Namely, output resistance of an output pin (or, how much current is it safe to draw), and input resistance of an input pin (or, how much current will be drawn from the peripheral). Based on the latter, recommended pullup/-down resistor would be helpful.
Namely, output resistance of an output pin (or, how much current is it safe to draw), and input resistance of an input pin (or, how much current will be drawn from the peripheral). Based on the latter, recommended pullup/-down resistor would be helpful.