Enhanced power reduction capabilities for streaming direct...

Details Enhanced power reduction capabilities for streaming direct... Enhanced power reduction capabilities for streaming direct...

2006-03-28

2006-03-28

Huynh, Kim (Department: 2182)

Electrical computers and digital data processing systems: input/

Input/output data processing

Direct memory accessing

C710S023000, C710S072000, C714S056000, C713S300000

Reexamination Certificate

active

07020724

ABSTRACT:
A streaming direct memory access (DMA) engine is disclosed. The streaming DMA engine includes several power reduction capabilities. A controller throttles the DMA engine according to the system throughput requirement and the system processor operation state. The DMA engine holds off a new read request to the memory if the data present in the DMA engine requires re-transmission. The DMA engine holds off a new write request to the memory if the data present in the DMA engine is corrupted, until the corrupted data is discarded.

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