HD44780 Hitachi Semiconductor (acquired by Renesas), HD44780 Datasheet - Page 44

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

HD44780U
Table 13
Step
No.
9
10
11
12
13
14
15
44
RS
Write data to CGRAM/DDRAM
1
Write data to CGRAM/DDRAM
1
Entry mode set
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
8-Bit Operation, 8-Digit 2-Line Display Example with Internal Reset (cont)
0
0
0
0
0
1
1
0
1
0
Instruction
0
0
0
0
0
·
·
·
·
·
·
·
·
·
·
0
0
0
0
0
1
1
0
1
0
1
1
1
1
0
0
1
1
0
1
1
1
1
1
0
MICROCO_
MICROCO_
ICROCOM_
MICROCOM
ITACHI
HITACHI
HITACHI
HITACHI
HITACHI
M_
_
·
·
·
·
·
·
·
·
·
·
Operation
Writes M.
Writes O.
Sets mode to shift display at
the time of write.
Writes M. Display is shifted to
the left. The first and second
lines both shift at the same
time.
Returns both display and
cursor to the original position
(address 0).