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Table –13 Instruction Set
CODE
Instruction
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
Description
Display clear 0 0 0 0 0 0 0 0 0 1 sets DD-ram address
Clear all display and
0 in address counter
Cursor Home 0 0 0 0 0 0 0 1
Sets DDRAM
address 0 in ACC.
Also returns the
display being shifted
to the original
position DD
RAM contents
remain unchanged
Entry Mode set 0 0 0 0 0 0 0 1 I/D S
Sets the cursor
direction and
specifies display
shift. These
operations are during
WR/RD data
Display ON/OFF
Control
0 0 0 0 0 0 1 D C B ON/OFF(C),cursor
Sets all display
ON/OFF(D),cursor
blink of character
position(B)
Cursor or display
Shift
0 0 0 0 0 1 S/C R/L
Shifts display or
cursor, keeping
DD-RAM contents.
Function set 0 0 0 0 1 IF N
BR1 BR0 lines (N), Set
Sets data length (IF),
number of display
brightness level
(BR1, BR0)
CGRAM address
Setting
0 0 0 1 ACG
Sets the CG-RAM
address.
DDRAM
Address setting
0 0 1 ADD
Sets the DD-RAM
address.
Busy flag &
address setting
0 1 BF ACC
Read busy flag (BF)
and address counter
(ACC).
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