Integrated circuit with timing adjustment mechanism and method

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United States Patent

6950956

Link to this page

http://www.wikipatents.com/6950956.html

Inventor(s)

Zerbe; Jared LeVan (Woodside, CA), Donnelly; Kevin S. (Los Altos, CA), Sidiropoulos; Stefanos (Palo Alto, CA), Stark; Donald C. (Los Altos, CA), Horowitz; Mark A. (Menlo Park, CA), Yu; Leung (Los Altos, CA), Vu; Roxanne (San Jose, CA), Kim; Jun (Redwood City, CA), Garlepp; Bruno W. (Sunnyvale, CA), Ho; Tsyr-Chyang (San Jose, CA), Lau; Benedict Chung-Kwong (San Jose, CA)

Abstract

An integrated circuit device includes a receiver, a register and a clock circuit. The receiver samples data from an external signal line in response to an internal clock signal. The register stores a value that represents a timing offset to adjust the time at which the data is sampled. The clock circuit generates the internal clock signal such that the internal clock signal maintains a controlled timing relationship with respect to an external clock signal. The clock circuit includes an interpolator that phase mixes a set of reference clock signals such that the internal clock signal is phase offset in accordance with the value.

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