reset value is 0 0001, this value is reserved and should not be used according to the datasheet. should the reset value be changed to some valid setting? In my opinion, the reset value should normally be a valid value. Page 0 / Register 60: DAC Instruction Set
D4–D0 R/W 00 0001 0 0000: Reserved. Write only reset value. 0 0001–0 0011: Reserved. Do not use 0 0100: DAC Signal Processing Block PRB_P4 0 0101: DAC Signal Processing Block PRB_P5 0 0110: DAC Signal Processing Block PRB_P6 0 0111–0 1011: Reserved. Do not use 0 1100: DAC Signal Processing Block PRB_P12 0 1101: DAC Signal Processing Block PRB_P13 0 1110: DAC Signal Processing Block PRB_P14 0 1111: DAC Signal Processing Block PRB_P15 1 0000: DAC Signal Processing Block PRB_P16 1 0001–1 0011: Reserved. Do not use. 1 0100: DAC Signal Processing Block PRB_P20 1 0101: DAC Signal Processing Block PRB_P21 1 0110: DAC Signal Processing Block PRB_P22 1 0111–1 1111: Reserved. Do not use.