Part Number: DP83825I
Hi Team,
The customer enters the clock into the MAC and PHY(DP83825I) by distributing the crystal oscillator(50MHz).
Communication is unstable at this rate, but it will be improved by adding a damping resistor for each the MAC and PHY.
They are controlling the impedance.
Communication is unstable even if the clock buffer put instead of a damping resistor, so they can't help putting a damping resistor.
They think there is a root cause.
Can you think of anything that might have caused it?
They use at RMII Slave Mode.
Best Regards,
