Alignment detection circuitry
AssigneeXilinx, Inc.
InventorMartin RIIS
Life of this patent
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Abstract
Examples herein describe alignment detection circuitry. The alignment detection circuitry includes a buffer, a first set of correlators, and a second set of correlators. The buffer is configured to output a data stream of multiplexed groups of symbols from multiple data lanes. The first set of correlators is configured to search a candidate data lane of the data stream for bits matching bits of a reference alignment marker based on a first search method. The second set of correlators is configured to search the candidate data lane of the data stream for bits matching the bits of the reference alignment marker based on a second search method.
Claims20
Alignment detection circuitry comprising:
- a buffer configured to output a data stream of multiplexed groups of symbols from multiple data lanes;
- a first set of correlators configured to search a candidate data lane of the data stream for bits matching bits of a reference alignment marker based on a first search method;
- and
- a second set of correlators configured to search the candidate data lane of the data stream for bits matching the bits of the reference alignment marker based on a second search method.
Receiver circuitry comprising:
- a first correlator circuit configured to search a candidate data lane of a data stream of multiplexed symbols for bits matching bits of a reference alignment marker based on a first search method;
- a second correlator circuit configured to search the candidate data lane of the data stream of the multiplexed symbols for bits matching the bits of the reference alignment marker based on a second search method;
- and
- a selection circuit configured to select an output from at least one of the first correlator circuit or the second correlator circuit.
A method comprising:
- receiving a data stream of multiplexed groups of symbols from multiple data lanes;
- searching, by a first correlator circuit using a first search algorithm, a candidate data lane of the data stream for bits matching bits of a reference alignment marker;
- and
- searching, by a second correlator circuit using a second search algorithm, the candidate data lane of the data stream for bits matching the bits of the reference alignment marker.
Dependencies are inferred from the claim text.