摘要
介绍了一种基于PCI总线的用于接收MPEG-2标准TS流的DVB-T数据接收卡的设计方法,给出了接收卡的结构框图,并重点描述了PLX公司的标准接口芯片PCI9030的PCI配置寄存器和局部配置寄存器及其初始化,以及串行EEPROM的编程,并给出了具体配置实例,实现局部地址空间到PCI地址空间的映射,以便于驱动程序将局部地址空间的数据读入主机内存,用于上层应用程序进行解复用、解码等处理。
This paper introduces a PCI buses based design method of the DVB-T data-receiving card which is used to receive the transport stream of the MPEG-2 standard. It also presents the structure-frame of the card. Emphasis is put on the configuration and initialization of the PCI configuration registers and local configuration registers of the standard accesses chip PCI9030 produced by PLX Corporation. Serial EEPROM programming is also discussed with some configuration examples given. The mapping of local address space to PCI address space is realized, so that the driver program can read data from the local address space to the memory of the host. It is used for de-multiplying and decoding the application program.
出处
《电子科技》
2005年第7期26-31,共6页
Electronic Science and Technology
