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An asynchronous dataflow FPGA architecture

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2 Author(s)
Teifel, J. ; Comput. Syst. Lab., Cornell Univ., Ithaca, NY, USA ; Manohar, R.

We discuss the design of a high-performance field programmable gate array (FPGA) architecture that efficiently prototypes asynchronous (clockless) logic. In this FPGA architecture, low-level application logic is described using asynchronous dataflow functions that obey a token-based compute model. We implement these dataflow functions using finely pipelined asynchronous circuits that achieve high computation rates. This asynchronous dataflow FPGA architecture maintains most of the performance benefits of a custom asynchronous design, while also providing postfabrication logic reconfigurability. We report results for two asynchronous dataflow FPGA designs that operate at up to 400 MHz in a typical TSMC 0.25 /spl mu/m CMOS process.

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Computers, IEEE Transactions on  (Volume:53 ,  Issue: 11 )