直接内存访问

WDM驱动程序中直接内存访问（DMA）方式的设计和实现

A design and its implementation of direct memory access by WDM device driver

通过使用AIXuDAPL，可以利用API提供的特性，包括远程直接内存访问（RDMA）。

With AIX uDAPL , you can incorporate the features provided by the API , including the capability to do remote direct memory access ( RDMA ) .

本课题利用CCD摄像机和图像采集卡进行图像采集，并运用VC++开发了图像采集系统，实现了图像数据的直接内存访问。

Image acquisition is realized through CCD camera and a image acquisition card . Using VC + + , a image acquisition system accessing to buffer directly is designed .

介绍DLL技术在Windows编程中的基本运用方法及应用实例，给出了直接内存访问及端口I/O的两个实用DLL的全部源代码。

Its basic utilization method and application of DLL technique is introduced in Windows programming , and shows all source coders of two practical DLL about internal memory access and port I / O.

SPE用直接内存访问（DMA）命令访问主存储器，可以在主存储器与称为本地库或本地存储（LS）的私有本地内存之间移动数据和指令。

The SPEs access main storage with direct memory access ( DMA ) commands that move data and instructions between main storage and a private local memory , called a local store or local storage ( LS ) .

千兆以太网交换芯片是千兆以太网络中的关键芯片，芯片中的直接内存访问（DMA）单元的性能是决定芯片的吞吐量的关键因素。

Gigabit Ethernet Layer 2 switch chip is the key chip based on which Gigabit Ethernet technology can be used . The performance of Direct Memory Access ( DMA ) in chip decide the throughput of switch chip .

最有效的方案是使用像AMDI/OMMU（IOMMU）这样的硬件协助来提供Guest物理地址到主机物理地址的透明转换（用于直接内存访问[DMA]这样的操作）。

The most efficient scheme uses hardware assists such as the AMD I / O MMU ( IOMMU ) to provide transparent translation of guest physical addresses to host physical addresses ( for operations such as direct memory access [ DMA ] ) .

直接内存访问技术在无人机地面站遥测数据采集中的应用

DMA Transfer Technology in Telemetry Data Acquisition of UAV Base Station

开发了视频捕获系统，实现了视频数据的直接内存访问。

A video capture system accessing to buffer directly is designed .