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:
Dec. 22, 2020
Filed:
Aug. 01, 2018
Microchip Technology Incorporated, Chandler, AZ (US);
Laurent Le Goffic, Nantes, FR;
Sylvain Garnier, Nantes, FR;
MICROCHIP TECHNOLOGY INCORPORATED, Chandler, AZ (US);
Abstract
A microcontroller configured to provide secure integrity checking of code or data stored in the microcontroller is provided. The microcontroller may include a processor, memory devices defining a microcontroller memory space, a security attribution unit defining secure memory region(s) and non-secure memory region(s) in the memory space, integrity check tables indicating storage locations of various code within the microcontroller memory space, and an integrity checking unit. The integrity checking unit may be configured to receive an integrity check request for checking the integrity of a first piece of code stored in the microcontroller memory space, access a first integrity check table that indicates a storage location of the first piece of code, determine whether the first integrity check table and first piece of code are stored in the same memory region; and determine whether to perform the requested integrity check based at least on this determination.