The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 21, 2017
Filed:
Dec. 19, 2014
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
Seng Oon Toh, Cambridge, GB;
Edward J. McLellan, Holliston, MA (US);
Stephen V. Kosonocky, Fort Collins, CO (US);
Michael Leonard Golden, Mountain View, CA (US);
Samuel D. Naffziger, Fort Collins, CO (US);
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
Abstract
A processor employs a set of replica paths at a processor to determine an operating frequency and voltage for the processor. The replica paths each represent one or more circuit paths at a functional module of the processor. The delays at the replica paths are normalized to increase the likelihood that the replica paths accurately represent the behavior of the circuit paths of the functional module. After normalization, a distribution of delay values is generated by varying, at each replica path, the delay at an output node of the replica path until a mismatch is detected between a signal at the output node of the replica path and the delayed representation of the signal. The resulting distribution of delay values can then be adjusted based on variations in reference voltages at the replica paths to account for potential distribution errors resulting from the reference voltage variations.