The Runtime Loading tab of the Soft-Decision FEC GUI had been updated in Vivado 2018.2.
The information for the Runtime Loading tab in (PG256) does not match with the IP GUI:
- An additional read only parameter has been added, Physical Utilization.
The utilization of SD-FEC functional blocks for the specified code(s). The parameter value is automatically calculated by the IP GUI.
- The percentage loading parameters have been depreciated and removed from the GUI; Percentage_Loading, TD_PERCENT_LOAD, LD_PERCENT_LOAD & LE_PERCENT_LOAD.
When upgrading an IP instance from the previous revision and these parameters have been set to non-default values the parameters will be enabled in the GUI.
This is a known issue in 2018.2 (PG256), which will be fixed in the Vivado 2018.3 and later version.