000034184 - Design Advisory for UltraScale+ Memory Interfaces and High Speed SelectIO Interfaces - Crosstalk Issue on RIU_CLK Can Corrupt RIU Registers

Release Date
1.0 English

The Vivado cross talk (Xtalk) issue is resolved in the 2022.2 version of Vivado and patches are available for earlier versions of Vivado.

The Vivado fix analyses the paths and will insert a delay on one path to ensure that they cannot toggle with the RIU clock. A bug in Vivado versions up to 2022.1 results in the fix not being applied correctly.

It is recommended to apply the Vivado patch attached here to avoid the potential of this issue for both new designs and updates to existing designs (where there is any rerun of implementation).