Vivado Design Suite Versions
The LVAUX I/O standards and DDR4 SDRAM (MIG) in the IP catalog are fully supported by Vivado Design Suite 2019.2 or later for XQ ruggedized UltraScale+ devices only.
I/O Buffer Information Specification Models
I/O buffer information specification (IBIS) models for the LVAUX I/O standards are not supported. For simulating LVAUX I/O behavior, you can use the IBIS models for the non-LVAUX I/O standards listed in the Table 1.