The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 10, 2010
Filed:
Nov. 28, 2006
Wen-juin Huang, Hsin-Tien, TW;
Chung-chin Huang, Hsin-Tien, TW;
Cheng-wei Huang, Hsin-Tien, TW;
Jui-ming Wei, Hsin-Tien, TW;
Wen-Juin Huang, Hsin-Tien, TW;
Chung-Chin Huang, Hsin-Tien, TW;
Cheng-Wei Huang, Hsin-Tien, TW;
Jui-Ming Wei, Hsin-Tien, TW;
Via Technologies, Inc., Taipei, TW;
Abstract
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.