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On Optimum Switch Box Designs for 2-D FPGAs

An fpga switch box is said to be hyperuniversal if it

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Unformatted text preview: expensive in FPGA chips, it is clearly desirable to design switch boxes (S-boxes) with maximized routability and minimum number of programmable routing switches. In [6] a so called Universal Switch Module (USM) structure, with switches, has been which is a -way S-box of density proposed. However, this model only accommodates -pin nets, therefore designing a general S-box for all kinds of nets is important and necessary. An FPGA switch box is said to be hyperuniversal if it can detailed route all possible multi-pin net topologies satisfying the global routing density constraints. It is optimum if it is hyper-universal and the number of switches inside is minimum. It has been shown that if the net topology is restricted to 2-pin nets, then a 2-D (4-way) switch box can be built to be universal with only 6W switches, where W is the global routing channel density. As the routing resource is relatively expensive in FPGA chips, searching for optimum switch box designs is clearly a topic with both theoretical challenges and immense commerc...
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