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:
Mar. 31, 2009
Filed:
Mar. 13, 2006
Jason Redgrave, Mountain View, CA (US);
Brad Hutchings, Fremont, CA (US);
Herman Schmit, Palo Alto, CA (US);
Steven Teig, Menlo Park, CA (US);
Tom Kronmiller, Chapel Hill, NC (US);
Jason Redgrave, Mountain View, CA (US);
Brad Hutchings, Fremont, CA (US);
Herman Schmit, Palo Alto, CA (US);
Steven Teig, Menlo Park, CA (US);
Tom Kronmiller, Chapel Hill, NC (US);
Tabula, Inc., Santa Clara, CA (US);
Abstract
Some embodiments provide a configurable integrated circuit (IC) that has several configurable circuits and several user design state (UDS) circuits. The UDS circuits store user-design state values. The configurable IC also includes a debug network communicatively coupled to the UDS circuits. The debug network is for retrieving the user-design state values of several UDS circuits at various stoppages of the operation of the IC without retrieving configuration data that is used to configure the configurable circuits of the IC. The retrieved user-design state values at each stoppage are used as the checkpointed state of the IC while debugging the IC. In some embodiments, the debug network allows the checkpointing of only certain portions of the configurable IC.