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DP83867E: transformer selection when only use 10/100Base-T

user5354674
Prodigy 10 points
Part Number: DP83867E

Hi,

I want to use DP83867E with Xilinx MPSoC PSGEM(RGMII).
Because DP83867 RGMII PHY is supported to use with MPSoC.

www.xilinx.com/.../68605.html

And I will use 4 pin HSD connector.Can't connect 4 pair 1000Base-T.
www.rosenberger.com/.../hsd.php

What I want to know is which transformer to use when I use only 10/100Base-T.
Can I use 10/100Base-T transformer and terminate/float DC+/DC-/DD+/DD- in PHY side?
or
Should I use 1000Base-T transformer and terminate/float DC+/DC-/DD+/DD- in connector side?