursor Shift
R/L=1: Right Shift; R/L=0: Left Shift
ADD: DDRAM AD & Cursor
AD
AC: Address counter for
DDRAM & CGRAM
If
fcp
or
f
osc
=270KHz
40us x
250/270
=37us
R/L=1:
Right
Shift;
R/L=0:
Left
Shift
DL=1: 8D DL=0: 4D
N=1: 2R N=0: 1R
F=1: 5x10 Style; F=0: 5x7 Style
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