发明名称 |
Method for power management of central processing unit and system thereof |
摘要 |
A method for power management of a CPU and a system thereof, which drive the CPU to enter a more efficient power saving state are disclosed. A chip of the present invention sends a first control signal to drive the CPU to wake from a non-snooping sleep state and enter a normally executing instruction state as well as a system management mode to execute a system management interrupt routine. Then the chip enables an arbiter to transmit a bus master request to the CPU for processing. After completing the processing of the bus master request, the chip disables the arbiter and the CPU drives the chip to send a second control signal to drive the CPU to return to the non-snooping sleep state according the system management interrupt routine.
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申请公布号 |
US7774629(B2) |
申请公布日期 |
2010.08.10 |
申请号 |
US20060604814 |
申请日期 |
2006.11.28 |
申请人 |
VIA TECHNOLOGIES, INC. |
发明人 |
HUANG WEN-JUIN;HUANG CHUNG-CHIN;HUANG CHENG-WEI;WEI JUI-MING |
分类号 |
G06F1/26;G06F1/32;G06F13/00 |
主分类号 |
G06F1/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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