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. 01, 2011
Filed:
Jan. 15, 2009
Bryan N. Cardwell, Tucson, AZ (US);
Michael L. Harper, Tucson, AZ (US);
Craig A. Klein, Tucson, AZ (US);
Gregg S. Lucas, Tucson, AZ (US);
Mary Anne J. Marquez, Tucson, AZ (US);
Robert E. Medlin, Tucson, TX (US);
Bryan N. Cardwell, Tucson, AZ (US);
Michael L. Harper, Tucson, AZ (US);
Craig A. Klein, Tucson, AZ (US);
Gregg S. Lucas, Tucson, AZ (US);
Mary Anne J. Marquez, Tucson, AZ (US);
Robert E. Medlin, Tucson, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method for automatically detecting and correcting one or more hang conditions within one or more of a master device and target device of a serial bus interface when one or more signals are held in an invalid state. A hang timer monitors one or more operations of the serial bus when the serial bus is participating in a serial bus transfer. If the transfer does not end before the bus timeout value has been exceeded, the hang timer will issue a reset to the state machine forcing the state machine back to an idle state. The hang timer will also disable the serial bus drivers of the state machine, whereby the hang condition is corrected.