SPRUHZ7K August 2015 – April 2024 AM5706 , AM5708 , AM5716 , AM5718 , AM5718-HIREL
The PRUSS_UART0 can be placed in the diagnostic mode using the LOOP bit in the modem control register - PRUSS_UART_MODEM_CONTROL_REGISTER, which internally connects the PRUSS_UART0 output back to the PRUSS_UART0's input. In this mode, the transmit and receive data paths, the transmitter and receiver interrupts, and the modem control interrupts can be verified without connecting to another UART.