Velleman projects K6501 Assembly instructions - Manual (Page 10)

10
Code setting
See table to set the first digit (CODE1 or decades) and the second digit (CODE2 or units).
25. Setting the code
D C B A
CODE1
SW2 0
1
2
3
4
5
6
7
8
9
SW2
CODE2
B A C D
9
8
7
6
5
4
3
2
1
0