When importing a slave only FSL IP using CIP Wizard, it cannot find the FSL_S_Clk port even though it exists in the HDL file. The FSL_S_Clk port is then regarded as a user I/O port.
MPD file is changed from:
PORT FSL_S_Clk = FSL_S_Clk, DIR=O, SIGIS=Clk, BUS=SFSL
PORT FSL_S_Clk = "", DIR = O, SIGIS = Clk