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DP83867IR: 100base C and D channel output

Part Number: DP83867IR

Tool/software:

Hello,
Our customer plans to utilize DP83867 for 100base.
On their PCB layout is routing TD+/TD-/RD+/RD- terminals of RJ-45 connector are connecting to TD_M_D/ TD_P_D/ TD_M_C/ TD_M_C pins of DP83867.
During compliance test of 100 Base Standard MDI (Test Mode 5) , test signal is outputted to A and B channel, it is not come from C and D channel of DP83867.
Should they change PCB routing from C and D to A and B or it that just on compliance test procedure issue?
Please tell us any workaround.

Regards,
Mochizuki