ID:11640 REFCLK pin "<text>" is placed in a RX Data Channel location. This feature is not supported in ES devices.

CAUSE: Using the receiver (RX) data pin as a REFCLK pin is supported only through Quartus Settings File (.qsf) assignments in production devices. The transceiver RX channel is not available as a data channel when the RX pin is used as a REFCLK pin.

ACTION: Select a production device and set the location assignment for the REFCLK pin in the required RX channel.