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:
Nov. 19, 2024
Filed:
Dec. 10, 2022
Gigadevice Semiconductor (Xian) Inc., Xi'an, CN;
Ze He, Xi'an, CN;
GIGADEVICE SEMICONDUCTOR (XIAN) INC., Xi'an, CN;
Abstract
An I2C wake-up circuit, method and electronic device are disclosed. The I2C wake-up circuit includes: a clock wake-up circuit, configured to send a clock wake-up signal to a clock circuit in response to detecting a start signal on a serial clock line SCL and a serial data line SDA; and a signal hold circuit, configured to hold the serial data line SDA in a state of not transmitting address information until a clock signal sent by the clock circuit that is wake-up is received. The present I2C wake-up solution can realize normal data reception through a simple hardware circuit without a specific address wake-up and maximize power saving by turning on the clock when there is access and turning off the clock when the access ends.