This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

DP83822I: DP83822I 100 Mbps MII Receive Timing

Part Number: DP83822I

Hi Team,

 

Customer meet some problem related to DP83822I 100 Mbps MII receive timing, the delay time T2 is out of the range written in the datasheet. Please refer to the waveform below.

In the waveform above, the yellow one is RX_CLK, the blue one is RX_D0, not sure if the delay time T2 here is refer to the rising edge of RX_CLK to the rising or falling edge of the RX_D0. If it's to the rising edge, then T2 is 5.6ns, out of the range 10~30us. If it's to the falling edge, it seems to be larger than 30us in the waveform. What may cause this to happen? Could you please give some comments on that?

Thanks.

Best Regards,

Livia