Backward compatible PLDs

Details Backward compatible PLDs Backward compatible PLDs

2007-12-18

2007-12-18

Chiang, Jack (Department: 2825)

Computer-aided design and analysis of circuits and semiconductor

Nanotechnology related integrated circuit design

Reexamination Certificate

active

11111338

ABSTRACT:
A computer-readable medium is encoded with a computer program for directing a computer to convert a first bitstream operable to configure, for example, an earlier-generation PLD to a second bitstream operable to configure, for example, a later-generation PLD, wherein functionality is preserved from one PLD to another. The computer divides each PLD into similar regions, and replicates a function of each region of the first PLD in a corresponding region of the second PLD. The computer interconnects the regions of the second PLD to replicate the interconnections of the regions of the first PLD. The computer allows a user to manipulate the connection scheme of the second PLD.

REFERENCES:
patent: 5815405 (1998-09-01), Baxter
patent: 7038490 (2006-05-01), Singh et al.
patent: 2003/0200520 (2003-10-01), Huggins et al.
patent: 2004/0021490 (2004-02-01), Baxter et al.
patent: 2004/0139411 (2004-07-01), Smith et al.
patent: 2005/0138595 (2005-06-01), Khakzadi et al.
patent: 2005/0235239 (2005-10-01), Matsubara

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