Abstract: An electronic design automation system provides optimization of RTL models of electronic designs, to produce detailed constraints and data precisely defining the requirements for the back-end flows leading to design fabrication. The system takes a RTL model of an electronic design and maps it into an efficient, high level hierarchical representation of the hardware implementation of the design. Automatic partitioning partitions the hardware representation into functional partitions, and creates a fully characterized performance envelope for a range of feasible implementations for each of the partitions, using accurate placement based wire load models. Chip-level optimization selects and refines physical implementations of the partitions to produce compacted, globally routed floorplans. Chip-level optimization iteratively invokes re-partitioning passes to refine the partitions and to recompute the feasible implementations.

Abstract: An electronic design automation system provides optimization of RTL models of electronic designs, to produce detailed constraints and data precisely defining the requirements for the back-end flows leading to design fabrication. The system takes a RTL model of an electronic design and maps it into an efficient, high level hierarchical representation of the hardware implementation of the design. Automatic partitioning partitions the hardware representation into functional partitions, and creates a fully characterized performance envelope for a range of feasible implementations for each of the partitions, using accurate placement based wire load models. Chip-level optimization selects and refines physical implementations of the partitions to produce compacted, globally routed floorplans. Chip-level optimization iteratively invokes re-partitioning passes to refine the partitions and to recompute the feasible implementations.

Abstract: An electronic design automation system provides optimization of RTL models of electronic designs, to produce detailed constraints and data precisely defining the requirements for the back-end flows leading to design fabrication. The system takes a RTL model of an electronic design and maps it into an efficient, high level hierarchical representation of the hardware implementation of the design. Automatic partitioning partitions the hardware representation into functional partitions, and creates a fully characterized performance envelope for a range of feasible implementations for each of the partitions, using accurate placement based wire load models. Chip-level optimization selects and refines physical implementations of the partitions to produce compacted, globally routed floorplans. Chip-level optimization iteratively invokes re-partitioning passes to refine the partitions and to recompute the feasible implementations.

Abstract: An electronic design automation system provides optimization of RTL models of electronic designs, to produce detailed constraints and data precisely defining the requirements for the back-end flows leading to design fabrication. The system takes an RTL model of an electronic design and maps it into an efficient, high level hierarchical representation of the hardware implementation of the design. Automatic partitioning partitions the hardware representation into functional partitions, and creates a fully characterized performance envelope for a range of feasible implementations for each of the partitions, using accurate placement based wire load models. Chip-level optimization selects and refines physical implementations of the partitions to produce compacted, globally routed floorplans. Chip-level optimization iteratively invokes re-partitioning passes to refine the partitions and to recompute the feasible implementations.

Abstract: A cursor control system and method for moving a cursor on a computer screen in response to movement of a ring over a keyboard. A ring contains a transmitter circuit which is activated by a switch positioned on the ring. A signal generated by the transmitter circuit is transmitted to a receiver attached to a computer keyboard. The receiver detects motion of the transmitter circuit over the keyboard and, in response, generates signals which are used to control the movement of the cursor on the computer screen.