We're using an external digital step attenuator on an ORx input of our AD9375 based design, but I'm struggling to find conclusive information on interfacing this:
The user guide (UG-992) states that the external attenuator control pins for ORx are GPIO_3P3_11 to GPIO_3P3_7 however this is 5 bits - the control word is 4 bits. Should this be 8 to 11 instead? Presumably the MSB would be GPIO_3P3_11?
Many thanks in advance,