First, configure the channel attributes:
- Configure bit 7 of the DMA Channel Priority Set (DMAPRIOSET) or DMA Channel Priority Clear (DMAPRIOCLR) registers to set the channel to High priority or Default priority.
- Set bit 7 of the DMA Channel Primary Alternate Clear (DMAALTCLR) register to select the primary channel control structure for this transfer.
- Set bit 7 of the DMA Channel Useburst Clear (DMAUSEBURSTCLR) register to allow the µDMA controller to respond to single and burst requests.
- Set bit 7 of the DMA Channel Request Mask Clear (DMAREQMASKCLR) register to allow the µDMA controller to recognize requests for this channel.