Direct Memory Access

Direct Memory Access ( DMA ) and double buffers are discussed . DDC basic bed is built based on the previous research .

最后，深入研究了直接存储器访问（DMA）和双缓冲区方式，结合PM511P数据采集卡，完成了DDC基础平台的软件设计工作。

DSP system software design is emphasized , which includes DSP chip configuration , peripheral initialization , enhanced direct memory access ( EDMA ) ping-pong buffering transmission .

重点介绍了DSP系统软件设计部分，包括DSP芯片配置、DSP外设初始化、增强型直接存储器访问（EDMA）、乒乓缓冲传输等底层软件设计，以及算法的设计实现。

We also add the'unsafe'keyword since direct memory access isn 't thread safe .

我们也添加了“不安全”的关键词因为直接内存获取并不安全。

Direct Memory Access in a MCS-51 Single-Chip Microcomputer Based System

MCS-51单片机系统中的DMA方法

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

WDM驱动程序中直接内存访问（DMA）方式的设计和实现

It also presented the block diagram and design procedures by using Direct Memory Access for exchanging information .

给出结构框图和直接存储器存取（DMA）方式交换信息的设计思想。

Direct memory access transfer

存储器直接存取传送

Microprogramming-Controlled Direct Memory Access and Its Application in the Fields of Test , Measurement and Control

微控DMA原理及其在测控领域的应用

Make a copy by means of a Photostat device . repetitive direct memory access

用直接复印机进行复制。重复直接存储器存取

Ultra DMA Ultra Direct Memory Access

超高速直接内存存取

DMAC Direct Memory Access Controller

直接内存存取控制器

A FLASH Direct Memory Access ( DMA ) technique has been adopt for high-speed data transport between FLASH memory and data buffer .

研究并实现了FLASH存储器的直接存储访问（DMA）控制技术，极大地提高了数据存取速度。

A method and apparatus for high performance volatile disk drive ( VDD ) memory access using an integrated direct memory access ( DMA ) engine .

一种方法和装置，用于使用集成直接存储器访问（DMA）引擎进行高性能易失性磁盘驱动器（VDD）存储器访问。

The hardware design mainly completes the TS ( Transport Stream ) demultiplexing and filtering , and DMA ( Direct Memory Access ) transferring .

硬件设计部分主要完成了传输流的解析、解复用功能和数据的DMA（DirectMemoryAccess）传输。

For this communication card , the kernel module programming method in Linux , the interruption of implementation and the Direct Memory Access ( DMA ) were illustrated .

针对该通信设备，介绍其在Linux下采用内核模块编程方式，实现中断和DMA方式数据传送的方法。

It also explains the principles of USB ( Universal Serial Bus ) communication , the characteristics of its protocol and the DMA ( Direct Memory Access ) communication method .

同时也介绍了变压器绕组变形测试仪的通信模块的设计，说明了USB（通用串行总线）通信原理，协议特点，以及DMA通信方式。

The problem of image data loss was solved by comparing the number of SOF ( Start Of Frame ) and DMA ( Direct Memory Access ) transfer interrupt .

通过比较SOF（StartOfFrame）中断和DMA（DirectMemoryAccess）传送结束中断，有效地解决了图像数据丢失的问题。

Two on-chip peripherals in DSP , Multichannel Buffered Serial Port ( McBSP ) and Direct Memory Access ( DMA ), are introduced in detail .

文中详细介绍了DSP的两个片上外设&DMA控制器和多通道缓冲串口McBSP。

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

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）。

The thesis uses PC 's Direct Memory Access idea for reference to put forward direct access Single-clip Microcomputer 's extension Read Access Memory concept . Then explains hardware and software realize for it in details .

借鉴PC机DMA思想提出单片机片外数据存储区直接存取概念，并详细阐述了PC机直接存取单片机内存的软硬件实现方法。

DMA is the abbreviation of Direct Memory Access , it is a fast data transfer operating mode through which outside device and memory can write and read data each other directly without the temporary store of CPU .

DMA是存储器直接存取（DirectMemoryAccess）方式的缩写，它是指一种高速的数据传输操作方式，允许在外部设备和存储器之间直接读写数据而不需要通过CPU暂存。

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 ) .

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 application of the double buffering acquisition in cycle mode with DMA ( Direct Memory Access ) and the multithreading technique of Visual C ~ ( + + ) for the high-speed data acquisition is described chiefly .

重点描述了采用DMA（DirectMemoryAccess）循环双缓冲采集方式和VC++6.0多线程技术将高速数据采集引入到闪光焊质量分析中的实施过程。

Used the idea of the double buffer and direct memory access , a real time data acquisition and logging about the succession , big capacitance leakage current is realized ; A digital filter is designed to filter high frequency signals .

运用双缓冲和内存直接映射的设计方法实现对连续、大容量泄漏电流信号的实时采集和存储；

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 .

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。

After analyzing the traffic characteristics of different data transfer channels in detail , we propose a bus scheduling policy based on multi-channel direct memory access ( DMA ), and employ it in a single chip real-time audio / video decoding system .

本文通过详细分析总线上片内外数据通道的特点和数据流量，给出了一种基于多通道DMA的总线调度策略，并将该策略成功运用于单芯片音视频解码系统芯片的总线设计中。

The instruction decoder is designed to facilitate prioritized thread scheduling . The instruction issue logic considers the utilization of the shared execution pipeline . And the interface between direct memory access and scratch-pad memory is refined .

设计了有利于线程优先级调度的译码段，考虑了共享流水线资源利用率的指令发射逻辑和改进的直接存储访问和便签式存储器接口。

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 ] ) .

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）。