Abstract: One embodiment of the invention allows a designer to quickly and efficiently obtain a simulation model for a new integrated circuit implementation of a circuit design from the PLD simulation model for that circuit design. The designer begins with the simulation model of the PLD and back annotates the simulation model with timing characteristics from a target technology. The back annotation substitutes timing values in the PLD simulation model with timing values from the target technology to generate the new integrated circuit simulation model.

Abstract: One embodiment of the invention allows a designer to quickly and efficiently obtain a simulation model for a new integrated circuit implementation of a circuit design from the PLD simulation model for that circuit design. The designer begins with the simulation model of the PLD and back annotates the simulation model with timing characteristics from a target technology. The back annotation substitutes timing values in the PLD simulation model with timing values from the target technology to generate the new integrated circuit simulation model.

Abstract: A configuration emulation circuit generates configuration signals to emulate a Programmable Logic Device (PLD) in a configuration timing relationship and a configuration protocol relationship between a programming circuit and the PLD. The circuit includes a first circuit to emulate the PLD in the configuration timing relationship. The circuit also includes a second circuit to emulate the PLD in the configuration protocol relationship. The second circuit is coupled to receive a configuration mode signal and is responsive to the configuration mode signal.

Abstract: A method and apparatus for converting a programmable logic device representation of a circuit into a second representation of the circuit. A circuit design is first captured and converted into a first representation of the circuit design. The first representation is for programming a programmable logic device. A first part of the first representation is for programming a configurable element in the programmable logic device. The first part of the first representation is used as a set of parameters for a general model of the configurable element. The second representation of the circuit includes the parameterized general model of the configurable element.

Abstract: A configuration emulation circuit generates configuration signals to emulate a programmable Logic Device (PLD) in a configuration timing relationship and a configuration protocol relationship between a programming circuit and the PLD. The circuit includes a first circuit to emulate the PLD in the configuration timing relationship. The circuit also includes a second circuit to emulate the PLD in the configuration protocol relationship. The second circuit is coupled to receive a configuration mode signal and is responsive to the configuration mode signal.