该文档是进行VxWorks下PCI驱动开发的基础主要介绍PCI总线配置空间，如何查看和读取PCI配置相关信息，最后有VxWorks下相关的示例代码。

关键字: PCI总线 vxworks PCI配置空间 内存映射 PlxPCI9056

-This document is the basis of the VxWorks PCI driver development introduces the PCI bus configuration space, how to view and read the PCI configuration information, and finally the sample code in the VxWorks.