This tests all possible combinations of clock-correction in all decoding schemes (Table: Combinations of Clock-correction). Table C-11: Combinations of Clock-correction Decoding type CB Sequence No Sequence Length CC Sequence Periodicity 10B8B decoding 1 or 2 1 or 2 or 4 User defined User defined None 1 or 2 1 or 2 or 4 User defined User defined None_MSB_first 1 or 2 1 or 2 or 4 User defined User defined 66B64B NA NA NA NA 67B64B NA NA NA NA