PCIE IP 配置空间寄存器访问说明
目录
1 PCI 规范中对于 capablity 的说明..............................................................................2
1.1 是否有 capability 先看 status register(偏移 08h).............................................2
1.2 PCI 规范中对 Capabilities List 的解释............................................................3
2 PCIE 规范中的 Capability..........................................................................................5
3 Capability ID 定义......................................................................................................6
3.1 PCI Capability ID 定义.....................................................................................6
3.2 PCIE 2.0 规范定义的 Capability ID.................................................................7
4 IP 寄存器定义.............................................................................................................9
4.1 3 类寄存器........................................................................................................9
4.1.1 PCI Express extended capability registers............................................10
4.1.2 Port logic 寄存器:起始地址 0x700....................................................11
4.2 Sticky 寄存器的属性定义..............................................................................11
评论0