Cannot Simulate Auto-Rate Negotiation in CPRI IP Core VHDL Models that Target Cyclone IV GX Devices - Cannot Simulate Auto-Rate Negotiation in CPRI IP Core VHDL Models that Target Cyclone IV GX Devices Description If you generate a VHDL simulation model for your CPRI MegaCore function that targets a Cyclone IV GX device, you cannot use it to simulate auto-rate negotiation. This issue affects all CPRI MegaCore function VHDL simulation models with auto-rate negotiation enabled that target a Cyclone IV GX device This issue affects simulation only. Resolution This issue has no workaround. To simulate auto-rate negotiation, generate and simulate a Verilog HDL simulation model. This issue is fixed in version 12.0 of the CPRI MegaCore function. Custom Fields values: ['novalue'] Troubleshooting novalue True ['novalue'] ['FPGA Dev Tools Quartus II Software'] 12.0 11.0 ['Cyclone® IV FPGAs'] ['novalue'] ['novalue'] ['novalue'] - 2021-08-25