Forum Discussion

Spark_Wang's avatar
Spark_Wang
Icon for New Contributor rankNew Contributor
2 years ago

E-Tile CPRI PHY IP

Hi,

I would like to inquire about the meaning of the parameters in the E-tile cpri phy IP user guide

As shown in table 91,What is the UI period in this ip and how to confirm the UI period?

thank you:)

3 Replies

  • Kshitij_Intel's avatar
    Kshitij_Intel
    Icon for Frequent Contributor rankFrequent Contributor

    Hi,


    UI Period is Unit Interval.


    eg, If you want to transfer 10G rate, your actual line rate is 10.3125G due to 64b/66b encoding. In this case, your UI Period = 1/10.3125 ns.


    Similarly, if want to transfer at 2.5G, your actual line rate is 3.125G due to 8b/10b encoding. In this case, your UI Period = 1/3.125 ns.


    Hope this clarifies.


    Thank you,

    Kshitij Goel