The radio bridge is a custom peripheral which provides the external connections for the radio controller core. The bridge contains very little logic; its only job is to tie the radio controller's ports to whichever daughtercard slots contain WARP radio boards. Abstracting these connections to a separate peripheral allows the use of a single radio controller core with arbitrary arrangements of radio boards.
The radio bridge is a standard EDK peripheral and is required when using the radio controller. Up to four instances of the radio bridge core can be included in a hardware system. If the bridges are enabled when building a new project through Base System Builder, the core's connections and pin constraints will be handled automatically.
The latest source for the radio bridge is available in the repository.