Carry circuit with power-save mode

Details Carry circuit with power-save mode Carry circuit with power-save mode

2006-07-17

2008-10-14

Barnie, Rexford (Department: 2819)

Electronic digital logic circuitry

Multifunctional or programmable

Having details of setting or programming of interconnections...

C326S037000, C326S062000

Reexamination Certificate

active

07436208

ABSTRACT:
A carry circuit having a power-save mode and a method for reducing power consumption of an integrated circuit are described. A power-save input is selected for control select signaling. A voltage level input is selected as an initial carry input. The initial carry input is propagated through a carry stage responsive to the carry input and the control select signaling. The carry stage is placed in a first non-switching steady state mode responsive to the propagating of the initial carry input through the carry stage.

REFERENCES:
patent: 6937062 (2005-08-01), Hwang et al.
patent: 7268584 (2007-09-01), Cashman et al.
U.S. Appl. No. 11/151,796, filed Jun. 14, 2005, Young et al.
U.S. Appl. No. 11/152,012, filed Jun. 14, 2005, Pham et al.

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