DQS strobe centering (data eye training) method

A method for calibrating a data valid window including the steps of: (A) setting a base delay of one or more datapaths to a predetermined value, (B) determining an optimum offset delay value for each of the one or more datapaths based upon actual memory accesses and (C) delaying a read data strobe s...

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Bibliographische Detailangaben
Hauptverfasser: BUTT DERRICK SAI-TANG, SETO HUI-YIN
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A method for calibrating a data valid window including the steps of: (A) setting a base delay of one or more datapaths to a predetermined value, (B) determining an optimum offset delay value for each of the one or more datapaths based upon actual memory accesses and (C) delaying a read data strobe signal based upon the base delay and the optimum offset delay value for each of the one or more datapaths.