I would like to wake up the processor from the deep sleep mode with the LIS2DW12 wakeup event. After the interrupt signal is generated from the INT1 pin, the processor will be waked up. However, it needs more than 1 second to power down LIS2DW12. During this 1 second period, there will be another interrupt signal generated and the WU_IA bit is read as 1. Once the processor goes to the deep sleep mode after processing some work, it will be waked up immediately by this stored WU_IA. To my knowledge, the WU_IA bit should be cleared once it is read. However, I tried to read STATUS (27h), WAKE_UP_SRC (38h) and ALL_INT_SRC (3Bh), but it does not work. Could someone know how to clear the WU_IA bit without waking up the processor? Thank you so much.
