Invention Grant
US08526249B1 Methods and systems for detecting and correcting timing signal drift in memory systems 有权
用于检测和校正存储器系统中定时信号漂移的方法和系统

  • Patent Title: Methods and systems for detecting and correcting timing signal drift in memory systems
  • Patent Title (中): 用于检测和校正存储器系统中定时信号漂移的方法和系统
  • Application No.: US13196116
    Application Date: 2011-08-02
  • Publication No.: US08526249B1
    Publication Date: 2013-09-03
  • Inventor: Ross Swanson
  • Applicant: Ross Swanson
  • Applicant Address: BM Hamilton
  • Assignee: Marvell International Ltd.
  • Current Assignee: Marvell International Ltd.
  • Current Assignee Address: BM Hamilton
  • Main IPC: G11C7/00
  • IPC: G11C7/00 G11C8/00
Methods and systems for detecting and correcting timing signal drift in memory systems
Abstract:
Methods and systems for detection and correction of timing signal drift in memory systems are provided. A start time and an end time of a first time interval is determined with control circuitry such that a last falling edge in a first of a plurality of data strobe sequences received from the memory occurs outside of the first time interval. A start time and an end time of a close-enable time interval is adjusted based at least in part on determining whether a second of the plurality of data strobe sequences occurs within the first time interval. Sampling of data received from the memory is disabled in response to determining that the last falling edge in the second received data strobe sequence occurs within the close-enable time interval.
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