PL Soft Error Mitigation

Versal ACAP Technical Reference Manual (AM011)

Document ID
AM011
Release Date
2022-04-26
Revision
1.4 English

The Versal ACAP PMC hardware supports the ability to validate the integrity of the device configuration and perform readback of configuration data (in the background) using the Xilinx soft error mitigation library.

The Xilinx Soft Error Mitigation (XilSEM) library is a pre-configured, pre-verified solution to detect and optionally correct soft errors in the configuration memory of Versal ACAPs. A soft error is caused by ionizing radiation and is extremely uncommon in commercial terrestrial operating environments. While a soft error does not damage the device, it carries a small statistical possibility of transiently altering the device behavior.

The XilSEM library does not prevent soft errors; however, it provides a method to better manage the possible system-level effect. Proper management of a soft error can increase reliability and availability, and reduce system maintenance and downtime. In most applications, soft errors can be ignored. In applications where a soft error cannot be ignored, see the OS and Libraries Document Collection (UG643) for additional information about the XilSEM library prior to configuring it for use through the CIPS IP core.