4x3 NUMERIC KEYPAD

C3

C2

C1

C0

R3

R2

R1

R0

KEYPRESSED

SCAN CODE

ASCII

1

1

1

0

1

1

1

0

1

EEH

31H

1

1

1

0

1

1

0

1

4

EDH

34H

1

1

1

0

1

0

1

1

7

EBH

37H

1

1

1

0

0

1

1

1

*

E7H

2AH

1

1

0

1

1

1

1

0

2

DEH

32H

1

1

0

1

1

1

0

1

5

DDH

35H

1

1

0

1

1

0

1

1

8

DBH

38H

1

1

0

1

0

1

1

1

0

D7H

30H

1

0

1

1

1

1

1

0

3

BEH

33H

1

0

1

1

1

1

0

1

6

BDH

36H

1

0

1

1

1

0

1

1

9

BBH

39H

1

0

1

1

0

1

1

1

#

B7H

23H

4x4 NUMERIC KEYPAD

C3

C2

C1

C0

R3

R2

R1

R0

KEYPRESSED

SCAN CODE

ASCII

1

1

1

0

1

1

1

0

0

EEH

30H

1

1

1

0

1

1

0

1

4

EDH

34H

1

1

1

0

1

0

1

1

8

EBH

38H

1

1

1

0

0

1

1

1

C

E7H

43H

1

1

0

1

1

1

1

0

1

DEH

31H

1

1

0

1

1

1

0

1

5

DDH

35H

1

1

0

1

1

0

1

1

9

DBH

39H

1

1

0

1

0

1

1

1

D

D7H

44H

1

0

1

1

1

1

1

0

2

BEH

32H

1

0

1

1

1

1

0

1

6

BDH

36H

1

0

1

1

1

0

1

1

A

BBH

41H

1

0

1

1

0

1

1

1

E

B7H

45H

0

1

1

1

1

1

1

0

3

7EH

33H

0

1

1

1

1

1

0

1

7

7DH

37H

0

1

1

1

1

0

1

1

B

7BH

42H

0

1

1

1

0

1

1

1

F

77H

46H

 

4x4 NUMERIC KEYPAD

C3

C2

C1

C0

R3

R2

R1

R0

KEYPRESSED

SCAN CODE

ASCII

1

1

1

0

1

1

1

0

1

EEH

30H

1

1

1

0

1

1

0

1

4

EDH

34H

1

1

1

0

1

0

1

1

7

EBH

38H

1

1

1

0

0

1

1

1

Back Space

E7H

43H

1

1

0

1

1

1

1

0

2

DEH

31H

1

1

0

1

1

1

0

1

5

DDH

35H

1

1

0

1

1

0

1

1

8

DBH

39H

1

1

0

1

0

1

1

1

0

D7H

44H

1

0

1

1

1

1

1

0

3

BEH

32H

1

0

1

1

1

1

0

1

6

BDH

36H

1

0

1

1

1

0

1

1

9

BBH

41H

1

0

1

1

0

1

1

1

Dot

B7H

45H

0

1

1

1

1

1

1

0

Up-Arrow

7EH

33H

0

1

1

1

1

1

0

1

Down-Arrow

7DH

37H

0

1

1

1

1

0

1

1

MEM

7BH

42H

0

1

1

1

0

1

1

1

SEND

77H

46H

C: Coulomb;

R: Row;