• State Resolved
  • Locked Locked
  • Replies 2 replies
  • Subscribers 99 subscribers
  • Views 637 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

DDR3L IBIS Model

Prad1
Genius 3825 points

Other Parts Discussed in Thread: AM3352, TPS51200

Hi,

Our customer is planning planning to use DDR3L with AM3352.
We would like to know if the current AM335x IBIS model support DDR3L?

And if the TPS51200 is used for the VTT,
is the TPS51200 also included in the AM335x IBIS model?
If not what settings should be done for the VTT.

Regards
Prad

  • 0
    TI__Guru**** 393215 points

    Hi Prad,

    Section 5.1.1 of the AM335X Datasheet Rev. F states:

    "For the mDDR(LPDDR), DDR2, DDR3, DDR3L memory interface, it is not necessary to use the IBIS
    models to analyze timing characteristics. TI provides a PCB routing rules solution that describes the
    routing rules to ensure the mDDR(LPDDR), DDR2, DDR3, DDR3L memory interface timings are met."

    The DDR3/DDR3L guidelines can be found in section 5.6.2.3 of the AM335X Datasheet Rev. F.

  • 0 in reply to Biser Gatchev-XID
    Genius 3825 points

    Hi Biser,

    Thank you,

    I understood that it is not necessary to use the IBIS for DDRx.

    But the below Wiki mentions
    "IBIS modeling can be used to fine tune the set of options for a given PCB"
    http://processors.wiki.ti.com/index.php/How_to_use_the_AM335x_IBIS_Models

    Just in case we would like to know if it is supported?

    Regards
    Prad