On the Receiver settings tab of the Parameter Settings page of the ALTLVDS_RX MegaWizard Plug-In Manager, if you turn on Use ‘rx_channel_data_align’ input port, generation fails with a message similar to the following:
Error: Port rx_data_align_reset is being set to the
state USED which is incompatible with the current settings of IMPLEMENT_IN_LES(OFF), INTENDED_DEVICE_FAMILY(Stratix
IV), rx_data_align(UNDEFINED). The legal state is UNUSED.
Turn off Use ‘rx_channel_data_align’ input port.