GPIO Hardware

Does the GPIO have internal pull-ups?

I have an existing board with GPIO5 connected to a test point, but without any signal conditioning… trying to see if I could connect this directly to 3.3V or GND without a problem.



Many of the pins on the NS7520 chip itself used in the Digi Connect ME module have internal pullup/pulldowns. I looked in the “NS7520 Hardware Reference Guide” and found some info on pages # 11-14. I would pay special attention to a note on page #308 concerning pull-ups for No-Connect Pins.

NS7520 Hardware Reference Guide:
Pinout detail tables and signal descriptions Page #11-14

Which module are you looking at?