High performance self modifying on-the-fly alterable logic FPGA,

Details High performance self modifying on-the-fly alterable logic FPGA, High performance self modifying on-the-fly alterable logic FPGA,

1996-08-21

1998-11-17

Tokar, Michael J.

Electronic digital logic circuitry

Multifunctional or programmable

Having details of setting or programming of interconnections...

326 40, 326 39, H03K 19173, H03K 738

Patent

active

058381651

ABSTRACT:
A technique for configuring arrays of programmable logic cells, including those associated with FPGA devices, through a novel DRAM-based configuration control structure that enables not only "on-the-fly" alterable chip and similar device reconfigurations, but, where desired, self-modifying reconfigurations for differing functionalities of the devices, eliminating current serious reconfigurability limitations and related problems, while providing significantly enhanced system performance at low cost. A large amount of memory is available internal to the FPGA and is accessed with a small number of pins such that the reconfiguration time is, for example, four orders of magnitude faster than the traditional approaches and at notably low cost.

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patent: 5581198 (1996-12-01), Trimberger
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