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Explorer
Explorer
2,432 Views
Registered: ‎04-29-2010

PCIe Phy

Hi, 

I could be wrong, but I beleive that PCIe wouldn't require a Phy on the board to go over GTP/GTX (in V5 SLX series)?

 

(Page 2 http://www.xilinx.com/publications/prod_mktg/pn2035.pdf)

 

Please correct me if I am wrong? But, if it is true, why is this the case?

 

Howcome we can talk directly to PCIe by bypassing the Phy? Isn't it after all, PCIe is some sort of a Link Layer, and needs some sort of a PCIe Phy?

 

Thanks, 

--Rudy

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Xilinx Employee
Xilinx Employee
2,419 Views
Registered: ‎01-03-2008

Re: PCIe Phy

A PHY refers to the physical interface for a protocol. In the case of Virtex-5 SXT The GTP is compatible with the physical interface specifications of the PCIe protocol and there is no need for an external PHY.
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