Enhanced power reduction capabilities for streaming direct memory access engine
US7020724B2 · kind B2 · utility
3Cited by
8References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2001 |
| Grant date | Mar 28, 2006 |
| Priority date | — |
| Expiry date | Feb 26, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/50
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.