The present version of the ADIS16460 datasheet (revision 0) says that there is a CRC-16 code included in the burst-ready sequence. This is not correct. The "check code" is actually a checksum. Please see the following graphic, which offers a correction version, which will be in the next revision of the ADIS16460 datasheet.
This issue has been addressed in Rev A of the datasheet, which is now live at the following URL: