3.2 Event Notification

Ensure there is a proper event notification configuration for an application. This includes all application-specific events, like a notification of the EOT, and general system events, like a power-on event (SYS_RDY) and error event (SYS_ERR). The system events identify specific events and give the capability to react on it, for example, an unexpected undervoltage below 1.9V followed by restoring of target voltage. This scenario triggers a POR, and is indicated by a system ready flag (SYS_RDY). Without the SYS_RDY event activated, this event cannot be detected and the application might get stuck in an unexpected state if the host controller does not react to the event. Another example is the occurrence of an unexpected system error. Without the SYS_ERR event activated, the system can be in an undefined state. Activated system events help during unexpected events by appropriately reacting and, therefore, help in designing a robust application.