Topics and Organization

Topics covered in this book and the flow of the book are as follows:

Part 1: Background and Comprehensive Overview. Provides an architectural perspective of the PCI Express technology by comparing and contrasting it with the PCI and PCI-X buses. It also introduces the major features of the PCI Express architecture.

Part 2: PCI Express Transaction Protocol. Includes packet format and field definition and use, along with transaction and link layer functions.

Part 3: Physical Layer Description. Describes the physical layer functions, link training and initialization, reset, and electrical signaling.

Part 4: Power-Related Topics. Discusses Power Budgeting and Power Management.

Part 5: Optional Topics. Discusses the major features of PCI Express that are optional, including Hot Plug and Expansion Card implementation details.

Part 6: PCI Express Configuration. Discusses the configuration process, accessing configuration space, and details the content and use of all configuration registers.

Appendix:

• Test, Debug, and Verification

• Markets & Applications for the PCI Express™ Architecture

• Implementing Intelligent Adapters and Multi-Host Systems With PCI Express™ Technology

• PCI Express Class Codes

• Legacy Support for Locking