It is suggested in the AD7175 datasheet that, "Reading the ID register is the recommended method for verifying correct communication with the device.".
Is this indeed the recommended method over say, appending the status register and CRC to each sample? Seems that periodically reading the ID register is redundant if already checking the CRC with each ADC conversion read.
Can you please confirm if there is something I am missing in which "Reading the ID register" is indeed the safest method?