Direct memory access system and method using the same
US9021153B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 22, 2013 |
| Grant date | Apr 28, 2015 |
| Priority date | — |
| Expiry date | May 22, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/28
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention discloses a DMA system capable of being adapted to various interfaces. The DMA system includes the following advantages: 1) the software porting effort can be reduced when different interfaces are integrated into a SoC; 2) a flexible DMA that could provide protocol transparency and could be ported into different interfaces easily; 3) a scalable DMA that can support unlimited TX/RX scattering/gathering data segments; 4) a reusable DMA that provides user defined TX information (or RX information) and TX message (or RX message) field; and 5) a high performance DMA that support unaligned segment data pointers and unlimited scattering/gathering data segments, so as to reduce extra memory copies by CPU.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.