Hi, Walter; Can you clarify the functionality of the new parameter Rx_Clock_Recovery_Mean? My understanding is that If its Usage is In, signal is sampled at 0.5*bit_time after a clock time as stated on page 29 in the BIRD. If its Usage is Info or Out, signal is sampled at (0.5*bit_time + Rx_Clock_Recovery_Mean) after a clock time. Thanks, Fangyi