571M 6521D/71M 6521F Energy Meter IC Datasheet [EB/OL]. http: //www. fineprint, cn.
6Talpin Jean--Pierre, Guernic Paul. A Compositional Behavioral Modeling Framework for Embedded System Design and Conformance Cheeking [J]. International Journal of Parallel Programming, Dec, 2005, 33 (6): 23-25.