Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2011-02-22
2011-02-22
Beausoliel, Robert (Department: 2113)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
C714S014000, C714S022000, C713S324000, C711S162000
Reexamination Certificate
active
07895466
ABSTRACT:
An integrated circuit includes a DMA controller for performing conventional DMA transfers and for backing-up and restoring data during low power events. The integrated circuit includes one or more processor components, one or more peripheral components, a power management circuit and the DMA controller. The power management circuit manages power control within the integrated circuit. The DMA controller includes a DMA engine for executing DMA transfers between different ones of the components and memory based on configuration parameters provided to the DMA engine. A detection circuit configured determines if the power management circuit initiates a power state change. The DMA controller also has circuitry for providing a first set of configuration parameters to the DMA engine if no change in power state is detected and overriding the first set of configuration parameters with a second set of configuration parameters if a change in power state is detected.
REFERENCES:
patent: 6029249 (2000-02-01), Atkinson
patent: 7305502 (2007-12-01), Kadatch et al.
patent: 2004/0037156 (2004-02-01), Yoneda et al.
patent: 2006/0020765 (2006-01-01), Mahrla et al.
patent: 2008/0148083 (2008-06-01), Pesavento et al.
Shi, Kaijian, “Dual threshold voltages and power-gating design flows offer good results” Feb. 2, 2006 EDN pp. 65-70.
Beausoliel Robert
Ehne Charles
Telefonaktiebolaget L M Ericsson (publ)
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