0 0 Valid
1 1 Invalid
2 2 RESERVED
3 3 RESERVED
4 4 RESERVED
5 5 RESERVED
6 6 RESERVED
7 7 RESERVED
8 8 RESERVED
9 9 RESERVED
10 10 RESERVED
11 11 RESERVED
12 12 RESERVED
13 13 RESERVED
14 14 RESERVED
15 15 MISSING
