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. 20, 2010
Filed:
Mar. 29, 2007
James Grealish, Beaverton, OR (US);
Dave F. Dubberke, Aloha, OR (US);
Milo J. Juenemann, Hillsboro, OR (US);
Christopher J. Koza, Tempe, AZ (US);
Eric T. Fought, Chandler, AZ (US);
James Grealish, Beaverton, OR (US);
Dave F. Dubberke, Aloha, OR (US);
Milo J. Juenemann, Hillsboro, OR (US);
Christopher J. Koza, Tempe, AZ (US);
Eric T. Fought, Chandler, AZ (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
A boundary scan technique to generate toggling waveform such as a square wave signal to perform structural testing is disclosed. An instr_extesttoggle command is provided that enables IEEE 1149.1 boundary scan cell to selectively generate the toggling signal on the pre-specified output pads of the integrated circuit. The frequency of the toggling signal may be controlled by the JTAG clock signal and the frequency of the toggling signal may be independent of the length of the boundary scan chain. Such an approach circumvents provisioning test points on the interconnects of a printed circuit board.