The CC1100, CC1100E, CC1101, CC1110Fx, CC1111Fx, CC1150, CC2500, CC2510Fx, CC2511Fx, and CC2550 all
implement FEC encoding and decoding in HW. The purpose of this design note is to describe how one can implement the
same  FEC  decoding  in  SW.  This  is  in particular very important for the CC430Fx device,  which  has  the  same  radio  as  the CC1101  and  CC1110/11Fx  but  without HW FEC included. This design note is not meant as a tutorial on FEC and it will not cover the FEC encoding, as it is described in DN504.

http://www.ti.com/lit/swra313