Method and system for speed negotiation for twisted pair links using intelligent E-FIFO in fibre channel systems
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United States of America Patent
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Sep 22, 2015
Grant Date -
Mar 7, 2013
app pub date -
Nov 5, 2012
filing date -
Dec 2, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
Systems, apparatuses and methods are disclosed for using elastic buffers in fiber channel systems over twisted pair links. One such system includes a fiber channel host device and another fiber channel host device communicatively coupled to the fiber channel device over a twisted pair link. The system also includes a slave physical layer (PHY) circuit residing in the fiber channel host device and a master PHY circuit residing in the another fiber channel host device. The master PHY circuit is operable to transmit, using a reference clock, data from a transmit elastic buffer. The slave PHY circuit is operable to receive the data transmitted by the master PHY circuit and to store the received data using a derived clock recovered from the received data.
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