What is the initial value of the AD7864 channel select register?

What is the initial value of the AD7864 channel select register?

 

 

The customer has not set the logical state of DB0 from DB3. (From the beginning, RD and CS are set low and WR is set high).

 

Since the logic from DB3 to DB0 has not been set, I thought that the conversion sequence was undecided.

However, we will confirm it because the customer told us that Logic High was detected.

 

Best Regards