• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 33 subscribers
  • Views 430 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.

DS80PCI102: Program by SMBus

Kuramochi Tadahiko
Guru 28715 points
Part Number: DS80PCI102

Hi,

My customer is considering to use DS80PCI102.

Though they hope to program setting through only pins, I'm understanding that they must use SMBus if they adjust in a detail. 

If they must for adapt x1 PCIe Gen1,  can they adapt for it by programming through only pins?

Or should they program through also SMBus?

Best Regards,

Kuramochi

  • 0
    TI__Mastermind 43795 points

    Hi,

    It is very possible to tune the DS80PCI102 with just pin control.  Having an option to control with the SMBus is nice to have, but not necessary.

    For a GEN1 application I would set the following pin controls

    ENSMB = 0

    EQA0, EQA1 = 0  (as needed - recommend to start with minimum setting)

    EQB0, EQB1 = 0  (as needed - recommend to start with minimum setting)

    PRSNT# = 0 or connect to PCIe PRSNT#

    VOD_SEL = Float, DEMB, DEMA = Float  (1.0V with -3.5 dB for PCIe Gen1)

    Regards,

    Lee