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MSPM0G1106: Enabling GPIO pin's internall pull-up or pull-down resistor

Kyungjae Lee
Intellectual 730 points
Part Number: MSPM0G1106


Tool/software:

Hi,

I'm currently using an MSPM0G1106 as a host MCU in my application.

If I wanted to ensure that internal pull-down resistor is enabled for a GPIO pin which I'll be using as an active-high pin, do I need to select one from the "IO structure" field shown in the snapshot below? Or is leaving it as "Any" ok? What would be the best way to ensure that the pull-down resistor is enabled?

Thank you,

Kyungjae Lee

  • +1
    TI__Genius 10365 points

    Hi Kyungjae,

    According to datasheet, you could choose among standard-drive IO, high-speed IO and high-drive IO. If there is no large current driving requirement of this GPIO pin(over than 6mA), you could choose from standard-drive IO.

    As for the "IO Structure" selection menu, according to your selection, there will be different selectable results in "PinMux" item. This could help you to filter the IO feature you want.

    And what is really matter for a pull-down resistor is the configuration below:

    Regards,
    Pengfei

  • 0 in reply to Pengfei Xie
    Intellectual 730 points

    Hi Pengfei,

    I appreciate the explanation. That last part helped!

    Best regards,

    Kyungjae Lee