Invention Grant
US07961533B2 Method and apparatus for implementing write levelization in memory subsystems
有权
用于在存储器子系统中实现写级别化的方法和装置
- Patent Title: Method and apparatus for implementing write levelization in memory subsystems
- Patent Title (中): 用于在存储器子系统中实现写级别化的方法和装置
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Application No.: US12127059Application Date: 2008-05-27
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Publication No.: US07961533B2Publication Date: 2011-06-14
- Inventor: Shawn Searles
- Applicant: Shawn Searles
- Applicant Address: US CA Sunnyvale
- Assignee: Advanced Micro Devices, Inc.
- Current Assignee: Advanced Micro Devices, Inc.
- Current Assignee Address: US CA Sunnyvale
- Agency: Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C.
- Agent Erik A. Heter
- Main IPC: G11C7/00
- IPC: G11C7/00

Abstract:
Methods and apparatus for aligning a clock signal and a set of strobe signals are disclosed. In one embodiment, a memory controller includes a clock generator configured to generate the clock signal, and a respective strobe signal generator configured to generate each strobe signal. The memory controller further includes a phase recovery engine configured to receive an error signal from a corresponding memory device, wherein the error signal conveys an error indication indicative of an alignment of the strobe signal relative to the clock signal for each of a plurality of cycles of the strobe signal. The phase recovery engine includes an accumulator configured to maintain an accumulation value that depends upon the error indications for the plurality of cycles of the strobe signal. The strobe signal generator is configured to control a delay associated with generation of the strobe signal depending upon the accumulation value.
Public/Granted literature
- US20090296501A1 Method and Apparatus for Implementing Write Levelization in Memory Subsystems Public/Granted day:2009-12-03
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