Hi team,
Customer use DP83867 communicating with their CPU iMX6DL, and use RGMII mode. The voltage of VDDIO is 2.5V. the waveform as below:
Blue is TXD singal; yellow is RXD signal, the VDDIO voltage is 2.5V. you can see that the RXD voltage only have 1.36V. could you give some ideas about this?
Is it because the driving capability is not enough? do you have some suggestions? thank you. here is the schematic of customer.