什么是以太网协议中的PHYAD？

嗨，
请查看以下文档的第52页。
http://www.xilinx.com/support/documentation/ip_documentation/gig_eth_pcs_pma/v11_4/pg047-gig-eth-pcs-pma.pdf
它会回答你的问题。
问候，
KR
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以下为原文

Hi,
 
 
Have a look at the page 52 of the below document.
http://www.xilinx.com/support/documentation/ip_documentation/gig_eth_pcs_pma/v11_4/pg047-gig-eth-pcs-pma.pdf
 
It will answer your question.
 
 
Regards,
KR
 
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HI Huppa，
PHYAD是notopitonal，需要访问MDIO寄存器。
您在核心的GUI配置中选择的值应该用于访问寄存器。
您可以在Koti推荐的文档中找到更多详细信息。
问候，萨蒂什-----------------------------------------------
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- 如果提供的信息有用，请将答案标记为“接受为解决方案”。给予您认为有用的帖子。感谢.--
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以下为原文

HI Huppa,
 
The PHYAD is not opitonal and it is required to access the MDIO registers.
 
The value you selected in the GUI configuration of the core should be used to access the registers.
 
You can find more details in the doc referred by Koti.
Regards,

Satish

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你好，
谢谢你的回复。
我已经阅读了pg047文档的物理地址（PHYAD）部分。
我知道它应该是介于1到31之间的值，但这是你有多个PHY的时间，但现在我只有一个phy。
所以，因为我不知道PHY地址。
关于可选我的意思是选择1到31之间的值是可选的ot no？
这意味着当我只有一个phy时，select PHYAD = 1或PHYAD = 31之间的区别是什么？
谢谢



以下为原文

Hello,
Thanks for your replies.
I've read Physical Address (PHYAD) part  of pg047 document. I know it should be a value between 1 to 31 but this is for the time that you have more than one PHY, BUT now I've just one phy. So, because of that I don't know about PHY Address. about Optional I mean select a value between 1 to 31 is optional ot no? It meanswhen I have just one phy, what is difference between select PHYAD = 1 or PHYAD = 31?
 
Thanks

嗨Huppa，
是的，它能够使用相同的主MDIO接口来处理不同的PHY，并且如果您有一个PHY。
如果将其地址指定为1或31，则无效，但GUI中指定的地址应用于访问。
问候，萨蒂什-----------------------------------------------
--- --------------------------------------------请注意
- 如果提供的信息有用，请将答案标记为“接受为解决方案”。给予您认为有用的帖子。感谢.--
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以下为原文

Hi Huppa,
 
Yes it is the capability to address different PHY's using the same master MDIO interface and if you have a single PHY.
 
It does not make any difference if you assign it's address as 1 or 31 but the assigned address in the GUI should be used to access it.
Regards,

Satish

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