A generic and multi-role controller structure for data and communication exchanges is disclosed. In one aspect, the structure assumes the form of a single component and includes a capability forming a generic data and communication exchange controller, associated with at least: a capability forming a data storage/exchange buffer, a capability forming multiple connection interfaces to several data production/consumption units, one connection interface being associated with one data production/consumption unit, a capability forming multiple connection interfaces with several external data communication buses, and one connection interface being associated with one external data communication bus.