I am looking at data sheet but I am not sure about the data width of ad7609 for SPI.
The configuration :
- Serial interface mode
- only use DoutA
- I believe Polarity=1 and Phase=0
- 100Khz clock rate
what is data width??
In parallel mode, it seems to be 16bits, but in case of serial mode i am not sure whether it is 16 bits or 18 bits