Generating a local clock domain using dynamic controls

US8001411B2 · kind B2 · utility

Assignee

• International Business Machines Corporation · US

Inventors

• Sean Michael Carey · Hyde Park, US
• William V. Huott · Holmes, US
• Christian Jacobi · West Park, US
• Guenter Mayer · Schenefeld, DE
• Timothy G. McNamara · Fishkill, US
• Chung-Lung K. Shum · Wappingers Falls, US
• Hans-Werner Tast · Holzgerlingen, DE
• Michael H. Wood · Detroit, US

Key dates

• Filing date: Sep 24, 2007
• Grant date: Aug 16, 2011
• Expiry date: Jun 15, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02D10/00
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

A method for generating a local clock domain within an operation includes steps of: receiving a clock frequency measurement for a slow portion of logic within the operation; generating a local signal to indicate commencement of the operation and to function as a clock gating signal; latching the clock gating signal to a selected cycle; generating clock domain controls based on the clock gating signal such that the operation times itscommencement on the selected cycle; and propagating the clock gating signal in ungated latches for a number of cycles, such that a second operation is restricted from being launched until the operation completes.