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Direct memory access (DMA) is a feature of many computer systems that allows certain hardware subsystems to access main system memory independently of the central processing unit (CPU).
The analysis highlights Measurement and Standards as prominent areas in the source structure around Direct memory access.
Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.
Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.
High-confidence facts extracted from structured source data. Use them as anchors for further research.
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See recurring relationship patterns around Direct memory access before inspecting the individual extracted relationships.
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dma cpu memory data transfer controller bus system device address hardware used mode also transfers cache one pci block access
TTTA extracted 5 structured relationships around Direct memory access. Examples in this analysis include memory refresh interruptions → instance of → but no more than 0.9 MB/s in the PC/XT and 1.6 MB/s for 16-bit transfers in the AT due to ISA bus overheads and other interference and AMBA High-performance Bus → instance of → typical system bus infrastructure is a complex on-chip bus. The table shows each extracted connection, where it came from and its confidence.
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| memory refresh interruptions | instance of | but no more than 0.9 MB/s in the PC/XT and 1.6 MB/s for 16-bit transfers in the AT due to ISA bus overheads and other interference | 0.80 | text |
| AMBA High-performance Bus | instance of | typical system bus infrastructure is a complex on-chip bus | 0.80 | text |
| network controllers that need to transfer huge amounts of data to/from system memory will have two interface adapters to the AHB | instance of | high bandwidth devices | 0.80 | text |
| Intel's cancelled general-purpose GPU | instance of | in contrast to cache-coherent CMP architectures | 0.80 | text |
| Larrabee | instance of | in contrast to cache-coherent CMP architectures | 0.80 | text |
The concept neighborhoods around Direct memory access bring nearby vocabulary together. In this analysis, examples include Access, Direct and Operation. Use the clusters to find adjacent concepts and terminology that may deserve separate research.
For Direct memory access, one of the stronger structural bridges in this analysis connects Direct memory access with Examples. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.
TTTA analyzes the structure around Direct memory access to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as Measurement & Standards, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.
Source: Wikipedia — Direct memory access · EN edition · Analysis: TopicsToTalkAbout
