25.7.8.9 CRC Data

The CHCRCDATk.CRCDAT provides the initialization value for both CRC and checksum calculations before the block transfer starts. At the end of the block transfer the result can be read from CRCDAT. If the calculations are to take place over multiple block transfers, provide a initial value before the first block transfer. Do not update the CRCDAT register between block transfers. Once all the block transfers are completed, the CRCDAT will contain the resulting value.