=> N = 16 bits
       
                 valid bits: 2, 4, 8, 16, 32, 64, 128, 256, 512
       
 (QRY)  set N
 (DIR)  reset
 (DIR)  << 
 (TXT)  ? 
        _________________Num  Values______________________________________
       
                           0  0000
                           1  0001
                           2  0010
                           3  0011
                           4  0100
                           5  0101
                           6  0110
                           7  0111
                           8  1000
                           9  1001
                          10  1010
                          11  1011
                          12  1100
                          13  1101
                          14  1110
                          15  1111
       ___________________________________________________________________
       
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