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DP83TC814R-Q1: DP83TC814x-Q1 can`t Linkup

Part Number: DP83TC814R-Q1

Hi Experts:

           Now,I have encountered a problem that  DP83TC814R-Q1 can`t  Linkup anther phy and switch box;

          We have done some things:

1、 Utilizing Digital Loopback is ok, Utilizing Reverse Loopback is not ok;

        

Log:

2、 The result of different  test mode as  accessory

2.1:The result of  test  mode1 (transmitter output) droop is not ok;

2.2:The result of  test  mode2 ( Master mode jitter) is  ok;

2.3:The result of  test  mode5 (  transmitter PSD) droop is  ok;

Report_2024_03_12_15_44_42.pdf

3、 We used DP83TG720R-Q1 to  replace DP83TC814R, the DP83TG720R can be worked in 1000M. So it is not the problem of pencil

Could you have any way to help us to develop the proble