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PROTOCOL-AGNOSTIC AUTOMATIC RATE NEGOTIATION FOR HIGH-SPEED SERIAL INTERFACE IN A PROGRAMMABLE LOGIC DEVICE

  • US 20080225933A1
  • Filed: 03/16/2007
  • Published: 09/18/2008
  • Est. Priority Date: 03/16/2007
  • Status: Active Grant
First Claim
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1. A method for determining a data rate in a programmable logic device serial interface channel operating at a clock rate, said method comprising:

  • monitoring said channel for occurrence of single-bit transitions; and

    on detection of a plural number of said single-bit transitions within a predetermined duration, concluding that said data rate is substantially a multiple of said clock rate.

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