System-on-chip chip and its power consumption control method

Abstract

The invention discloses an on-chip system chip and a method for controlling its power consumption. The power consumption control module of the on-chip system chip has a sleep status control unit and a sleep status execution unit added; wherein the sleep status control unit controls the clock generating module via the sleep status execution unit according to the control information of the processor system to make clock generation module send high frequency clock signal to corresponding module. The inventive method comprises defining the work status of the central processor, each direct access storage device and corresponding storage devices; sending control information according to the above defined work status; outputting high frequency clock signal according to the control information by the clock generation module. The invention is characterized in that each module in the on-chip system chip sends corresponding control information to control power consumption.

Description

technical field [0001] The invention relates to a chip and a control method thereof, in particular to a system-on-chip chip and a power consumption control method thereof. Background technique [0002] With the rapid development of integrated circuit technology and the demand for consumer electronics products - especially portable customer-oriented electronic products, the rapid development of system-on-chip has been promoted, and many new topics have been raised for people. [0003] For battery-driven system-on-chips, we can no longer only consider the two aspects of its optimized space—speed and area, but we must pay attention to the third aspect that it has shown and is becoming more and more important—power consumption, so that In order to prolong the life of the battery and the running time of electronic products. [0004] In the process of actual application of the SoC, sometimes all the hardware resources of the SoC may be required to participate, but sometimes only ...

AI Technical Summary

Problems solved by technology

However, in the actual working process of the SoC chip, there may be such a situation, that is, some modules are in the idle state, while other modules are in the working state, and the working and idle states of these modules change in real time

For example, the processor system is idle, and the internal DMA and internal memory in other modules are also in idle state, while the external DMA, external memory, and functional modules are in normal working state, so, according to the control method in the prior art, it is impossible to accurately control of the power consumption of the system-on-chip

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