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. 23, 2003
Filed:
Feb. 15, 2000
Applicant:
Inventor:
William Lloyd McNeil, Apex, NC (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/00 ;
U.S. Cl.
CPC ...
G06F 1/00 ;
Abstract
Internal clock signals generated on a chip can be viewed externally by multiplexing the clock signals and functional output signals to pin that are used to view or access the functional output signals. JTAG facilities already provided on the chip are used to generate control signals that drive the multiplexers. By so doing no new input or output facilities are required to view the clock signals.