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This paper presents a new generic system architecture and design methodology for the design, debugging and testing of complex systems-on-chip (SoC).Starting from a hierarchical generic system architecture, platforms for dedicated application scenarios will be customized. In order to be able to handle very complex submicron designs, the system is based on a globally asynchronous and locally synchronous (GALS) concept. The problem of the increasing functionality versus outer access capabilities ratio is faced by novel embedded and combined debugging and test structures. The integration of debugging possibilities is essential for an efficient co-design of SoC integrated hardware and software, especially for systems with integrated reconfigurable hardware parts.

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