DMA channel configuration register (DMA_C3CTRL)
| CHEN | Channel enable |
| FDTIEN | Transfer complete interrupt enable |
| HDTIEN | Half transfer interrupt enable |
| DTERRIEN | Transfer error interrupt enable |
| DTD | Data transfer direction |
| LM | Loop mode |
| PINCM | Peripheral increment mode |
| MINCM | Memory increment mode |
| PWIDTH | Peripheral data bit width |
| MWIDTH | Memory data bit width |
| CHPL | Channel Priority level |
| M2M | Memory to memory mode |