The SEM controller initializes and manages the FPGA integrated silicon features for soft error mitigation and when included in a design, do not include any design constraints or options that would enable the built-in detection functions. For example, do not set POST_CRC, POST_CONFIG_CRC, or any other related constraints. Similarly, do not include options to disable GLUTMASK. The default value of YES is required to prevent false error detections by the SEM controller.