ADF digital filter control register 0
| DFLTEN | DFLT0 enable |
| DMAEN | DMA requests enable |
| FTH | RXFIFO threshold selection |
| ACQMOD | DFLT0 trigger mode |
| TRGSRC | DFLT0 trigger signal selection |
| NBDIS | Number of samples to be discarded |
| DFLTRUN | DFLT0 run status flag |
| DFLTACTIVE | DFLT0 active flag |