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. 28, 2009
Filed:
Oct. 15, 2003
Dinesh Jayabharathi, Orange, CA (US);
William W. Dennin, Mission Viejo, CA (US);
Dinesh Jayabharathi, Orange, CA (US);
William W. Dennin, Mission Viejo, CA (US);
Marvell International Ltd., Hamilton, BM;
Abstract
A system and method for dynamically writing to and reading from an internal register space of a chip using a TAP controller without interfering with the normal operation of the chip is provided. Data that is to be written is loaded into a data register in the TAP controller before being written in the internal register space and the write instructions are loaded into an instruction register of the TAP controller. The address of the internal register space from where data is to be read is also loaded to the data register. Data is read and/or written from the internal register space after the TAP controller gets access to the internal register space via arbitration.