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:
Feb. 14, 2012
Filed:
Oct. 30, 2007
Rodney J. Pesavento, Chandler, AZ (US);
Joseph W. Triece, Phoenix, AZ (US);
Rodney J. Pesavento, Chandler, AZ (US);
Joseph W. Triece, Phoenix, AZ (US);
Microchip Technology Incorporated, Chandler, AZ (US);
Abstract
A system has a central processing unit (CPU) operable to operate in a sleep or low power mode and in an active mode, a plurality of system components operable to operate in a sleep or low power mode and in an active mode, and a direct memory access (DMA) controller operating independently from the CPU and operable to operate in a sleep or low power mode and in an active mode, wherein the DMA controller is further operable to transfer data from and to a memory or peripheral device, wherein when the system is in a sleep or low power mode, only the DMA controller and any system component which is necessary to perform a DMA transaction are switched into active mode.