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:
Oct. 02, 2007
Filed:
Jan. 09, 2003
William C. Moyer, Dripping Springs, TX (US);
Michael D. Fitzsimmons, Austin, TX (US);
Brian M. Millar, Austin, TX (US);
John J. Vaglica, Austin, TX (US);
William C. Moyer, Dripping Springs, TX (US);
Michael D. Fitzsimmons, Austin, TX (US);
Brian M. Millar, Austin, TX (US);
John J. Vaglica, Austin, TX (US);
Freescale Semiconductor, Inc., Austin, TX (US);
Abstract
In one embodiment, a data processing system () has a processor () coupled to a bus, where the data processing system () includes access error detection circuitry () and access error response circuitry (), each coupled to the bus (). The access error detection circuitry detects an access error in the data processing system. The access error response circuitry initiates replacement of an existing value on the bus with a predetermined value when the access error has been detected, and continues to replace the existing value on the bus with the predetermined value when the access error has been detected and a persistent mode indicator has been asserted. The predetermined value may correspond to a predetermined instruction value () or a predetermined data value (). In one embodiment, different values for the predetermined value may be used depending on the current operating mode of the data processing system.