Peripheral component interconnect(PCI)bus belongs to the local bus category of the processor system,as an extension of the system bus,the main purpose of PCI bus is to connect the processor and external devices.Since the PCI bus specification was proposed,it has been rapidly recognized and promoted by the majority of manu-facturers,and has always occupied an important position in the processor architecture.From the perspective of soft-ware use,the spatial configuration of PCI bus is an important content.By analyzing the basic principle of PCI bus space configuration,and combining with the specific requirements of PCI device space configuration under PPC processor architecture,this paper introduces the PCI configuration principle and technical implementation details at the software use level in detail,and gives the relevant example code.
关键词
PCI总线/PCI空间配置/PPC处理器架构
Key words
PCI bus/PCI space configuration/PPC processor architecture
维普
万方数据