HD44780 Hitachi Semiconductor (acquired by Renesas), HD44780 Datasheet - Page 41

• Manufacturer Part Number: HD44780
• Description: Dot Matrix Liquid Crystal Display Controller/driver
• Manufacturer: Hitachi Semiconductor (acquired by Renesas)

Table 11
Step
No.
11
12
13
14
15
16
17
18
19
20
21
RS
Write data to CGRAM/DDRAM
1
Write data to CGRAM/DDRAM
1
Cursor or display shift
0
Cursor or display shift
0
Write data to CGRAM/DDRAM
1
Cursor or display shift
0
Cursor or display shift
0
Write data to CGRAM/DDRAM
1
Return home
0
R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 Display
0
0
0
0
0
0
0
0
0
8-Bit Operation, 8-Digit 1-Line Display Example with Internal Reset (cont)
0
0
0
0
0
0
0
0
0
1
1
0
0
1
0
0
1
0
Instruction
0
0
0
0
0
0
0
0
0
·
·
·
·
·
·
·
·
·
·
0
0
1
1
0
1
1
0
0
1
1
0
0
0
1
0
1
0
1
1
0
0
0
1
1
1
0
0
1
*
*
1
*
*
0
1
1
1
*
*
1
*
*
1
0
TACHI M_
MICROKO_
MICROKO _
MICROKO
ICROCO _
MICROCO _
MICROCO_
ICROCOM_
HITACHI
_
_
·
·
·
·
·
·
·
·
·
·
Operation
Writes M.
Writes O.
Shifts only the cursor position
to the left.
Shifts only the cursor position
to the left.
Writes C over K.
The display moves to the left.
Shifts the display and cursor
position to the right.
Shifts the display and cursor
position to the right.
Writes M.
Returns both display and
cursor to the original position
(address 0).
HD44780U
41