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:
Aug. 26, 2014
Filed:
Mar. 01, 2011
Applicants:
Wei Han, Beaverton, OR (US);
Zheng Chen, Upper Macungie, PA (US);
Warren Juenemann, Cornelius, OR (US);
Inventors:
Wei Han, Beaverton, OR (US);
Zheng Chen, Upper Macungie, PA (US);
Warren Juenemann, Cornelius, OR (US);
Assignee:
Lattice Semiconductor Corporation, Hillsboro, OR (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 19/177 (2006.01);
U.S. Cl.
CPC ...
Abstract
In one embodiment, a programmable logic device includes a memory and an input/output (I/O) interface adapted to enter a variable response mode responsive to an assertion of a control signal. The I/O interface is operable in the variable response mode to respond to a read command from an external device by retrieving data from the memory and to shift dummy data to the external device until an internal data ready signal is asserted.