30.3.10.19 CRCPOLY SFR Description

The CRCPOLY holds the desired Polynomial for the CRC. The highest bit of the polynomial is not contained in CRCPOLY but is always set to one in the CRC logic. The lowest bit, CRCPOLY[0], is always one and not writable. PLEN32 controls the polynomial size. When selecting CRC-16, bit 16 and above are not used.