Other Parts Discussed in Thread: TIDA-00204
Datasheet for DP83867IR states max input (Vpp) is 1.9V.
However TIDA-00204(https://www.ti.com/tool/TIDA-00204) Shows the device being driven by 3.3V clocks (see below excerpts from schematic). Can you confirm if this is an error in the reference design, and this should be a 1.8V clock.