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:
Mar. 16, 2010
Filed:
May. 30, 2008
Christopher Michael Abernathy, Austin, TX (US);
Jonathan James Dement, Austin, TX (US);
Ronald Hall, Cedar Park, TX (US);
Robert Alan Philhower, Valley Cottage, NY (US);
David Shippy, Austin, TX (US);
Christopher Michael Abernathy, Austin, TX (US);
Jonathan James DeMent, Austin, TX (US);
Ronald Hall, Cedar Park, TX (US);
Robert Alan Philhower, Valley Cottage, NY (US);
David Shippy, Austin, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Dynamic power management in a processor design is presented. A pipeline stage's stall detection logic detects a stall condition, and sends a signal to idle detection logic to gate off the pipeline's register clocks. The stall detection logic also monitors a downstream pipeline stage's stall condition, and instructs the idle detection logic to gate off the pipeline stage's registers when the downstream pipeline stage is in a stall condition as well. In addition, when the pipeline stage's stall detection logic detects a stall condition, either from the downstream pipeline stage or from its own pipeline units, the pipeline stage's stall detection logic informs an upstream pipeline stage to gate off its clocks and thus, conserve more power.