US 10,541,686 B1 · Circuit and method for ensuring a stable IO interface during partial reconfiguration of a reprogrammable integrated circuit device

Abstract

A circuit for routing data in an integrated circuit device is described. The circuit comprises an input/output port; an interface circuit coupled to the input/output port and configured to receive data, the interface circuit comprising a selection circuit enabling the selection of the data and a predetermined value; and a control circuit coupled to control the selection circuit; wherein the control circuit holds the input/output port at the predetermined value during a partial reconfiguration of the integrated circuit device in response to a control signal. A method of configuring a circuit for routing data in an integrated circuit device is also described.

Claims20

Dependent claims

A circuit for routing data in an integrated circuit device, the circuit comprising:

an input/output port;
an interface circuit coupled to the input/output port and configured to receive data, the interface circuit comprising a selection circuit enabling a selection of the data or a predetermined value;
and
a control circuit coupled to control the selection circuit;
wherein the control circuit is configured to receive a first signal indicating that an initial configuration is completed and a second signal indicating that a partial reconfiguration is requested;
and
wherein the control circuit, after the initial configuration is completed, holds the input/output port at the predetermined value during a partial reconfiguration of the integrated circuit device, and enables providing data to the input/output port after the partial reconfiguration.

4 more elements

Dependencies are inferred from the claim text.

Circuit and method for ensuring a stable IO interface during partial reconfiguration of a reprogrammable integrated circuit device

Life of this patent

Circuit and method for ensuring a stable IO interface during partial reconfiguration of a reprogrammable integrated circuit device

Life of this patent

Abstract

Claims20