• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 63 subscribers
  • Views 112 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.

TPS929120-Q1: Register Reads to tell we are in a one-fail-all-fail state

David Shumate
Expert 7975 points
Part Number: TPS929120-Q1

Hi Team,

With the TPS929120 if we have EEP_OFAF=1, what registers can we read to confirm that a one fail all fail has occurred after a fault?

I know this will pull the ERR pin down, but the board will be remote so we wouldn't have access to the pin itself to read its status.

I'm particularly curious the best way to tell this if we have multiple 929120s on a board and their ERR pins are tied together and the error that actually triggered the fault is on a different device.

Thanks for the help,

David

  • 0
    TI__Mastermind 31585 points

    Hi，

    1) You can check register  FLAG_ERR to find the error, and if you want to know one fail all fail works or not, you can check CONF_EN0 and CONF_EN1.  CONF_EN0 and CONF_EN1 should be 0x00 after the fault. By the way, you can see the all light turn off after the fault.(Maybe it is easier)

    2) You can check FLAG_ERR in different devices to see which device triggered the fault.