GE-VMIVME-4140 定义了一个在紧密耦合硬件架构中可以进行互联数据处理

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GE-VMIVME-4140 定义了一个在紧密耦合硬件架构中可以进行互联数据处理

VME总线是一种通用的计算机总线，结合了摩托罗拉公司versa总线的电气标准和在欧洲建立的标准机械形状因子，是一种开放式架构。它定义了一个在紧密耦合硬件架构中可以进行互联数据处理、数据储存和连接外围控制器件的系统。VME数据传输机制是异步的，有多个总线周期，地址宽度是16、24、32、40或64位，数据线路的宽度是86、24、32和64位，因此只受制于信号交换协议而不依赖于系统时钟，因为是两种标准的结合。 VME系统也可以被看作是两部分，一部分是它的机械架构，此部分决定着VME总线系统背板、前置面板和嵌入式板的尺寸大小，而另一部分则是功能架构，它定义了系统的运转流程。VME总线家族中共有三种形态：VM64、VM64X、VM320。经过多年的改造升级，VME系统已经发展的非常完善，围绕其开发的产品遍及了工业控制、军用系统、航空航天、交通运输和医疗等领域。

GE-VMIVME-4140 定义了一个在紧密耦合硬件架构中可以进行互联数据处理

The VME bus is a general-purpose computer bus that combines the electrical standard of MOTOROLA’s versa bus with the standard mechanical form factor established in Europe and is an open architecture. It defines a system for interconnecting data processing, data storage, and peripheral control devices in a tightly coupled hardware architecture. The VME data transmission mechanism is asynchronous, with multiple bus cycles, address widths of 16, 24, 32, 40 or 64 bits, and data line widths of 86, 24, 32 and 64 bits, so it is only subject to the signal exchange protocol and does not depend on the system clock, because it is a combination of the two standards.

The VME system can also be seen as two parts, one is its mechanical architecture, which determines the size of the backplane, front panel and embedded board of the VME bus system, and the other is the functional architecture, which defines the operation process of the system. VME bus family has three forms: VM64, VM64X, VM320. After years of transformation and upgrading, the VME system has developed very well, and the products developed around it have covered the fields of industrial control, military systems, aerospace, transportation and medical treatment.