Integrated circuit device with user-programmable conditional power-down means

An integrated circuit device comprising, a circuit and power-down means for disabling the circuit, wherein the power-down means is operative to reversibly disable the circuit in response to at least one input signal supplied to the power-down means, and wherein the power-down means is user-programmable such that its response to a specific state of the input signal is specified by the user of the device.

An integrated circuit device comprising a circuit and power-down means for disabling the circuit, wherein the power-down means is user-programmable for reversibly disabling the circuit under control of a user-specified state of at least one input signal supplied to the power-down means wherein the circuit is disabled under control of a user-programmed combination of a plurality of input signals supplied to the power-down means and the power-down means is programmable to disable the circuit under control of a least one input signal among the plurality of input signals, said one input signal being an output signal from the circuit.

An integrated circuit device comprising a circuit and power-down means for disabling the circuit, wherein the power-down means is user-programmable for reversibly disabling the circuit under control of a user-specified state of at least one input signal supplied to the power-down means, wherein the circuit is disabled under control of a user-programmed combination of a plurality of input signals supplied to the power-down means and the power-down means is programmable to disable the circuit under control of a least one input signal among the plurality of input signals, said one input signal being a further input signal supplied to the circuit.

An integrated circuit device comprising a circuit and power-down means for disabling the circuit, wherein the power-down means is user-programmable for reversibly disabling the circuit under control of a user-specified state of at least one input signal supplied to the power-down means, wherein the circuit is disabled under control of a user-programmed combination of a plurality of input signals supplied to the power-down means and the power-down means is programmable to disable the circuit under combined control of at least a first one among the plurality of input signals and which is an output signal from the circuit, and at least a second one among the plurality of input signals and which is a further input signal supplied to the circuit.

A programmable logic device comprising, a plurality of inputs to receive a plurality of input signals, programmable logic circuitry to perform a logic operation on the input signals for producing an output signal, and power-down means connected to one or more specific ones of the inputs for powering down at least a portion of the programmable circuit in response to one or more specific ones of the input signals, the power-down means being user-programmable as to its response to a particular state of the specific input signals.