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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。
High-performance server systems, real-time embedded system RAS features such as higher system requirements, the need to design and development based on third generation PCI Express bus backplane high-speed digital circuit board cards, and these boards need to support hot-swappable Features. Hot-swappable PCI-based bus system design is actually hardware and software co-design work, especially in the design should strictly follow the relevant design specifications, it will become the system to support hot-swappable technology and to ensure that the system’s RAS features .