The MAC function receives corrupt data packet when you enable the local loopback on MII.
This issue affects designs that contain Triple-Speed Ethernet MAC operating at 10/100-Mbps.
Type: Answers
Type: Errata
Area: Intellectual Property
MII Local Loopback Failure
Description
Workaround/Fix
No workaround.This issue is fixed in version 11.0 of the Triple-Speed Ethernet MegaCore function.