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:
Jul. 08, 2008
Filed:
Apr. 07, 2005
Applicants:
Howard Tang, San Jose, CA (US);
Satwant Singh, Fremont, CA (US);
San-ta Kow, San Jose, CA (US);
Inventors:
Assignee:
Lattice Semiconductor Corporation, Hillsboro, OR (US);
Primary Examiner:
Int. Cl.
CPC ...
H03K 19/00 (2006.01); G01R 31/28 (2006.01);
U.S. Cl.
CPC ...
Abstract
In one embodiment of the invention, a programmable logic device such as an FPGA includes a programmable fabric; a JTAG interface operable to receive configuration data for programming the fabric; a SPI interface operable to receive and transmit configuration data for programming the fabric; and circuitry coupled to the JTAG and SPI interfaces. The circuitry is operable, without being configured, to transfer configuration data received at the JTAG interface to the SPI interface for transmission to an external device having a SPI interface, such as a serial flash memory.