 | Digital Teaching Aid (DED Philippinen, 86 p.) |
 |  | Coding - Lesson 6 |
| | Lesson Plan |
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Code converter
Code converter are logical networks which convert codes into another.
Fig. 6-7: TTL device, BCD ® excess-3 converter
Fig. 6-8: Convertion table, dec ® BCD® excess-3
|
Dec |
BCD |
Excess - 3 | ||||||
| |
a |
b |
e |
d |
a1 |
b1 |
c1 |
d1 |
|
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
1 |
|
1 |
0 |
0 |
0 |
1 |
0 |
1 |
0 |
0 |
|
2 |
0 |
0 |
1 |
0 |
0 |
1 |
0 |
1 |
|
3 |
0 |
0 |
1 |
1 |
0 |
1 |
1 |
0 |
|
4 |
0 |
1 |
0 |
0 |
0 |
1 |
1 |
1 |
|
5 |
0 |
1 |
0 |
1 |
1 |
0 |
0 |
0 |
|
6 |
0 |
1 |
1 |
0 |
1 |
0 |
0 |
1 |
|
7 |
0 |
1 |
1 |
1 |
1 |
0 |
1 |
0 |
|
8 |
1 |
0 |
0 |
0 |
1 |
0 |
1 |
1 |
|
9 |
1 |
0 |
0 |
1 |
1 |
1 |
0 |
0 |
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