Advanced Micro Devices Corporation

Ati Technologies Ulc

Noah Beck

Larry David Hewitt

Kevin Michael Lepak

Michael J Tresidder

Yanfeng Wang

Francisco Leonel Duran

John D Wilkes, Jr

A method and apparatus for scrambling and descrambling data in a computer system includes transmitting non-scrambled data from a first high speed inter chip (IP) link circuit located on a first chip to a first serializer/deserializer (SERDES) physical (PHY) circuit located on the first chip, the first high speed link IP indicating the data is not scrambled. The received non-scrambled data is scrambled by the first SERDES PHY circuit and transmitted to a second chip. The received scrambled data is descrambled by a second SERDES PHY circuit located on the second chip. The non-scrambled data is transmitted by the second SERDES PHY circuit to a second high speed link IP circuit located on the second chip to a third circuit for further processing or transmission.

Method and apparatus for data scrambling

Processor power may be managed by executing state storage and power gating instructions after receiving an idle indication. The idle indication may be received while the processor is executing instructions in a first mode, and the processor may execute the state storage and power gating instructions in a second mode. The state storage and power gating instructions may be inaccessible to the processor when operating in the first mode.

Power management through power gating portions of an idle processor

A technique for operating a processor includes detecting an interrupt having a first core of the processor as a destination core. The technique includes handling the interrupt by a second core of the processor in response to the first core being in a low-power state. The first core may be capable of executing a greater number of instructions-per-cycle than the second core and the second core may consume less power than the first core. The first core may be coupled to a first voltage plane and the second core may be coupled to a second voltage plane having lower power than the first voltage plane.

Mechanism for reducing interrupt latency and power consumption using heterogeneous cores

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Princeton, MA, United States of America

Noah Beck