发明名称 |
METHOD FOR POWER MANAGEMENT AND AN ELECTRONIC SYSTEM USING THE SAME |
摘要 |
A power-management method is provided, and the power-management method includes setting a central processing unit in a first low-power state when receiving a second low-power state request requiring the central processing unit to enter the second low-power state, obtaining first idle periods of the peripheral modules respectively to determine a second idle period according to the first idle periods of the peripheral modules, determining whether the peripheral modules have not sent a data-access request during the second idle period, setting the central processing unit in the second low-power state when the peripheral modules have not sent the data-access request during the second idle period, wherein each first idle period is an interval period between two data transmissions of each peripheral module. |
申请公布号 |
US2014195840(A1) |
申请公布日期 |
2014.07.10 |
申请号 |
US201314023668 |
申请日期 |
2013.09.11 |
申请人 |
VIA TECHNOLOGIES, INC. |
发明人 |
YANG Xiaolu;QI Zongpu |
分类号 |
G06F1/32 |
主分类号 |
G06F1/32 |
代理机构 |
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代理人 |
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主权项 |
1. A power-management method for an electronic system, wherein the electronic system comprises a central processing unit and a plurality of peripheral modules, and the power state of the central processing unit includes a working state, a first low-power state and a second low-power state, wherein the power-management method comprises:
setting the central processing unit in a first low-power state when receiving a request requiring the central processing unit to enter the second low-power state; obtaining first idle periods of the peripheral modules respectively; determining a second idle period according to the first idle periods of the peripheral modules; determining whether the peripheral modules have not sent a data-access request during the second idle period; and setting the central processing unit in the second low-power state when the peripheral modules have not sent the data-access request during the second idle period, wherein each first idle period is an interval period between two data transmissions of each peripheral module. |
地址 |
New Taipei City TW |