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Constant evolution of norms and applications, usually implemented on system-on-chip (SOC), increases architecture performance and exibility requirements. Current architectures are consequently becoming more complex and difcult to develop. One of the solutions is to develop design frameworks based on high-level architecture description languages (ADL). These ADLs are useful for a rapid description of the hardware that should be implemented on an architecture. Designers can use ADL for the development of generic frontend tools. Our framework aims at designing dynamically recongurable architecture with the help of an ADL. This paper presents xMAML, an architecture description language dedicated to the instantiation of dynamically recongurable heterogeneous computing units. From this ADL, a synthesizable model is produced after exploration, simulation and validation phases. As proof of concept, exploration for a WCDMA receiver on two dynamically recongurable architectures is presented.