Method and apparatus for recovery of time skewed data on a parallel bus

Abstract From the Canadian patent

An apparatus and method for receiving time skewed data from a parallel data bus. A, data transfer on the parallel data bus is preceded by a start-of-cell delimiter consisting of a, predetermined sequence of pulses on each of the data signals. The data is received from the bus, by receive logic employing a local clock. Sampling logic is used to sample each of the data, signals received from the bus at a rate which is higher than the local clock rate. Sample registers, store a plurality of samples of corresponding data signals the number of , samples stored being, large enough to store at least some of the pulses constituting the start-of cell delimiter. Start-of-, cell detect and …