Invention Grant
US09330034B2 Levelization of memory interface for communicating with multiple memory devices 有权
用于与多个存储设备通信的存储器接口的级别化

  • Patent Title: Levelization of memory interface for communicating with multiple memory devices
  • Patent Title (中): 用于与多个存储设备通信的存储器接口的级别化
  • Application No.: US13582043
    Application Date: 2011-03-30
  • Publication No.: US09330034B2
    Publication Date: 2016-05-03
  • Inventor: Yohan Usthavia FransSimon Li
  • Applicant: Yohan Usthavia FransSimon Li
  • Applicant Address: US CA Sunnyvale
  • Assignee: Rambus Inc.
  • Current Assignee: Rambus Inc.
  • Current Assignee Address: US CA Sunnyvale
  • Agency: Fenwick & West LLP
  • International Application: PCT/US2011/030574 WO 20110330
  • International Announcement: WO2011/130007 WO 20111020
  • Main IPC: G06F13/00
  • IPC: G06F13/00 G06F13/16
Levelization of memory interface for communicating with multiple memory devices
Abstract:
In a memory system in which a system clock signal is forwarded from the memory controller to multiple memory devices, the phase of the system clock signal forwarded to the slower memory device is advanced relative to the system clock signal forwarded to the faster memory device by a phase corresponding to the skew on the data links corresponding to the memory devices. This causes the state machine of the slower memory device to change states and advance earlier than the state machine in the faster memory device, and as a result, the data read from both the slower memory device and the faster memory device are unskewed on the data links between the memory controller and the memory devices.
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