Version Found: DDR4 v2.2
Version Resolved: See (Xilinx Answer 69035)
When using a x16 Wide custom part (that has a component width of 8) the following error is seen when data width is set to 80:
There is currently no work-around for this issue.
We do support the MT40A1G16WBU-083E natively which can utilize a data width of 80 bits.