I'm reading datasheet of AD7386 and do not understand CRC Example in Table 16. Why the first 8 MLB invert from Data to Process Data? Is there something I missed?
Hi, EvernessW .
This is for the CRC checksum calculation of the AD7386. The 16-bit data of the two channels are combined which produces a 32-bit data. The data are shifted 8 times, just like in the figure provided, to create the processed data. The processed data resulted to the inversion of the first 8 bits of the data, along with the eight logic 0s at the end. This process is needed to an XOR, to create/produce the output of the CRC.
Regards,
Jo
