Advanced Micro Devices Corporation

Koninklijke Philips Corporation N.V.

Balwinder Singh

Gerald Robert Talbot

Milam Paraschou

Thomas H Likens, Iii

Alushulla Jack Ambundo

Edoardo Prete

Jeffrey Cooper

Klaas-Jan De Langen

Michael A Margules

Dean E Gonzales

Chad S Gallun

Martijn Bredius

Systems, apparatuses, and methods for performing efficient data transfer in a computing system are disclosed. A computing system includes multiple transmitters sending singled-ended data signals to multiple receivers. A termination voltage is generated and sent to the multiple receivers. The termination voltage is coupled to each of signal termination circuitry and signal sampling circuitry within each of the multiple receivers. Any change in the termination voltage affects the termination circuitry and affects comparisons performed by the sampling circuitry. Received signals are reconstructed at the receivers using the received signals, the signal termination circuitry and the signal sampling circuitry.

Pseudo differential receiving mechanism for single-ended signaling

Systems, apparatuses, and methods for performing efficient data transfer in a computing system are disclosed. A termination voltage generator includes an inverter-based chopper circuit, which uses a first group of an even number of serially connected inverters coupled between the output node of the chopper circuit and the gate terminal of an output pmos transistor. Additionally, a second group of an even number of serially connected inverters is coupled between the output node and the gate terminal of an output nmos transistor. A replica inverter includes two serially connected pmos transistors and two serially connected nmos transistors. Each of one pmos transistor and one nmos transistor receives a generated voltage set as the expected value of the termination voltage. Each of the other pmos transistor and nmos transistor receives an output based on a comparison between the expected value to the output of the replica inverter.

Low power VTT generation mechanism for receiver termination

A driving circuit provides a symmetric differential driving signal relative to one set of voltage potentials to a driver circuit that drives an output node to another set of voltage potentials. The differential driving signals from the driving system are equal and opposite to each other, thereby avoiding stray current flow between the driving system and the driven current mirrors. The transistors that provide the driving signal are continuously biased, using a weak bias in one logic state and stronger bias in the other state, to avoid hard-switching transients.

Level shifter with independent grounds and improved EME-isolation

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Union City, CA, United States of America

Balwinder Singh