ATM PON is important to the development of broadband access networks due to the advantages such as low cost

great performances

flexible access and so on. In this paper

the frame designs of ATM PON TC layer chips and some techniques of the integrated designs have been presented in detail. The TC layer chips include the OLT TC layer chip and the ONU TC layer chip. The paper has also presented the key techniques which can drop the work speed and power of the integrated circuits

such as the parallel scrambling

the parallel HEC generating and checking

the parallel cell delimiting and the distributed sample descrambling.