Control scheme for on-chip capacitor degating

Details Control scheme for on-chip capacitor degating Control scheme for on-chip capacitor degating

1997-03-28

1999-02-23

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

327337, 307 48, 307 66, 320166, G05F 110

Patent

active

058748547

ABSTRACT:
A method of controlling a plurality of on-chip capacitors used to enhance power supply to logic circuits for a computer processor. The capacitors are each provided with transistors which temporarily disable the capacitors when an appropriate logic state is applied to the gate of the transistors. In this manner the effects of the capacitors upon system performance can be measured, and if a particular capacitor (or capacitor bank) is defective or presents an adverse impact, it can be permanently disabled by blowing fuses provided for each capacitor (or capacitor bank). The capacitors may be selectively disabled using a control circuit which has a multiplexer provided with a set of inputs from a register which contains a bit pattern that is used to determine which capacitors to disable. The register can be loaded with any pattern or with a pattern that corresponds to the states of the unblown fuses. Alternatively, all of the capacitors may be disabled, such as during power-on reset.

REFERENCES:
patent: 4272831 (1981-06-01), Ullrich
patent: 4281401 (1981-07-01), Redwine et al.
patent: 4484276 (1984-11-01), Porter et al.
patent: 4636658 (1987-01-01), Arakawa
patent: 4809162 (1989-02-01), Si
patent: 4900951 (1990-02-01), Saito et al.
patent: 5109169 (1992-04-01), Hughes
patent: 5391999 (1995-02-01), Early et al.
patent: 5466676 (1995-11-01), Booth et al.

Affiliated with

Also associated with

Rating

Control scheme for on-chip capacitor degating does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Control scheme for on-chip capacitor degating, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control scheme for on-chip capacitor degating will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-310541