This Chapter

This chapter provides a description of:

• The PCI Express Capability register set in a function's PCI-compatible configuration space.

• The optional PCI Express Extended Capabilities register sets in a function's extended configuration space:

  - The Advanced Error Reporting Capability register set.

  - Virtual Channel Capability register set.

  - Device Serial Number Capability register set.

  - Power Budgeting Capability register set.

• RCRBs.