1 Design Framework for Partial Run-Time FPGA Reconfiguration

Partial reconfiguration (PR) reveals many opportunities for integration into FPGA design for potential system optimizations such as reduced area, increased performance, and increased functionality. Even though recent advances in Xilinx’s Virtex-4 and Virtex-5 FPGA devices and design tools significantly improve the practicality of incorporating PR, unfortunately, system designers largely lack sufficient guidance to design these systems. Efficient system design exploration and extensive manual floorplanning is required to fully enhance the capabilities of a system and/or optimize metrics such as power consumption, device quantity and size, designer productivity, and design re-use. To fully leverage PR, system designers must acquire a strong knowledge of the PR design flow as well as the low-level architectural details of their target device. In this paper, we propose design methodologies to assist designers in efficient PR system design and define frameworks to enable rapid system prototyping, enabling designers to harness the capabilities of PR without having to deal with many of the intricate details. Furthermore, we identify new opportunities for optimization, which are only made possible with the tile-based layout of the Virtex-4 and Virtex-5 FPGAs. 1