A clockless chip wake-up circuit, wake-up method, and chip

Abstract

The invention discloses a clockless chip wake-up circuit, a wake-up method, and a chip, including an acquisition circuit and a detection circuit. The acquisition circuit is used to collect input signals to be detected; the detection circuit is used to detect signals to be detected, and generate wake-up according to the signals to be detected. signal, the detection circuit includes a state detection module, a state latch module, and a state recovery module. The state detection module is connected to the acquisition circuit to detect whether there is a signal input to be detected. If there is a signal input to be detected, the state detection module outputs the signal to be detected. The latch module is connected with the state detection module, and generates a wake-up signal according to the signal to be detected. After the wake-up signal is generated, the state recovery module resets the state latch module and the state detection module, and returns to the detection state. By collecting the input signal to be detected, detecting the signal to be detected, and generating a wake-up signal according to the signal to be detected, clockless IO wake-up is realized, power consumption is minimized as much as possible, and circuit reliability is improved.

Description

technical field [0001] The invention relates to the field of electronic circuits, in particular to a clockless chip wake-up circuit, a wake-up method, and a chip. Background technique [0002] The microcontroller chip (MCU) has an independent processor, I / O device and memory, which can reduce the size and reduce the cost of equipment. It is widely used in various fields, such as household appliances, medical equipment, industrial control, remote equipment, office equipment, toys and embedded systems. [0003] Power consumption is a very important parameter to measure the microcontroller chip (MCU). For different chips that realize the same function, the higher power consumption density will cause the temperature of the chip to rise, affect the reliability of the circuit, and reduce the life of the device. High power consumption means more battery consumption and higher usage cost. Therefore, designing chips with low power consumption has become the mainstream demand of chip...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the technical problem that the use of clock detection in the prior art will increase additional power consumption, and provide a clockless chip wake-up circuit, wake-up method, chip

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