24.3.2.4.5 Flushing the Receive Buffer
If the receive buffer has to be flushed during normal operation, read the DATA location (USART.RXDATAH and USART.RXDATAL registers) until the Receive Complete Interrupt Flag (RXCIF in USART.RXDATAH) is cleared.
If the receive buffer has to be flushed during normal operation, read the DATA location (USART.RXDATAH and USART.RXDATAL registers) until the Receive Complete Interrupt Flag (RXCIF in USART.RXDATAH) is cleared.
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