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. 14, 2020
Filed:
Sep. 27, 2016
Applicant:
Atmel Corporation, San Jose, CA (US);
Inventor:
Frode Milch Pedersen, Trondheim, NO;
Assignee:
Atmel Corporation, San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 13/24 (2006.01); G06F 13/16 (2006.01); G06F 9/52 (2006.01); G06F 15/173 (2006.01);
U.S. Cl.
CPC ...
G06F 13/1663 (2013.01); G06F 9/52 (2013.01); G06F 13/24 (2013.01); G06F 15/17325 (2013.01); Y02D 10/14 (2018.01);
Abstract
An inter-process signaling system and method support implementation of semaphores or messaging signals between masters in a multi-master system, or between tasks in a single master system. A semaphore flag register contains one or more bits indicating whether resources are free or busy. The register is aliased to allow atomic read-and-clear of individual bits in the register. Masters poll the status of a resource until the resource reads as free. Alternatively, interrupts or events per master can be implemented to indicate availability of a resource.