SPRUJC6B October 2025 – April 2026 AM2752-Q1 , AM2754-Q1
Figure 12-139 shows DMA transmission.
Figure 12-139 DMA TransmissionIn IrDA mode, the transmission does not end immediately after the TX FIFO empties, at which point the last data byte, the CRC field, and the stop flag still must be transmitted; thus, the end of transmission occurs a few milliseconds after the UART_THR register empties.