First,the paper presents conceptions,characteristics and structures of broadband metropolitan area networks,then presents main construction plan for broadband metropolitan area networks such as IP over ATM,IP over SDH,IP over WDM/DWDM,IP over RPR,IP over GE,IP over MSPP,finally presents the principle for construction plan and applications in the electric trades.

Introduction of new internet protocol IPV6;

IP core design of Russian military multi-channel serial bus based on FPGA;

The application of IP core-based FIR filter to digital orthogonal transformation;

Design and FPGA Implementation of a I2C Master Controller IP Core;