SC9244

HANGZHOU SILAN MICROELECTRONICS CO.,LTD

REV:1.0

2006.04.24

Http: www.silan.com.cn

Page 5 of 11

4. ACHIEVEMENT SELECTION CIRCUIT

As the following picture, S1, S2, S3, and S4 are the selection bits of system code; S5, S6, S7, and S8 are

selecting bits of data code.

5. SYSTEM CODE TABLE

Priority

S4

S3

S2

S1

System code

1

0

0

0

0

0EH

2

0

0

0

1

1EH

3

0

0

1

0

2EH

4

0

1

0

0

3EH

5

1

0

0

0

17H

6

0

0

1

1

18H

7

0

1

0

1

19H

8

0

1

1

0

1AH

9

1

0

0

1

1BH

10

1

0

1

0

1CH

11

1

1

0

0

1DH

12

0

1

1

1

1FH

13

1

0

1

1

20H

14

1

1

0

1

21H

15

1

1

1

0

22H

16

1

1

1

1

23H

Note: Si=1 denotes press the key, Si=0 denotes open.