SLAU723A October 2017 – October 2018 MSP432E401Y , MSP432E411Y
Channel assignments for each µDMA channel can be changed using the DMACHMAPn registers. Each 4-bit field represents a µDMA channel. For channel assignments, see the device-specific data sheet.
For example, to use UART1 RX on channel 8, configure the CH8SEL bit in the DMACHMAP1 register to be 0x1. If a peripheral is enabled on two different channels, the µDMA channel that has the highest priority for that peripheral takes precedence. Thus, if UART 1 RX is enabled on both channel 8 and channel 22, the UART1 RX channel 22 priority needs to be lowered before channel 8 UART1 RX can be accessed by the µDMA.