Automatic reset module in integrated circuit

Abstract

The present invention relates to an automatic reset module in an integrated circuit. The automatic reset module comprises a multiple-valued low-voltage reset detection module and a power-on reset module; the multiple-valued low-voltage reset detection module and the power-on reset module adopt the same external power supply for supply power, and one of the multiple-valued low-voltage reset detection module and the power-on reset module is selected to perform reset operation of the integrated circuit; the multiple-valued low-voltage reset detection module LVR and the power-on reset module POR are cooperatively used, when the VDD voltage value is rapidly increased, the power-on reset module POR allows the circuit to start work form a reset state; and when the VVD voltage value is slowly increased, the multiple-valued low-voltage reset detection module LVR allows the circuit to start work form a reset state. Through cooperation of two rest modules, the operation reliability of the whole integrated circuit is greatly improved.

Description

technical field [0001] The invention relates to the technical field of integrated circuits, in particular to an automatic reset module in an integrated circuit. Background technique [0002] An integrated circuit refers to a micro-component that is processed by modern semiconductor processing technology, integrates a large number of semiconductor devices such as transistors, resistors and capacitors, can complete specific functions, and is used in modern electronic systems. [0003] There is usually a circuit structure called a reset module inside an integrated circuit, which is used to reset other modules in the circuit, that is, by using this reset module, other modules in the integrated circuit can be restored to their original state. A stable potential or state. [0004] The reset structure of integrated circuits is usually divided into external reset and internal reset. The external reset is a reset control signal pin specially set for the integrated circuit. When it i...

AI Technical Summary

Problems solved by technology

Although the above-mentioned low-voltage reset structure is simple in structure and can detect changes in the power supply voltage at any time to realize the reset function, the power supply voltage values ​​LVRB / LVRE at the start and end of the low-voltage reset structure of the above-mentioned low-voltage reset structure are limited to a certain group of fixed Therefore, the flexibility of the reset function is lacking, and the validity of the reset signal during the entire working process cannot be well guaranteed.

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