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存取控制器
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  “存取控制器”译为未确定词的双语例句
     The AX88180 supports 16/32-bit SRAM-like host interface and Gigabit Ethernet MAC,which is IEEE802.3 10Base-T,IEEE802.3u 100Base-T,and IEEE802.3ab 1000Base-T compatible.
     AX88180内置10/100/1000 Mb/s以太网媒体存取控制器(MAC),符合IEEE 802.3/IEEE 802.3u/IEEE 802.3ab协议,可与一般16/32位微控制器连接,其操作与SRAM相同。
短句来源
  相似匹配句对
     TIME PROCEDURE MAKING CONTROL MACHINE
     时序加工控制器
短句来源
     The Design of Slide-model Controller
     滑模控制器的设计
短句来源
     Access for the Large Scale Band Matrix
     大规模带状矩阵的存取
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     Open Access Repositories
     开放存取仓储
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  access controller
It has functions of nearly entire master/slave interface of VMEbus, and can act as DMA (Direct Memory Access) controller and perform block transfer in DMA or master processor initiative way without length limit.
      
Implementation of access controller for ethernet passive optical network
      
This paper presents the design and implementation of access controller used for Ethernet passive optical network (EPON).
      
This circuit functions as a smart card holder identifier, access controller for hospital doors and also can be used as a smart card reader/writer.
      
Access Controller can be applied to perform access control checks.
      
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This paper describes a high-speed microcomputer data acquisition system which is comprised of DMA controller. It can gather the output signals from imaging CCD, and the high-speed data from other peripheral devices as well. The transfer of the sampling data is carried out without the interference from CPU. The system has the advantages of simplicity in configuration, flexibility in application, highness in transfer rate and price performance. (5 illus., 1ref.)

本文介绍一种用DMA(直接存储器存取)控制器构成的高速微型机数据采集系统,它既可用来采集摄像CCD(电荷耦合器件)输出信号,也可用来采集其它外部设备的高速数据。该系统的特点在于数据的传送不需要经过CPU“中转”,传送速度快,而且结构简单,可靠性好,应用灵活,性能价格比高。

Universal Serial Bus 2.0 have become the mainstream interface technology because it have the virtue of high speed, using easily, hot Plug and Play, low- cost, and etc. Universal Serial Bus 2.0 system consists of USB host control chip and equipment inter- face control chip, i.e. peripheral devices chip. Developing USB commonly is only to develop USB peripheral devices chip. USB pe- ripheral device chips are involved with FIFO and FIFO controller, Direct Memory Access Controller( DMAC) , Serial Interface Engine...

Universal Serial Bus 2.0 have become the mainstream interface technology because it have the virtue of high speed, using easily, hot Plug and Play, low- cost, and etc. Universal Serial Bus 2.0 system consists of USB host control chip and equipment inter- face control chip, i.e. peripheral devices chip. Developing USB commonly is only to develop USB peripheral devices chip. USB pe- ripheral device chips are involved with FIFO and FIFO controller, Direct Memory Access Controller( DMAC) , Serial Interface Engine ( SIE) , USB2.0 Transceiver Macrocell Interface (UTMI), and etc. These designed peripheral devices chip codes need be validated on developing USB2.0 IP core, which can be completed by self- designed UTMI codes. But this validating process will become very complex because self- designed UTMI codes are not always correct. In this paper, a set of detailed methods, which make use of ut- mi_fz Flexmodel in the SmartModel tools, and additional tasks to design a test validation system about USB2.0 Transceiver Macrocell Interface are presented. Simulation results show these methods are valid, so can offer a kind of reference method for developing USB2.0 system.

USB2.0因具有高速、易用、热插拔、低成本等特点而成为计算机接口技术的主流,具有广阔的应用前景。USB2.0系统一般分成主机/HUB控制芯片和设备接口控制芯片(即外设)两方面。传统意义的USB开发,仅是对USB外设的开发。USB外设包括FIFO及FIFO控制器、IDE硬盘、直接存储器存取控制器(DMAC)、串行接口引擎(SIE)、UTMI收发器、内存、微处理器单元(MPU)等部分,在USB2.0IP核开发时需要对设计的这些外设代码进行测试验证,测试时可以用自己设计的UTMI电路代码,但因其本身正确性还未加验证,因此测试较麻烦复杂,本文通过实践给出了在开发USB2.0系统时利用utmi_fzFlex-Model模型和自编task完成对USB功能块在事务层上各项作业通讯测试的方法和过程,仿真实践证明此方法是有效的,因此可为USB2.0IP核的设计开发提供参考帮助。

The AX88180 is a high performance and cost-effective Non-PCI Gigabit Ethernet controller for various embedded systems including consumer electronics and home network markets that require a high bandwidth of network connectivity.The AX88180 supports 16/32-bit SRAM-like host interface and Gigabit Ethernet MAC,which is IEEE802.3 10Base-T,IEEE802.3u 100Base-T,and IEEE802.3ab 1000Base-T compatible.The principle & application of AX88180 are introduced,and the application circuit is given.

AX88180是一款高性能低成本的Non-PCI千兆以太网控制器,适用于多种需要高速接入网络的嵌入式系统,如消费电子和家庭网络等。AX88180内置10/100/1000 Mb/s以太网媒体存取控制器(MAC),符合IEEE 802.3/IEEE 802.3u/IEEE 802.3ab协议,可与一般16/32位微控制器连接,其操作与SRAM相同。介绍了AX88180的原理与特性,并给出了具体的应用电路。

 
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