Critical Issue
Description
Simulation fails when you enable the SGMII mode in designs that contain SGMII PCS variations with GXB transceiver and target HardCopy IV GX devices.
This issue affects all HardCopy IV GX designs that contain GXB transceiver blocks.
Resolution
Use 10/100/1000 Mbps Ethernet MAC only with GMII/MII or RGMII for 10/100 Mbps half duplex mode operation.This issue will be fixed in a future version of the Triple Speed Ethernet MegaCore function.