Xilinx, Inc.

Flex Logix Technologies, Inc.

Robert I-Che Fu

Frederick Abbott Ware

Manoj Chirania

Philip D Costello

In an integrated circuit component having a switch interconnect network and a configuration memory, a constituent multiplexer of the switch interconnect network includes a plurality of pass-gates having respective outputs coupled in common to a pass-gate output node, respective inputs that constitute respective signal inputs of the multiplexer, and control inputs coupled to receive respective pass-gate control signals having logic states according to configuration data stored within the configuration memory. Power-up control circuitry within the switch interconnect network drives the pass-gate output node of the multiplexer to a predetermined voltage level following power-up of the integrated circuit component and prior to execution of a programming operation in which one or more word-lines within the configuration memory are activated to store the configuration data within the configuration memory.

Power-up switch-interconnect configuration

An apparatus and method to accurately simulate negative bias and temperature instability (NBTI) and its effect. According to a first simulation method, a simulation netlist is automatically scanned for any P-type devices that are in a conductive state after application of an initial condition. Each conductive P-type device is automatically replaced with an NBTI device model and a first simulation cycle is executed. After the first cycle, each conductive P-type device is again replaced with an NBTI model and a second simulation cycle is executed. In a second simulation method, only those P-type devices transitioning from a non-conductive state to a conductive state are automatically replaced with an NBTI model prior to each half cycle of the second simulation method. The first simulation method provides robustness, while the second simulation method provides worst case verification in less time as compared to the first simulation method.

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Saratoga, CA, United States of America

Robert I-Che Fu