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In LS1043A, Unused lanes in SerDes

Question asked by Logesh S on Dec 20, 2016
Latest reply on Dec 20, 2016 by Serguei Podiatchev

We are using SerDes as per below configuration



Bit rate(Gbps)

SerDes lane

SGMII (1G/2.5G)/ XFI (10G)


SerDes lanes 0

PCI Express 1 (x2)

5 GT/s

SerDes lanes 2-3


Lane 1 is unsed in our board. What should I do with Lane 1? Connect to Ground or left unconnected?