KEYWORDS: Logic, Computer programming, Radon, Switches, Clocks, System on a chip, Computer aided design, Multiplexers, Standards development, Digital electronics
Non-rectangular cores of standard-cell-based reconfigurable logic can be used to fill space left on System-on-Chips,
thereby providing the system with hardware reconfigurability. The proposed architecture for a non-rectangular
reconfigurable core is based on a fixed set of blocks that implement logic functions, interconnections and configurable
switching. The basic blocks connect by abutment to form clusters and clusters abut to form a complete reconfigurable
core. A software tool was created to generate a gate-level netlist and the floorplan data of the reconfigurable logic core
together with a basic testbench. Cores with non-rectangular shapes were created using 90 nm and 45 nm standard-cell
technologies and validated by simulation. The results demonstrate the feasibility of a flexible, technology-independent
architecture for non-rectangular reconfigurable logic cores that can be physically implemented using a standard digital
design flow.
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