Freescale Kinetis K20 based MK20FN1M0VMD12 reset state question

[sherry_zahid]

Hi,

I am working with MK20FN1M0VMD12 K20 based processor. I am looking at the default pin assignment in the datasheet, for example the pin "PTD11" says "disabled" under default. I understand that this means the pin will be disabled on reset. How does it behave exactly? Will PTD11 be pulled up/down? What exactly does "disabled" mean? Will I need to put an external (current limiting or pull up) resistor to this pin for microcontroller safety?

Thanks for your time,

Sherry

[Paul_Tian · Accepted solution]

Hi, Sherry

Disable means high-impedance. So you have leave this pin floating.

Hope my reply can help you.

Best Regards

Paul

[sherry_zahid]

Thanks Paul