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:
Jun. 30, 2009
Filed:
Dec. 12, 2005
Merril R. Newman, Schaumburg, IL (US);
Osvaldo Franco, Apex, NC (US);
Robert W. Milhaupt, Bloomingdale, IL (US);
Merril R. Newman, Schaumburg, IL (US);
Osvaldo Franco, Apex, NC (US);
Robert W. Milhaupt, Bloomingdale, IL (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A system comprises a multi-core silicon-on-chip (SOC) device. The SOC device includes a core module, a test data shift path, a core power control module, and an emulation control module. The core module includes a TAP controller and a plurality of data registers. The test data shift path is operable to transport data shifted out of one or more of the data registers. The core power control module is operable to control the power status of the core module. The emulation control module includes a plurality of alternative registers operable to shift data into the test data shift path in the event that the core module is powered down by the core power control module such that the shift path continues uninterrupted. The emulation control module remains powered on regardless of the power status of the core module.