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RM48L950: STC#29 errata,

paddu2017
Expert 2885 points
Part Number: RM48L950

Hi,

With regards to the STC#29 errata,it is mentioned that "An unexpected PMU interrupt request may be generated".
does this interrupt occur even if we have not enabled PMU interrupt?

Can we assume this errata doesn't apply if the PMU interrupt is disabled?

Best Regards
paddu

  • 0
    TI__Guru**** 196776 points
    Hello Paddu,

    The the interrupt request is generated even the PMU interrupt is disabled. You need to clear the bit 22 of INTREQ0 before enabling this interrupt. If the PMU is not used and the PMU interrupt is disabled, the VIM won't send this request to CPU.
  • 0 in reply to QJ Wang
    Expert 2885 points
    Hello Wang,

    Thank you so much for the quick information.

    One final conclusion on this,
    can we assume that there will be a PMU interrupt request generated because of this errata,
    but if we have disabled PMU interrupt there won't be a PMU interrupt to CPU?

    Best Regards
    paddu
  • 0 in reply to paddu2017
    TI__Guru**** 196776 points
    Hi Paddu,

    Your understanding is correct.

    The PMU interrupt may be generated under the condition defined in STC#29. The PMU interrupt is disabled (VIM channel 22), there won't be a PMU interrupt to CPU.