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    • 3. 发明公开
    • APPARATUS AND METHOD FOR REDUCING POWER CONSUMPTION IN SYSTEM ON CHIP
    • 减少系统芯片功耗的装置和方法
    • EP2188693A2
    • 2010-05-26
    • EP08793747.0
    • 2008-09-10
    • Samsung Electronics Co., Ltd.
    • KIM, Sung-Min
    • G06F1/26
    • G06F1/3203
    • An apparatus and method for reducing power consumption in a System on Chip (SoC) are provided. The SoC includes a clock unit for providing clocks to all elements included in the SoC, a Central Processing Unit (CPU) for controlling the SoC to perform designated functions, a main regulator for supplying power provided from an external battery to remaining elements included in the SoC other than a PMU, and a restoration processor for storing, in the PMU, registration information on the CPU and all peripherals included in the SoC when a transition from an active state to a sleep state is made. The PMU stops provision of a clock from the CPU by controlling the clock unit for stopping provision of all clocks by controlling the clock unit and for controlling the main regulator to be powered off when the restoration processor, wherein the PMU requests the restoration processor to store the registration information, completes the register information storing, when the transition from the sleep state to the active state is made.
    • 提供了一种用于降低片上系统(SoC)中的功耗的设备和方法。 SoC包括用于向SoC中包括的所有元件提供时钟的时钟单元,用于控制SoC以执行指定功能的中央处理单元(CPU),用于将外部电池提供的电力提供给包括在SoC中的剩余元件的主调节器 SoC以外的SoC以及恢复处理器,该恢复处理器用于当从活动状态转换到睡眠状态时将关于CPU和SoC中包括的所有外围设备的注册信息存储在PMU中。 PMU通过控制时钟单元来停止从CPU提供时钟,该时钟单元通过控制时钟单元来停止提供所有时钟,并且当恢复处理器(其中PMU请求恢复处理器存储时)控制主调节器被断电 该注册信息在完成从休眠状态到活动状态的转换时完成存储的注册信息。