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:
Dec. 17, 2002
Filed:
May. 10, 1999
Applicant:
Inventors:
Ross Bannatyne, Austin, TX (US);
Clay E. Merritt, Noblesville, IN (US);
Nancy L. Thomas, Dripping Springs, TX (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 3/05 ;
U.S. Cl.
CPC ...
H02H 3/05 ;
Abstract
A method and apparatus for confirming the operation of memory ( ) operates during periods when the memory is not operating in a standard execution mode. This strategy allows the memory to be checked real-time without impacting normal bandwidth of an associated CPU ( ). The method and apparatus guarantees deterministic testing by including circuitry and steps which force bus mastership and, therefore, memory access if the memory is busy for too long a period of time.