SPRUJ28E November 2021 – September 2024 AM68 , AM68A , TDA4AL-Q1 , TDA4VE-Q1 , TDA4VL-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: