This document describes how to effectively manage the operating states and modes of CR95HF and STRFNFCA devices to define an appropriate wakeup condition to reduce power consumption. CR95HF and STRFNFCA devices have two main functional domains. In Active mode, the devices can communicate with a host using one of the serial interfaces (UART or SPI) or with RFID tags using its RF capabilities. In Wait for Event (WFE) mode, the device remains quiescent while waiting for an external event. In this mode, a very low level of power consumption can be achieved. Application engineers can manage the wakeup conditions to optimize wakeup time or system power consumption.