https://docs.amd.com/r/en-US/am010-versal-selectio/X5IO-IOB-Supported-Differential-Standards-and-Attributes?contentId=Up7Qgx5X_zWs2U42xrHpiA
X5IO IOB Supported Differential Standards and Attributes - X5IO IOB Supported Differential...
DIFF_SSTL and DIFF_HSTL The stub-series terminated logic (SSTL) for 1.2V (DIFF_SSTL12), 1.1V (DIFF_SSTL11), and 1.0V (DIFF_SSTL10) are differential I/O...
iobsupporteddifferentialstandardsattributes