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SYSTEM, METHOD, AND DEVICE TO DISTRIBUTE ACCURATE SYNCHRONIZATION TIMESTAMPS IN AN EXPANDABLE AND TIMING CRITICAL SYSTEM

  • US 20120219099A1
  • Filed: 02/25/2011
  • Published: 08/30/2012
  • Est. Priority Date: 02/25/2011
  • Status: Active Grant
First Claim
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1. A device comprising:

  • an interface to an interconnect system;

    a time base comprising a clock and a time counter which increments or decrements its count each period of the clock;

    a time stamp generator to capture a count of the time base associated with the device, the time stamp generator to use the interface to transmit a time stamp event indicator to the interconnect system and also to transmit a device identifier to the interconnect system, wherein the interface is to transmit signals to simultaneously initiate a time stamping event in one or more other devices and to trigger transmission by the one or more other devices of device identifiers and timestamps to the interconnect system; and

    collision avoidance logic to determine whether the device is permitted to transmit its time stamp using the interconnect system, wherein the time stamp generator is to wait for a period of time and transmit the device identifier to the interconnect system again in response to the device not being permitted to transmits its time stamp.

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