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Automatic testing of microprocessor bus integrity
   
Document Number
US Patent 7472328
Issued Date
December 30, 2008
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Abstract
Integrated circuit bus integrity may be verified without specialized test equipment. In a diagnostic mode, the integrated circuit may output a series of predetermined activation patterns onto the data bus to verify integrity of the data bus. Further bus verification may be provided by an address capture mode where address bus contents are reflected onto the data bus. A microprocessor may control diagnostic mode operation.
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Number of Claims:
20
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Owner
Cisco Technology, Inc. (San Jose, CA)
Published
December 30, 2008
Application Number
11/437,370
Filed
May 19, 2006
US Classification
714/738   714/E11.169
Int'l Classification
G06F   11/00   (20060101)  
Assistant Examiner
Attorney/Law Firm
Parent Case
RELATED APPLICATION This patent application is a continuation of U.S. patent application Ser. No. 10/166,207, filed Jun. 10, 2002, issued as U.S. Pat. No. 7,076,711, which is incorporated herein by reference in its entirety.
USPTO Field of Search
714/738   714/724   714/718   714/719   714/56   714/789   714/733   714/736   714/30   714/28   714/43  
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