US 2014/0232432 A1 · DEVICE AND METHOD FOR DUAL-MODE LOGIC

Abstract

A dual-mode logic gate, for selectable operation in either of static and dynamic modes, includes: a static gate which includes at least one logic input and a logic output; a mode selector, configured for outputting a turn-off signal to select static mode operation and for outputting a dynamic clock signal to select dynamic mode operation; and a switching element associated with the mode selector static gate, comprising a first input connected to a constant voltage, a second input for inputting the mode selection signal from the mode selector, and an output connected to a logic output of the static gate. The switching elements switches the logic gate operation from static to dynamic mode, by applying the appropriate signal to the switching element.

Claims29

Dependent claims

A dual-mode logic gate, for selectable operation in either of static and dynamic modes, comprising:

a static gate comprising, at least one logic input and a logic output;
a mode selector, configured for outputting a turn-off signal to select static mode operation and for outputting a dynamic clock signal to select dynamic mode operation;
and
a switching element associated with said mode selector static gate, comprising a first input connected to a constant voltage, a second input for inputting said mode selection signal from said mode selector, and an output connected to a logic output of said static gate, configured to:
i) disconnect said static gate output from both of said first and second inputs when said mode selector applies said turn-off signal to said second input;
and
ii) connect said static gate output to both of said first and second inputs when said mode selector applies said dynamic clock signal to said second input.

4 more elements

A dual-mode logic circuit, for selectable operation in either of static and dynamic modes, comprising:

a plurality of DML blocks connected to perform a logic function, each of said DML blocks being independently selectable for static or dynamic operation;
and
a mode selector associated with said plurality of DML blocks, configured for selecting between static and dynamic operation by outputting a mode selection signal to each of said DML blocks to select between static and dynamic operation for each of said DML blocks.

A method of delay control for a dual-mode logic circuit, comprising:

providing dual-mode logic circuit comprising a plurality of critical paths, each of said critical paths being independently selectable for static or dynamic operation;
selecting at least one of said critical paths for dynamic operation;
and
operating said selected critical paths in dynamic mode and said unselected critical paths in static mode.

1 more element

Dependencies are inferred from the claim text.

Device and method for dual-mode logic

Life of this patent

Device and method for dual-mode logic

Life of this patent

Abstract

Claims29