Abstract: CRC is Cyclic Redundancy Check, it is used for generating check bits for detecting data transmission errors in the digital communication networks. The 9-bit CRC polynomial is used for the generation of CRC value . In this paper we have implemented, the generation of CRC value for a 16 bit serial data by using 9 bit polynomial. The CRC bit can be generated for any 16 bit data with any 9 bit polynomial at the time of transmission.