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. 17, 2018
Filed:
Sep. 04, 2016
Applicant:
Freescale Semiconductor, Inc., Austin, TX (US);
Inventors:
Zhihong Cheng, Suzhou, CN;
Yin Guo, Tianjin, CN;
Assignee:
NXP USA, INC., Austin, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/10 (2006.01); G06F 3/06 (2006.01); G11C 29/52 (2006.01); G11C 5/00 (2006.01); G11C 29/04 (2006.01);
U.S. Cl.
CPC ...
G06F 11/1068 (2013.01); G06F 3/0619 (2013.01); G06F 3/0659 (2013.01); G06F 3/0679 (2013.01); G11C 5/005 (2013.01); G11C 29/52 (2013.01); G11C 2029/0409 (2013.01); G11C 2029/0411 (2013.01);
Abstract
Electromagnetic compatibility (EMC) of a system-on-a-chip (SoC) is enhanced by encoding at least a subset of control signals before the control signals are transmitted over a bus (e.g., a bus internal to a SoC) from a controller to an embedded nonvolatile memory (NVM). The error-detection code used causes an EMC event to introduce errors into the transmitted codewords with relatively high probability. In response to an error being detected in the transmitted codeword, a set of safeguarding operations are performed to prevent the data stored in the NVM from being uncontrollably changed.