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:
May. 16, 2006
Filed:
Apr. 11, 2002
Structure and method for verifying data in a non-jtag device from a jtag device with microcontroller
Applicants:
Arthur H. Khu, San Mateo, CA (US);
Farshid Shokouhi, San Jose, CA (US);
Conrad A. Theron, San Jose, CA (US);
Inventors:
Arthur H. Khu, San Mateo, CA (US);
Farshid Shokouhi, San Jose, CA (US);
Conrad A. Theron, San Jose, CA (US);
Assignee:
Xilinx, Inc., San Jose, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/28 (2006.01);
U.S. Cl.
CPC ...
Abstract
According to the invention, a JTAG-compliant chip having a controller that receives data provided on the TDI input pin and forms parallel address and data instructions and passes the data through IO pins to the non-JTAG chip is able to verify whether the data was correctly received by the non-JTAG chip by reading back the data and comparing to the original data. A status bit or bits are shifted out on a TDO pin and used to determine what data will be shifted in next.