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6.2.4 Display ON/OFF
DB7
DB6
DB5
DB4
DB3 DB2 DB1 DB0
0 0 0 0 1 D C
RS=0, R/W=0 08H to 0FH
This instruction controls various features of the display.
D=1: Display on ,
D=0: Display off.
C=1: Cursor on C=0: Cursor off.
B=1: Blinking on B=0: blinking off.
(Blinking is achieved by alternating between a normal and all on display of a character.
The cursor' blink with a frequency of about 1.0 Hz and DUTY 50%)
6.2.5 Cursor/Display Shift
DB7
DB6
DB5 DB4
DB3
DB2 DB1 DB0
0 0 0 1 S/C R/L 0 0
RS=0, R/W=0 10H to 1FH
: Don't care
This instruction shifts the display and/or moves the cursor on character to the left or right, without reading
or writing DD-RAM.
The S/C bit selects movement of the cursor or movement of both the cursor and the display.
S/C=1: Shift both cursor and display
S/C=0: Shift cursor only
The R/L bit selects left ward or right ward movement of the display and/or cursor.
R/L=1: Shift one character right
R/L=0: Shift one character left
Table-15 Cursor/Display shift
S/C R/L Cursor shift Display shift
0 0 Move one character to the left No shift
0 1 Move one character to the right No shift
1 0 Shift one character to the left with display Shift one character to the left
1 1 Shift one character to the right with display Shift one character to the right
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