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Many system-on-a-chip devices would benefit from the inclusion of reprogrammable logic on the silicon die, as it can add general computing ability, provide run-time reconfigurability, or even be used for post-fabrication modifications. Also, by catering the logic to the SoC domain, additional area and delay gains can be achieved over current, more general reconfigurable fabrics. This paper presents tools that automate the creation of domain-specific CPLDs for SoC, including an architecture generator for finding appropriate architectures and a layout generator for creating efficient layouts. By tailoring CPLDs to the domains that they are supporting, we provide results that beat representative fixed architectures by 5.6× to 11.9× on average in terms of area-delay product.
Date of Conference: 24-26 Aug. 2005