* Translation between USB PD and whatever communication protocol runs on the center Magsafe pin (in Magsafe 1 and 2 it was Dallas 1-wire)
* Disabling power output when the cable is not connected to a computer, so that a metal object touching the spring pins can't create a dangerous short circuit
Comments
* Translation between USB PD and whatever communication protocol runs on the center Magsafe pin (in Magsafe 1 and 2 it was Dallas 1-wire)
* Disabling power output when the cable is not connected to a computer, so that a metal object touching the spring pins can't create a dangerous short circuit
* Driving the LED