DOCUMENT NO.
REV .NO PAGE
STANDARD
NAME
SPECIFICATION FOR APPROVAL
00 13/16
The cursor will already be shifted in the direction selected by I/D during reads of DD-RAM,
Irrespective of the value of S. Similarly reading and writing the CG-RAM always shift the cursor
.
Also both lines are shifted simultaneously.
Table_14 Cursor move and Display shift by the “Entry Mode Set”
I/D S After writing DD-RAM data After Reading DD-RAM data
0 0 The cursor moves one character to the left. The cursor moves one character to the left.
1 0 The cursor moves one character to the right. The cursor moves one character to the right.
0 1 The display shifts one character to the right without cursor’s move.
The cursor moves one character to the left.
1 1 The display shifts one character to the left without cursor’s move.
The cursor moves one character to the right.
6.2.4 Display ON/OFF
DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 0 0 1 D C B 08H to 0FH
RS=0, /CS=0, /WR=0 to 1
This instruction controls various features of 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 blinks with a frequency of about 1.0 HZ and DUTY 50%.)
6.2.5 Display Shift
DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 0 1 S/C R/L × × 10H to 1FH
× : Don’t care
RS=0, /CS=0, /WR=0 to 1
This instruction shifts the display moves one character to the left or ri
ght, without writing DD-RAM.
The S/C bit selects movement of the display.
S/C = 1 : Shift display
S/C = 0 : No shift display
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
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