Driven Design Of Multicast Group Management And SPI Interface In HINOC System

The broadcast television networks,which is one of the basic network of the triple play,is an important national information infrastructure.In order to meet the needs of the triple play and make full use of the cable resources,HINOC(High Performance Network Over Coax)was proposed by our scientific and technological workers according to national conditions,which can provide high-speed access and support multi-service.Multicast driver module and SPI driver module were deeply researched in this dissertation.Firstly,the basic concepts and mechanisms of HINOC was briefly introduced.In addition,multicast protocols was presented,based on the MAC protocol and the IGMP Snooping protocol,multicast group management solutions of HINOC were put forward and multicast driver was implemented on IXP435 platform.Finally,the SPI interface and the driver on HINOC SOC system were designed.By the SPI bus,CPU can control low-IF chip in HINOC equipment to accomplish communication between the controller and the equipment.The simulation results demonstrated that HINOC system well support multicast module and SPI module.