Macrocells supporting a carry cascade

Details Macrocells supporting a carry cascade Macrocells supporting a carry cascade

2005-07-05

2005-07-05

Malzahn, D. H. (Department: 2124)

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

Reexamination Certificate

active

06915323

ABSTRACT:
A programmable logic device includes a plurality of logic blocks. Each logic block includes a plurality of macrocells, with each macrocell being configurable to register a sum of product term output. In addition, the macrocells within each logic block are arranged from a first macrocell to a last macrocell. Each macrocell is associated with a carry-in and a carry-out signal. The macrocells are configured to support a carry cascade such that the carry-out signal from the first macrocell becomes the carry-in signal for the second macrocell, and so on.

REFERENCES:
patent: 4769562 (1988-09-01), Ghisio
patent: 5898602 (1999-04-01), Rothman et al.
patent: 5977791 (1999-11-01), Veenstra
patent: 5978826 (1999-11-01), Kolagotla
patent: 6020759 (2000-02-01), Heile
patent: 6029236 (2000-02-01), Steele et al.
patent: 6064599 (2000-05-01), Cliff et al.
patent: 6144573 (2000-11-01), Heile
patent: 6150838 (2000-11-01), Wittig et al.
patent: 6188240 (2001-02-01), Nakaya
patent: 6208163 (2001-03-01), Wittig et al.
patent: 6215326 (2001-04-01), Jefferson et al.
patent: 6292017 (2001-09-01), Rangasayee
patent: 6505226 (2003-01-01), Ahn
patent: 0866558 (1998-09-01), None

Affiliated with

Also associated with

Rating

Macrocells supporting a carry cascade does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Macrocells supporting a carry cascade, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Macrocells supporting a carry cascade will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3415758