The Xilinx® soft error mitigation (XilSEM) library is a pre-configured, pre-verified solution to detect and optionally correct soft errors in Versal™ ACAP configuration memory. 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 possible system-level effect. Proper management of a soft error can increase reliability, availability, and reduces system maintenance and downtime. In most applications, soft errors can be ignored. The XilSEM library configuration options available through the CIPS IP core are shown in the following figure.
In CIPS IP v2.1, you can choose to enable or disable the error detection and correction capabilities of the XilSEM library as shown in Figure 1. In applications that require soft error mitigation, see Versal ACAP System Software Developers Guide (UG1304) for additional information about the XilSEM library prior to configuring it for use.