ST7066U
l
Display ON/OFF
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
Code
0
0
0
0
0
0
1
D
C
B
Control display/cursor/blink ON/OFF 1 bit register.
Ø
Ø
Ø
D : Display ON/OFF control bit
When D = "High", entire display is turned on.
When D = "Low", display is turned off, but display data is remained in DDRAM.
C : Cursor ON/OFF control bit
When C = "High", cursor is turned on.
When C = "Low", cursor is disappeared in current display, but I/D register remains its data.
B : Cursor Blink ON/OFF control bit
When B = "High", cursor blink is on, that performs alternate between all the high data and display
character at the cursor position.
When B = "Low", blink is off.
Cursor or Display Shift
l
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
Code
0
0
0
0
0
1
S/C R/L
x
x
Without writing or reading of display data, shift right/left cursor position or display. This instruction is used to
correct or search display data. During 2-line mode display, cursor moves to the 2nd line after 40th digit of 1st
line. Note that display shift is performed simultaneously in all the line. When displayed data is shifted
repeatedly, each line shifted individually. When display shift is performed, the contents of address counter are
not changed.
S/C
L
R/L
L
Description
AC Value
AC=AC-1
AC=AC+1
AC=AC
Shift cursor to the left
L
H
Shift cursor to the right
H
L
Shift display to the left. Cursor follows the display shift
H
H
Shift display to the right. Cursor follows the display shift AC=AC
l
Function Set
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
Code
0
0
0
0
1
DL
N
F
x
x
V2.2
19/42
2006/05/11
SITRONIX [ SITRONIX TECHNOLOGY CO., LTD. ]
