公开(公告)号：US09880608B2

公开(公告)日：2018-01-30

申请号：US14840651

申请日：2015-08-31

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Young Duk Kim ,  Gilles Dubost ,  Jinpyo Park ,  Seung Chull Suh ,  Jae Gon Lee ,  Sang Wook Ju ,  Jung Hun Heo

IPC: G06F1/32

CPC classification number: G06F1/324 ,  G06F1/3228 ,  G06F1/3287 ,  Y02B70/12 ,  Y02B70/126 ,  Y02D10/126 ,  Y02D10/171

Abstract: An application processor includes a central processing unit (CPU), intellectual properties (IPs), a hardware power management unit (PMU) configured to determine whether the application processor is in system idle based on a first idle signal output from the CPU and output control signals as a result of the determination, and a clock signal supply control circuit configured to change an output signal supplied to the CPU and the IPs from clock signals to an oscillation clock signal, based on the control signals. The oscillation clock signal has a frequency lower than that of the clock signals.