A dynamic voltage regulation system, method and chip for implementing low power consumption in an MCU

Abstract

The application belongs to the chip design technical field, and discloses a dynamic voltage regulation system, method and chip for realizing low power consumption in an MCU. The system comprises a power supply module and a dynamic voltage regulation module. The dynamic voltage regulation module comprises a first register unit, a virtual critical path unit, a second register unit and a voltage regulation unit connected in series. The power supply module is connected with an external power supply, is used for converting the external power supply into a power supply voltage for the MCU, and provides power for the first register unit, the virtual critical path unit, the second register unit and the voltage regulation unit. The dynamic voltage regulation module is used for generating a voltage regulation instruction and transmitting the voltage regulation instruction to the power supply module, and the power supply module performs voltage regulation according to the voltage regulation instruction. The output voltage of the power supply module is dynamically changed, and the power consumption of the digital circuit part is effectively regulated according to the chip running environment.

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