Formalized three-layer system-level model and reuse methodology for embedded data-dominated applications

In embedded data-dominated applications, a global system-level data transfe r and storage exploration phase Is crucial in obtaining a cost- and perform ance-efficient solution. We have developed a novel formalism to describe re usable blocks such that the essential part of the design exploration freedo m is retained, This formalism is the basis for a system-level reuse methodo logy which allows reusing large parts of the design as heavily optimized st ructural VHDL or assembly code and describes the costly data access-related constructs at higher levels in the code hierarchy. Compared to a reuse app roach based on tired blocks, considerable power and area savings can be obt ained, as demonstrated on real-life video and modem applications.