FIFO_SRC Register: FIFO Source Register Read only register Default value: 0x00 7 WTM: Watermark status. 0: FIFO filling is lower than WTM level (Default) 1: FIFO filling is equal or higher than WTM level 6 OVRN_FIFO: Overrun bit status. 0: FIFO is not completely filled (Default) 1: FIFO is completely filled 5 EMPTY: Overrun bit status. 0: FIFO not empty (Default) 1: FIFO empty 4:0 FSS: Number of samples stored in the FIFO - 1