Why are my "rx_invpolarity" and "tx_invpolarity" bits unconnected at the top-level of my Hard XAUI Phy in my Arria II GX or Stratix IV GX design? - Why are my "rx_invpolarity" and "tx_invpolarity" bits unconnected at the top-level of my Hard XAUI Phy in my Arria II GX or Stratix IV GX design? Description Rx_invpolarity and Tx_invpolarity bits unconnected at top-level of Hard XAUI Phy in Arria ® II GX and Stratix ® IV GX due to a parameter mismatch within the Megawizard ™ -generated files. Resolution Currently, there is a parameter mismatch in the Mega-wizard generated hxaui.v file. This is scheduled to be fixed in an upcoming release of Quartus ® . As a workaround, simply edit the hxaui.v file. "Use_control_and_status_ports" should be defaulted to 1, while "external_pma_ctrl_reconf" should be defaulted to 0. Furthermore, edit this line: if (use_control_and_status_ports == "true" & external_pma_ctrl_reconf == "false" ) begin: use_cs_ports_true To read: if (use_control_and_status_ports == 1 & external_pma_ctrl_reconf == 0 ) begin: use_cs_ports_true Custom Fields values: ['novalue'] Troubleshooting novalue False ['novalue'] ['FPGA Dev Tools Quartus II Software'] novalue 11.1.2 ['Arria® II FPGAs', 'Arria® II GX FPGA', 'Stratix® IV GX FPGA'] ['novalue'] ['novalue'] ['novalue']