This contribution provides a state-of-the-art description of security issues on FPGAs from a system perspectives. We consider the potential security problems of FPGAs and propose some countermeasure for the existing drawbacks of FPGAs. Even though there have been many contributions dealing with the algorithmic aspects of cryptographic schemes implemented on FPGAs, this contribution is one of th...

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The Xilinx FPGA architecture is very regular and gatearray-like, but it is not a simple sea-of-gates. An understanding of the architecture and the resources it provides can make designs become more efficient in both speed and density. This Application Note focuses on the features of the XC4000 architecture and its supporting software that improve design efficiency. It also describes advanced de...

| Recently, a lot of recon gurable systems (RSs) utilizing FPGAs have been reported. The aim is to achieve high performance with low production cost, or to produce non-\von Neumann" machines. In this paper, we overviews RSs. FPGAs, the key components of RSs, are introduced. Second, we categorize RSs into several types. Next, applications are described. Then, hot topics related to RSs are mentio...

This paper presents a new family of architectures for multi-cycle area-efficient evaluation of elementary and composite functions, and an exploration of the design tradeoffs for implementation on Field Programmable Gate Arrays (FPGAs). The method is exemplified with two common functions, sine and power-of-2. To test the performance of each design, we compare the proposed architecture to an esta...