To access the RS-FEC only from the 100G Ethernet Hard IP, select the Enable RS-FEC Transcode Bypass option and also select the appropriate CMAC Core Selection from the RS-FEC Transcode Bypass tab.
In this mode, the RS-FEC IP present inside the 100G Ethernet Hard IP cor e can be accessed and used. In this case, the 100G Ethernet IP cor e and GT functionalities are not available, and the other tab options are disabled.
If you deselect the Enable RS-FEC Transcode Bypass option, the other tab options are enabled with the default values.