MVI71-DFNT  以太网接口模块

描述

MVI71-DFNT  以太网接口模块

MVI71-DFNT是一款以太网接口模块，是连接以太网网络和设备的重要组件，其主要功能是在以太网网络和设备之间传送帧。该模块通常包括一个双工端口，该端口既能够发送数据也能接收数据。在发送数据时，模块会为数据包添加帧头，包括前导字段和帧开始标志，并生成CRC校验码，然后将此数据帧发送到以太网上。在接收数据时，模块将解码从以太网收到的数据包，去除帧头和进行地址校验，然后将数据缓存在片内。

MVI71-DFNT通常具有多种工作模式，以满足不同的应用需求。例如，它可能支持将接收到的每个帧回送出双工端口，或者只回送满足预定评估标准的帧，而丢弃不满足标准的帧。

此外，MVI71-DFNT还涉及MAC（Media Access Control）控制器和PHY（Physical Layer）物理层接口。MAC控制器负责处理数据包的发送和接收，而PHY接口则负责物理层上的数据传输。这两个组件协同工作，使得以太网接口模块能够正常地发送和接收数据。

需要注意的是，以太网接口模块的具体实现和功能可能因不同的设备和应用场景而有所差异。因此，在选择和使用以太网接口模块时，需要根据具体的需求和场景进行考虑和选择。

MVI71-DFNT  以太网接口模块

MVI71-DFNT is an Ethernet interface module, which is an important component of connecting Ethernet networks and devices. Its main function is to transfer frames between Ethernet networks and devices. The module usually includes a duplex port that is capable of both sending and receiving data. When sending data, the module adds a frame header to the packet, including the leading field and the frame start flag, generates a CRC check code, and then sends this data frame to the Ethernet. Upon receiving the data, the module decodes the packet received from the Ethernet, removes the frame header, performs address verification, and then caches the data onto the chip.

MVI71-DFNT usually has a variety of operating modes to meet different application requirements. For example, it may support sending back every frame received out of the duplex port, or sending back only those frames that meet predetermined evaluation criteria and discarding those that do not.

In addition, the MVI71-DFNT also involves the Media Access Control (MAC) controller and the Physical Layer (PHY) interface. The MAC controller handles the sending and receiving of packets, while the PHY interface handles the data transfer on the physical layer. These two components work together to enable the Ethernet interface module to send and receive data normally.

It should be noted that the implementation and functions of Ethernet interface modules may vary according to different devices and application scenarios. Therefore, when selecting and using Ethernet interface modules, you need to consider and select them according to specific requirements and scenarios.