PCI Express System Architecture

Address Translation

This section provides an in-depth description of how systems that use non-transparent bridges communicate using address translation. We provide details about the mechanism by which systems determine not only the size of the memory allocated, but also about how memory pointers are employed. Implementations using both Direct Address Translation as well as Lookup Table Based Address Translation are discussed. By using the same standardized architectural implementation of non transparent bridging popularized in the PCI paradigm into the PCI Express environment, interconnect vendors can speed market adoption of PCI Express into markets requiring intelligent adapters, host failover and multihost capabilities.

The transparent bridge ...