What is 1-Wire protocol?
The 1-Wire protocol is a proprietary protocol (Maxim/Dallas) single-wire interface, half-duplex, bidirectional, low-speed and power, long-distance serial-data communication protocol. It operates over a single data line, without clock signal. But, at least two wires are required for 1-wire bus: Data, GND. An additional wire might be necessary (Vcc), depending on powering mode. The powering modes are: parasitic (no vcc), and conventional (with vcc), as seen on figures below.
USB-C PD (Power Delivery)
This file explains the basics of what I learned about USB-C PD to help development engineers on their projects. I'm not an english mother-language speaker, so here I leave my apology for any mistakes.
Again, this docs relates what I learned. I'm not an expert on USB-C PD.
The USB-C standard came with far more features than the previous standards. The thing that most catches the attention of common users is that you don't need to be aware of cable orientation (the connector is symmetrical).