Conventional PCI 2.2

Conventional PCI 2.2 defines the PCI hardware environment including the protocol, electrical, mechanical and configuration specifications for the PCI interconnect components and expansion boards. Conventional PCI specification rev. 2.2 supersedes rev. 2.1. Seventeen ECRs were incorporated into the specification, including six mechanical ECRs, 3.3 aux, Message Signaled Interrupt, and Spread Spectrum Clock. All cache support was removed and the specification was edited for readability. If you have additional questions about Conventional PCI 2.2, please see the FAQ in our Newsroom. All specifications are available for download by members. Non-members have the ability to obtain specifications by purchasing them.

The following document explains the differences between 2.1 and 2.2 PCI specifications.

• 2.1 to 2.2 Change Summary (13k PDF)

Members-only download:

• PCI Local Bus Specification Rev. 2.2 (3.4MB ZIP)
• Appendix D -- Class codes updates (61k PDF)
• Appendix H -- Capability Ids updates (16k PDF)

Non-members:

• Ordering information

Members and Non-members download:

• Approved PCI 2.2 Errata (52k PDF)
• Addition of the SMBus to the PCI Connector ECN (56k PDF)
• Power Valid to Reset High-Timing specification ECN (24k PDF)
• Low Profile PCI card ECN (97k PDF)
• Minimum PCB characteristic Impedance for Expansion Cards ECN (9k PDF)

Compliance Checklist:

• PCI 2.2 Compliance Checklist (485k Word DOC)