Invention Grant
US08743634B2 Generic low power strobe based system and method for interfacing memory controller and source synchronous memory 有权
基于通用低功率选通的系统和接口存储器控制器和源同步存储器的方法

  • Patent Title: Generic low power strobe based system and method for interfacing memory controller and source synchronous memory
  • Patent Title (中): 基于通用低功率选通的系统和接口存储器控制器和源同步存储器的方法
  • Application No.: US13016071
    Application Date: 2011-01-28
  • Publication No.: US08743634B2
    Publication Date: 2014-06-03
  • Inventor: Terence J. MageeCheng-Gang Kong
  • Applicant: Terence J. MageeCheng-Gang Kong
  • Applicant Address: US CA San Jose
  • Assignee: LSI Corporation
  • Current Assignee: LSI Corporation
  • Current Assignee Address: US CA San Jose
  • Agency: Ortiz & Lopez, PLLC
  • Agent Kermit D. Lopez; Luis M. Ortiz
  • Main IPC: G11C7/10
  • IPC: G11C7/10
Generic low power strobe based system and method for interfacing memory controller and source synchronous memory
Abstract:
A system and method for interfacing a memory controller and a source synchronous memory utilizing a generic low power strobe. A set of double rate (2×) strobes can be generated by gating a continuous double rate clock in order to enable the set of double rate strobes only for duration of a data transfer from controller to the memory. The data and control from a SDR continuous single rate (1×) clock domain with respect to the memory controller can be moved to a set of double rate clock domain by sampling with the set of double rate strobes. The phase of the set of double rate strobes can be shifted in relation to the continuous single rate clock and a phase relationship of the generated synchronous signals to the memory can be dynamically switched by changing the phase of the set of double rate strobes. The set of double rate clock domain enables each bit-slice to be independently programmed to generate an output to the memory at each phase relative to the controller single rate clock.
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