SPRUHZ7K August 2015 – April 2024 AM5706 , AM5708 , AM5716 , AM5718 , AM5718-HIREL
The PRUSS_UART0 can employ autoflow control by connecting the PRUSS_UART0_CTS and PRUSS_UART0_RTS signals. The PRUSS_UART0_CTS input must be active before the transmitter FIFO can transmit data. The PRUSS_UART0_RTS becomes active when the receiver needs more data and notifies the sending device. When PRUSS_UART0_RTS is connected to PRUSS_UART0_CTS, data transmission does not occur unless the receiver FIFO has space for the data. Therefore, when two UARTs are connected as shown in Figure 30-41 with autoflow enabled, overrun errors are eliminated.
Figure 30-41 UART Interface Using Autoflow Diagram