SPRUJ55D September 2023 – July 2025 AM263P2 , AM263P2-Q1 , AM263P4 , AM263P4-Q1
Wake-up interrupt is a special interrupt that works differently from other interrupts. This interrupt is enabled when the RX_CTS_DSR_WAKE_UP_ENABLE bit of the Supplementary Control Register (SCR[4]) is set to 1. The IIR register is not modified when it occurs, SSR[1] must be checked to detect a wake-up event. When a wake-up event occurs, the only way to clear it is to reset SCR[4] to 0. Wake-up can also occur if the WER[7] TX_WAKEUP_EN is set to 1 and one of the following events occurs: