SLAU723A October 2017 – October 2018 MSP432E401Y , MSP432E411Y
Any GPIO pin can be configured to be an external trigger for the μDMA using the GPIO DMA Control (GPIODMACTL) register. If any GPIO is configured as a non-masked interrupt pin (the appropriate bit of GPIOIM is set), a dma_req signal is sent to the µDMA . If the μDMA is configured to start a transfer based on the GPIO signal, a transfer is initiated. When transfer is complete, the dma_done signal is sent from the µDMA to the GPIO and is reported as a DMA (done) interrupt in the GPIORIS register.