A clock control method and device

Abstract

The present invention provides a clock control method and device. The device includes a sleep mode management module and a sleep policy execution module; The clock control strategy obtained by the register, close the analog IP that does not work in shallow sleep mode; after the business module is finished running, the clock control device obtains the clock control strategy from the shallow sleep register, and turns on the analog IP that is closed in shallow sleep mode; the sleep strategy execution module , is also used for when the deep sleep mode is started, the clock control device automatically executes off the analog IP that does not work in the deep sleep mode; the sleep policy execution module is also used for the clock control device to automatically execute when the external interrupt arrives after the deep sleep mode is started. Analog IP turned off in deep sleep mode. The invention adopts the hardware system to automatically manage the gate control clock, thereby greatly improving the processing performance.

Description

technical field [0001] The invention belongs to the field of clock control, in particular to a clock control method and device. Background technique [0002] Power consumption management has always been the key to chip development and design, and is the basis for the low-power consumption of the entire chip. A good power consumption management method can not only improve the operating speed of the entire chip, but also enable it to operate with low energy consumption and prolong the standby time. [0003] The traditional power management method is mainly realized by dividing its constituent modules into multiple clock regions, and then using the embedded software of DPM technology to manage the clock supply of each clock region, and completely shutting down the clocks of modules that do not participate in the current work input, to turn the clock supply back on when required to engage the work, [0004] like figure 1 As shown, the software configures the 1.1 register, and ...

AI Technical Summary

Problems solved by technology

[0006] The above methods require software personnel to be very clear about the operation process, which increases the complexity of the software and affects the performance of the chip.

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