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:
Apr. 16, 2002
Filed:
Oct. 30, 1998
John W Bockhaus, Fort Collins, CO (US);
Jay Fleischman, Fort Collins, CO (US);
Hewlett-Packard Company, Palo Alto, CA (US);
Abstract
A method and structure facilitates the debugging and test coverage capabilities of a microprocessor. A microprocessor having memory arrays, a debug block, and one or more built-in-self-test (BIST) engines is disclosed. The debug block is capable of driving control information out onto a state machine output bus in response to an event and the control information can be selectively used to control signature analysis or recording elements of the microprcessor, such as multiple-input-shift-registers and first-in-first-out devices, that facilitate in the monitoring and debugging of the microprocessor. The signature and recording elements may or may not be contained within the one or more BIST engines and may or may not be used in conjunction with the memory arrays or BIST engine(s) of the microprocessor.