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PCI Express: Difference between revisions
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Reword to note about PCIe config
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(Reword to note about PCIe config) |
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==Extended Configuration Space==
The PCI Express bus extends the [[PCI#Configuration Space|Configuration Space]] from 256 bytes to 4096 bytes. This extended configuration space *cannot* be accessed using the legacy PCI method (through ports 0xCF8 and 0xCFC). Instead, an [[#Enhanced Configuration Mechanism]] is provided.
However, the legacy configuration space for PCI-E devices can still be accessed using the latter.
===Changes from the PCI Configuration Space===
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