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. 30, 2021
Filed:
Nov. 26, 2019
Shenzhen Goodix Technology Co., Ltd., Guangdong, CN;
SHENZHEN GOODIX TECHNOLOGY CO., LTD., Shenzhen, CN;
Abstract
The present disclosure relates to the technical field of a multi-chip system, and provides a master chip, a salve chip, and an inter-chip DMA transmission system. The master chip is connected to the slave chip through at least one first transmission channel () and a second transmission channel (). The master chip includes a DMA controller () and an MCU (). For each of the first transmission channels, when it is detected that any first transmission channel () is in an idle state, the MCU () configures one of a plurality of first peripherals () of the slave chip into a DMA mode. The DMA controller () is configured to receive, through the first transmission channel (), a DMA request (req_s_0-req_s_N) generated by the first peripheral () in the DMA mode, and obtain a DMA data of the first peripheral () through the second transmission channel ().