• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 30 subscribers
  • Views 80 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.

AM2432: BOOTMODE timing issue

Daniel Cheng1
Mastermind 7075 points
Part Number: AM2432

Tool/software:

Hi Expert,

If the timing of the BOOTMODE signal does not follow the timing in the figure below, will there be a problem? The EVM circuit uses PORz_OUT to control reading the BOOTMODE signal
time

Thanks

Daniel

  • 0
    TI__Guru* 86180 points

    The BOOTMODE signals are latched at the time the PORz_OUT signal deasserted.  There is potential for boot failure if SYSBOOT latching is not correct.  If you have other peripherals attached to the BOOTMODE signals, they could cause conflicts with the BOOTMODE pull resistors and latch the wrong value.  This is why the EVM uses PORz_OUT to control the isolation buffers and ensure other components do not conflict with the BOOTMODE settings.

    Regards,

    James