ID:15917 Input port <text> of PLL "<name>" must be connected to the <text> output of the same PLL.

CAUSE: When the operation_mode parameter of the specified PLL is set to one of: normal, source_synchronous, no_compensation, or zero_delay_buffer, the fbin input of the specified PLL must be connected to the fbout output of the same PLL.

ACTION: Make sure the fbin input and the fbout output of the specified PLL are connected properly.