Intel Corporation

Planar Labs Corporation

Other

Rainbow Displays, Inc.

Sanjay Dabral

Theodore Zale Schoenborn

Tim Frodsham

David Stewart Dunning

Naveen Cherukuri

Ming Zeng

Jeffrey R Wilcox

Zale Theodore Schoenborn

Santanu Chaudhuri

Karthisha S Canagasaby

Krishna Seshan

Aaron T Spink

Phanindra Mannava

Muraleedhara Herur Navada

Venkatraman Iyer

Rahul R Shah

Selim Bilgin

Dilip K Sampath

Robin Tim Frodsham

Pascal A Meier

Subramaniam M Maiyuran

Maurice B Steinman

Alper Ilkbahar

Ken Drottar

Anil K Pant

Lakshminarayan Krishnamurty

Muraleedhara Navada

Timothy Frodsham

Evelina F Yeung

Stephen R Mooney

Zuoguo Wu

Donald P Seraphim

Allen Jay Baum

David J O'Brien

Raymond G Greene

Boris Yost

Keith M Self

Larry R Tate

Chamath Abhayagunawardhana

Michael J Tripp

John P Koons

Sam E Calvin

Pascal C H Meier

Ramesh Senthinathan

Chung-Wai Yue

Dillip Sampath

T Zale Schoenborn

Feng Chen

Andrew M Volk

Victor W Lee

Akhilesh Kumar

Brent S Stone

Scott E Siers

Mohiuddin M Mazumder

Raj Nair

Richard S Jensen

Richard J Glass

Eduard Roytman

Dave Dunning

Fenardi Thenus

Hai-Feng Liu

Mehrdad Mohebbi

Chris D Matthews

Christopher Cheng

Michael Sandhinti

Ernest Khaw

Lesley A Polka

Maria Ruth Angelica Flores

David D Dunning

Murateendhara Navada

Thu M Do

Colin Looi

Chris C Gianos

Muraleendhara Navada

Phanindra Mannaya

Davis S Dunning

Methods and apparatus relating to link power savings with state retention are described. In one embodiment, one or more components of two agents coupled via a serial link are turned off during idle periods while retaining link state in each agent. Other embodiments are also disclosed.

Link power savings with state retention

Systems and methods of managing a link provide for receiving a remote width capability during a link initialization, the remote width capability corresponding to a remote port. A link between a local port and the remote port is operated at a plurality of link widths in accordance with the remote width capability.

Dynamically modulating link width

An electronic communications receiver includes a derived clock signal circuit operable to receive a data signal and to derive a derived clock signal from the received data signal. A separate forwarded clock signal circuit is further operable to receive a forwarded clock signal, and a clock management circuit is operable to receive signals from the derived clock signal circuit and the forwarded clock signal circuit, and to output an output clock signal.

I/O link with configurable forwarded and derived clocks

Redundant acknowledgment between agents performing a loopback test over bidirectional communications bus is described. In one example, in a processor including a communications agent coupled to a bidirectional communications bus, the communications agent initiates loopback communications to a second agent, sends a packet including a redundant acknowledgment sequence to the second agent, receives the packet including the redundant acknowledgement sequence looped back from the second agent, determines whether the received redundant acknowledgment sequence is valid, sends a test sequence to the second agent, receives the test sequence looped back, and if the received redundant acknowledgment sequence is determined to be valid, then checks the received test sequence.

Redundant acknowledgment in loopback entry

A technique to perform virtualization of lanes within a common system interface (CSI) link. More particularly, embodiments described herein relate to virtualizing interconnective paths between two or more electronic devices residing in an electronic network.

Technique for lane virtualization

Methods, apparatuses and systems for physical link error data capture and analysis. A receiver is coupled to receive a data stream via a point-to-point serial link. A control circuit is coupled with the receiver to cause the receiver to selectively sample the data stream according to an offset parameter and an interval parameter. Comparison circuitry compares the data stream sample to expected data values to determine a bit error rate.

Apparatuses, systems and methods for detecting errors in data streams on point-to-point serial links

In general, in one aspect, the disclosure describes an apparatus having an averager to receive differential output voltages of a transmitter and generate an average transmitter output voltage. A comparator is to compare the average transmitter output voltage to a reference voltage and generate a difference therebetween. An integrator is to integrate the difference between the average transmitter output voltage and the reference voltage over time. The integrated difference is fed back to the transmitter to bias the transmitter.

Input/output driver swing control and supply noise rejection

Embodiments of the invention provide an algorithm for dividing a link into one or more reduced-width links. For one embodiment of the invention, a multiplexing scheme is employed to effect a bit transmission order required by a particular cyclic redundancy check. The multiplexed output bits are then swizzled on-chip to reduce on-board routing congestion.

Methods and apparatuses to effect a variable-width link

In one embodiment, the present invention includes a method for receiving an error correction code for information from a first port of a first agent and receiving the information from a second port of the first agent by probing a first link under test that couples the first agent and a second agent. The code may be used to validate the information, e.g., in a probe receiver during test or debug operations. Other embodiments are described and claimed.

Providing error correction coding for probed data

A circuit board may include first and second sides, a plurality of circuit board layers between the sides, and a plurality of signal traces located in respective circuit board layers. The circuit board layers and the signal traces may extend from a first component connection region at the first side of the circuit board to a second component connection region at the first side of the circuit board. The signal traces may thus form stubless signal paths through the circuit board between the component connection regions. Of course, many alternatives, variations, and modifications are possible without departing from this embodiment.

Circuit board including stubless signal paths and method of making same

Growing community of inventors

Palo Alto, CA, United States of America

Sanjay Dabral