Data alignment method and apparatus

Details Data alignment method and apparatus Data alignment method and apparatus

H - Electricity

04

L

H04L 7/00 (2006.01) H04L 7/033 (2006.01) H04L 7/04 (2006.01)

Patent

CA 2017394

A method and apparatus are provided for receiving parallel digital data signals and an aligned frame pulse. The frame pulse occurs at a regular interval which is a multiple of the data clock period. A multiple clock sampling scheme includes sampling the frame pulse using a plurality of phase-shifted clock signals, selecting several clock signals which are centered on the frame pulse and therefore the data. Then, sampling the data using the selected clocks, taking a majority value of the multiple samples and aligning the sampled data with a locally generated frame pulse using an elastic store.

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