The paper focuses on coarse-grained dynamically reconfigurable array architectures promising performance and flexibility for different challenging application areas, e. g. future broadband mobile communication systems. Here, new and flexible microelectronic architectures are required solving various problems that stem from access mechanisms, energy conservation, error rate, transmission speed characteristics of the wireless links and mobility aspects. This paper sketches first the major motivation for developing flexible microelectronic System-onChip (SoC) solutions for the digital baseband processing in future mobile radio devices. The paper introduces a new parallel and dynamically reconfigurable hardware architecture tailored to this application area. The focus of this contribution is the efficient communication and dynamic reconfiguration realization for such reconfigurable array architectures, which is crucial for their overall performance and flexibility.