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.

Date of Patent:
Nov. 25, 2025

Filed:

Feb. 15, 2022
Applicant:

Intel Corporation, Santa Clara, CA (US);

Inventors:

Rajesh Bhaskar, Bangalore, IN;

George Vergis, Portland, OR (US);

Myron Loewen, Berthoud, CO (US);

Matthew A. Schnoor, Hillsboro, OR (US);

Assignee:

Intel Corporation, Santa Clara, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 11/00 (2006.01); G06F 11/07 (2006.01); G06F 11/14 (2006.01); G06F 13/16 (2006.01); G06F 13/42 (2006.01);
U.S. Cl.
CPC ...
G06F 11/0757 (2013.01); G06F 11/0772 (2013.01); G06F 11/141 (2013.01); G06F 13/1668 (2013.01); G06F 13/4291 (2013.01);
Abstract

An apparatus and method to monitor status of a serial data signal on a low speed serial bus is provided. A controller configures a watchdog timer in each target device, sends a heart-beat command to all of the target devices over the low speed serial bus prior to the expiration of the watchdog timer and issues a broadcast read command to any one of the target devices on the low speed serial bus. A response to the broadcast read command confirms that the low speed serial bus is functional. If a response is not received, the low speed serial bus is not functional and the controller initiates a broadcast reset command to initialize all target devices on the low speed serial bus.


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