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Providing a consolidated sideband communication channel between devices

  • US 8,549,205 B1
  • Filed: 05/22/2012
  • Issued: 10/01/2013
  • Est. Priority Date: 05/22/2012
  • Status: Active Grant
First Claim
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1. An apparatus comprising:

  • a protocol stack including a transaction layer and a link layer;

    a first physical (PHY) unit coupled to the protocol stack to provide communication between the apparatus and a device coupled to the apparatus via a physical link, the first PHY unit of a low power communication protocol and including a first physical unit circuit; and

    a second PHY unit coupled to the protocol stack to provide communication between the apparatus and the device via a sideband channel coupled between the apparatus and the device separate from the physical link, wherein the second PHY unit includes a second physical unit circuit.

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