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. 18, 2015
Filed:
May. 28, 2012
Frank Herman Behrens, Campinas, BR;
Patricia Elaine Domingues, Jaguariuna, BR;
Marcelo Marinho, Campinas, BR;
Jose Arnaldo Mascagni DE Holanda, Araraquara, BR;
Frank Herman Behrens, Campinas, BR;
Patricia Elaine Domingues, Jaguariuna, BR;
Marcelo Marinho, Campinas, BR;
Jose Arnaldo Mascagni de Holanda, Araraquara, BR;
FREESCALE SEMICONDUCTOR, INC., Austin, TX (US);
Abstract
Systems and methods for handling wake-up messages in a Controller Area Network (CAN) are described. In some embodiments, a method may include operating a CAN controller in a selected one of a plurality of operating modes in response to the detection of an event or activity on a CAN bus. The method may also include handling, by the CAN controller, a CAN message using a message handling protocol associated with the selected one of the plurality of operating modes, for example, while a host processor operates in a low power mode. In various implementations, each of the plurality of operating modes may correspond to a different amount of power consumption by the CAN controller. The method may further include transmitting a selected one of a plurality of response messages by the CAN controller over the CAN bus, in some cases, without waking up the processor from the low power mode.