Error (177013): Cannot route from source HSSI reference clock divider output to the Receiver channel because the destination is in the wrong region - Error (177013): Cannot route from source HSSI reference clock divider output to the Receiver channel because the destination is in the wrong region Description You will see this error if you try and use a transceiver Rx pin as a reference clock when using Quartus® II software version 12.1 and earlier on Cyclone® V GX devices. Resolution You should use a dedicated transceiver REFCLK pin. Using an Rx pin a transceiver reference clock on Cyclone V GX devices will be supported in a future version of the Quartus II software. Custom Fields values: ['novalue'] Troubleshooting novalue False ['novalue'] ['FPGA Dev Tools Quartus II Software'] novalue 12.1 ['Cyclone® V GX FPGA'] ['novalue'] ['novalue'] ['novalue']