Structure and method for providing reconfigurable emulation circuit
First Claim
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1. In implementing an emulation circuit from a netlist description of a design, said design receiving a plurality of clock sources, a structure comprising:
- means for importing said netlist description into a data structure representing said design;
means for analyzing said data structure to identify, for each storage instance receiving a clock signal in said design, a clock path connecting said clock signal to one of said clock sources from which said clock signal is derived; and
means for implementing a portion of each clock path in a programmable logic device dedicated for clock generation.
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Abstract
A method and a structure provide emulation circuit implemented on a logic block module comprising clocked and unclocked field programmable logic devices (FPGAs). Software modules analyze the target logic circuit and impose delay constraints to require certain storage instances to be implemented on separate FPGAs so as to prevent hold time violation artifacts.
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4 Claims
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1. In implementing an emulation circuit from a netlist description of a design, said design receiving a plurality of clock sources, a structure comprising:
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means for importing said netlist description into a data structure representing said design; means for analyzing said data structure to identify, for each storage instance receiving a clock signal in said design, a clock path connecting said clock signal to one of said clock sources from which said clock signal is derived; and means for implementing a portion of each clock path in a programmable logic device dedicated for clock generation. - View Dependent Claims (2, 3, 4)
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Specification