Rainbow Electronics HD44780 User Manual

Page 28

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background image

HD44780U

28

Code

Note: Don’t care.

*

Code

Code

Code

RS

0

R/W

0

DB7

0

DB6

0

DB5

0

DB4

0

DB3

0

DB2

0

DB1

0

DB0

1

RS

0

R/W

0

DB7

0

DB6

0

DB5

0

DB4

0

DB3

0

DB2

0

DB1

1

DB0

*

RS

0

R/W

0

DB7

0

DB6

0

DB5

0

DB4

0

DB3

0

DB2

1

DB1

I/D

DB0

S

RS

0

R/W

0

DB7

0

DB6

0

DB5

0

DB4

0

DB3

1

DB2

D

DB1

C

DB0

B

Return
home

Clear
display

Entry
mode set

Display
on/off control

RS

0

R/W

0

DB7

0

DB6

0

DB5

0

DB4

1

DB3

S/C

Code

DB2

R/L

DB1 DB0

Code

Code

Higher
order bit

Lower

order bit

*

Cursor or
display shift

Function set

Set CGRAM
address

*

RS

0

R/W

0

DB7

0

DB6

0

DB5

1

DB4

DL

DB3

N

DB2

F

DB1 DB0

*

*

RS

0

R/W

0

DB7

0

DB6

1

DB5

A

DB4

A

DB3

A

DB2

A

DB1 DB0

A

A

Note: Don’t care.

*

Figure 11 Instruction (1)

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