The timing of a normal inbound frame transfer is shown in the following figure. As in the transmit case, the frame is delimited by a Start character (S) and by a Terminate character (T). The Start character in this implementation can occur only on lane 0. The Terminate character, T, can occur in any lane.
The following figure shows an inbound frame of data propagating an error. In this instance, the error is propagated in lanes 1 to 3, shown by the letter E.