基于PCI Express总线系统的热插拔设计

Design of Hot-swap in System Based PCI Express

在高性能的服务器系统、实时的嵌入式系统等RAS特性要求较高的系统中,需要设计开发基于第三代PCI Express总线背板的高速数字电路板卡,并且这些板卡需要支持热插拔功能。基于PCI Express总线系统的热插拔设计实际上是硬件和软件的协同设计工作,特别是在设计中要严格遵循相关设计规范,才成使系统能够支持热插拔技术并能保证系统的RAS特性。

In high performance sever systems and embedded system with real time, and so on, in these systems which need RAS characteristic, high speed PCB of PCI Express bus motherboard-based design & research are used. Furthermore, these circuit cards may support hot-swap. The design of hot-swap based PCI Express bus requires hardware design cooperate with software design, the designer must follow correlative specifications, then the systems support hot-swap and guarantee RAS characteristic.