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ST7066
V1.1
1999/12/29
16
!"
Display ON/OFF
Control display/cursor/blink ON/OFF 1 bit register.
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
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
R/L
Description
AC Value
L
L
Shift cursor to the left
AC=AC-1
L
H
Shift cursor to the right
AC=AC+1
H
L
Shift display to the left. Cursor follows the display shift
AC=AC
H
H
Shift display to the right. Cursor follows the display shift AC=AC
!"
Function Set
Control display/cursor/blink ON/OFF 1 bit register.
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
DL
1
S/C
N
D
R/L
F
Code
Code
Code
RS
RS
RS
RW
RW
RW
DB7
DB7
DB7
DB6
DB6
DB6
DB5
DB5
DB5
DB4
DB4
DB4
DB1
DB1
DB1
DB2
DB2
DB2
DB3
DB3
DB3
C
x
x
B
x
x
DB0
DB0
DB0