Standard Hot Plug Controller Signaling Interface
Figure 17-3 on page 669 represents a more detailed view of the logic within root and switch ports, along with the signals routed between the slot and port. The importance of the standardized Hot Plug Controller is the common software interface that allows the device driver to be integrated into operating systems.
Figure 17-3. Hot Plug Control Functions within a Switch
The PCI Express specification in conjunction with the Card ElectroMechanical (CEM) specification define the slot signals and the support required for Hot Plug PCI Express. Following is a list of required and optional port interface ...
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