| SW_FSTEP | frequency step for CW generator can be used to adjust the frequency |
| SW_TONE_EN | 1: enable CW generator 0: disable CW generator |
| DEBUG_BIT_SEL | |
| DAC_DIG_FORCE | 1: DAC1 & DAC2 use DMA 0: DAC1 & DAC2 do not use DMA |
| DAC_CLK_FORCE_LOW | 1: force PDAC_CLK to low |
| DAC_CLK_FORCE_HIGH | 1: force PDAC_CLK to high |
| DAC_CLK_INV | 1: invert PDAC_CLK |