DSP-based diagnostics for monitoring a SerDes link

A method to look at the incoming received data on a SerDes link while running in normal operation without requiring a second receive path or any defined or repeated data patterns to be able to generate statistical eye plots both before and after any internal equalization; generate trajectory eye plo...

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Bibliographische Detailangaben
Hauptverfasser: WARNER WILLIAM DEAN, BOYD GRAEME B, LYE WILLIAM MICHAEL
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A method to look at the incoming received data on a SerDes link while running in normal operation without requiring a second receive path or any defined or repeated data patterns to be able to generate statistical eye plots both before and after any internal equalization; generate trajectory eye plots both before and after any internal equalization; estimate TED characteristics (hence also estimate SJ jitter tolerance of the link); estimate complete Channel Impulse Response (hence also estimate the S-parameters of the complete channel); and estimate the decomposed jitter of the complete channel.