在PHY的情况下接收数据有效吗？

这是您连接到接收数据FIFO（在FPGA中）上的WR_EN引脚的信号。
就像TX_EN告诉PHY在TX_D信号上有有效数据进行传输一样，RX_DV告诉MAC（FPGA）RX_D信号上有有效的接收数据供MAC处理。
- 鲍勃埃尔金德
签名：新手的自述文件在这里：http：//forums.xilinx.com/t5/New-Users-Forum/README-first-Help-for-new-users/td-p/219369总结：1。
阅读手册或用户指南。
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以下为原文

That's the signal you connect to the WR_EN pin on the receive data FIFO (in the FPGA).
 
Just as TX_EN tells the PHY that there is valid data on the TX_D signals for transmission, RX_DV tells the MAC (FPGA) that there is valid received data on the RX_D signals for processing by the MAC.
 
- Bob Elkind
SIGNATURE:
README for newbies is here: http://forums.xilinx.com/t5/New-Users-Forum/README-first-Help-for-new-users/td-p/219369

Summary:
1. Read the manual or user guide.  Have you read the manual? Can you find the manual?
2. Search the forums (and search the web) for similar topics.
3. Do not post the same question on multiple forums.
4. Do not post a new topic or question on someone else's thread, start a new thread!
5. Students: Copying code is not the same as learning to design.
6 "It does not work" is not a question which can be answered. Provide useful details (with webpage, datasheet links, please).
7. You are not charged extra fees for comments in your code.
8. I am not paid for forum posts.  If I write a good post, then I have been good for nothing.View solution in original post

这是您连接到接收数据FIFO（在FPGA中）上的WR_EN引脚的信号。
就像TX_EN告诉PHY在TX_D信号上有有效数据进行传输一样，RX_DV告诉MAC（FPGA）RX_D信号上有有效的接收数据供MAC处理。
- 鲍勃埃尔金德
签名：新手的自述文件在这里：http：//forums.xilinx.com/t5/New-Users-Forum/README-first-Help-for-new-users/td-p/219369总结：1。
阅读手册或用户指南。
你读过手册了吗？
你能找到手册吗？2。
搜索论坛（并搜索网页）以寻找类似的主题。
不要在多个论坛上发布相同的问题。
不要在别人的主题上发布新主题或问题，开始新的主题！5。
学生：复制代码与学习设计不同.6“它不起作用”不是一个可以回答的问题。
提供有用的详细信息（请与网页，数据表链接）.7。
您的代码中的评论不需要支付额外费用。
我没有支付论坛帖子的费用。
如果我写一篇好文章，那么我一无所获。



以下为原文

That's the signal you connect to the WR_EN pin on the receive data FIFO (in the FPGA).
 
Just as TX_EN tells the PHY that there is valid data on the TX_D signals for transmission, RX_DV tells the MAC (FPGA) that there is valid received data on the RX_D signals for processing by the MAC.
 
- Bob Elkind
SIGNATURE:
README for newbies is here: http://forums.xilinx.com/t5/New-Users-Forum/README-first-Help-for-new-users/td-p/219369

Summary:
1. Read the manual or user guide.  Have you read the manual? Can you find the manual?
2. Search the forums (and search the web) for similar topics.
3. Do not post the same question on multiple forums.
4. Do not post a new topic or question on someone else's thread, start a new thread!
5. Students: Copying code is not the same as learning to design.
6 "It does not work" is not a question which can be answered. Provide useful details (with webpage, datasheet links, please).
7. You are not charged extra fees for comments in your code.
8. I am not paid for forum posts.  If I write a good post, then I have been good for nothing.