A Microcontroller for Improving Electromagnetic Compatibility Characteristics of Automotive Electronic Control System

Abstract

The invention discloses a microcontroller used for improving the electromagnetic compatibility characteristic of an automobile electronic control system. A multi-mode clock generation module and an IO port module are improved, a clock gating method is applied to the multi-mode clock generation module, the electromagnetic compatibility characteristic of the IO port module is reinforced with a turning rate and driving strength control method, and the electromagnetic compatibility characteristic of the automobile electronic control system is effectively improved. The microcontroller used for improving the electromagnetic compatibility characteristic of the automobile electronic control system has the advantages of being simple in structure and high in adaptability, clocks and ports which are applied to an automobile electronic MCU are rich in configuration function, different working modes and using characteristics can be configured according to the requirement of the system, all the independent peripheral clocks can be subjected to gating setting, the functions of open-drain setting, upward and downward pull, digital / analog function multiplex, interrupt multiplex, EMC control and the like are integrated on the ports, and high flexibility and high configurability are achieved.

Description

technical field [0001] The invention relates to the technical field of integrated circuit (Integrated Circuit, IC) digital front-end design, in particular to a microcontroller for improving the electromagnetic compatibility characteristics of an automotive electronic control system, through the clock generation module in the microcontroller of the automotive electronic control system The reinforced design of Electromagnetic Compatibility (EMC) characteristics of the input and output ports can better solve the electromagnetic compatibility problems generated inside the chip and external coupling, thereby improving the EMC characteristics of the chip. Background technique [0002] The electromagnetic compatibility characteristics of the automotive electronic control system are particularly important to the stability and reliability of the entire vehicle. As the most critical unit in the electronic control system - the microcontroller (Micro Control Unit, MCU), its electromagnet...

AI Technical Summary

Problems solved by technology

[0007] In view of this, the main purpose of the present invention is to provide a kind of microcontroller for improving the electromagnetic compatibility characteristics of the automotive electronic control system, to solve the disadvantages such as the clock design part of the microcontroller cannot control the electromagnetic interference intensity, effectively Improving Electromagnetic Compatibility Characteristics of Automotive Electronic Control System

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