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:
Jan. 07, 2003
Filed:
Mar. 19, 1999
Applicant:
Inventors:
Toru Okabayashi, Kawasaki, JP;
Yasushi Nagano, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/134 ;
U.S. Cl.
CPC ...
G06F 1/134 ;
Abstract
A processing unit has an operation unit and a cache memory, and further has a debug support unit and a non-cache control circuit. The debug support unit outputs a debug mode signal when an address of a program being currently executed and an optional address set for debugging coincide with each other, and the non-cache control circuit controls the operation of the cache memory via the debug mode signal and outputs the debug mode signal externally of the processing unit.