Intel Corporation

Netronome Systems Incorporated

Chunli Cai

Dean Samara-Rubio

Joseph M Lamb

Ranjit D Loboprabhu

An integrated circuit receives a DDR (Double Data Rate) data signal and an associated DDR clock signal, and communicates those signals from integrated circuit input terminals a substantial distance across the integrated circuit to a subcircuit that then receives and uses the DDR data. Within the integrated circuit, a DDR retiming circuit receives the DDR data signal and the associated DDR clock signal from the terminals. The DDR retiming circuit splits the DDR data signal into two components, and then transmits those two components over the substantial distance toward the subcircuit. The subcircuit then recombines the two components back into a single DDR data signal and supplies the DDR data signal and the DDR clock signal to the subcircuit. The DDR data signal and the DDR clock signal are supplied to the subcircuit in such a way that setup and hold time requirements of the subcircuit are met.

DDR retiming circuit

Apparatus and methods for switching N optical input signals to M optical outputs are disclosed. In an example, an apparatus includes a plurality of optically transparent fabrics. Each of the fabrics receive at least one optical input signal and switch that received signal to at least one of a plurality of intermediate outputs. A multiplexer is operatively coupled between the intermediate outputs of the plurality of optically transparent fabrics and the M optical outputs.

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Fremont, CA, United States of America

Chunli Cai