• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 40 subscribers
  • Views 5701 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.

CC3135MOD: If either nRESET (Pin 35) or nHIB (Pin 4) can be used for Device Restart and Reset, then nHIB can not be used for Power On Reset

Mark Kim
Prodigy 80 points
Part Number: CC3135MOD

Hi 

in CC3135MOD data sheet, it says that either nRESET (Pin 35) or nHIB (pin 4) can be used for Device Restart and  Reset.

So, we have to choose which one (either nRESET or nHIB) we are going to use for Device Restart and Reset.

In order to save the power, we are considering using nHIB for Device Restart and Reset, and want to know if nHIB can be used for Power On Reset onto CC3135MOD?

During Power ON, only nRESET pin must be held below 0.6V for at least 5ms?

Thanks,

  • +1
    TI__Expert 6580 points

    Hi Mark,

    Yes, for the device to reset the nReset pin must be held low (voltage of at least 0.6v) for 5ms. On the module the timing for the nReset during PowerUp is already handled by internal components (i.e the 100k pull up). 

    Please refer to the CC3x35 Hardware Design Checklist on tab "CC3135MODR" as it mentions what should be connected to nReset pin.

    For the nHib pin note that the minimum hibernate time is at least 10ms, as seen in section "8.15.4 Wakeup From HIBERNATE Mode Timing" of the datasheet).

    BR,

    Jessica M .Torres

    .