USCI triggering the DMA
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For the F5438 there is no trigger associated with some USCI channels, such as A2,B2 as present in the MSP430F5438. This was also the case in previous 4xx families as well.
For example in some devices USCI_B1 had no DMA trigger associated with it. The best place to look for whether or not a trigger exists for the is in the device D/s (See below image).
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