Is USB-C an upstream facing port or a downstream facing port?
Downstream Facing Port (DFP): typically the USB Type-C port on a host, such as a PC or downstream port of a hub, to which devices are connected. Upstream Facing Port (UFP): The USB Type-C port on a device (i.e., US Flash Drive, USB Monitor, USB mouse) or upstream port of a hub that connects to a USB host.
What is CC in USB-C?
The CC wire is used to cable orientation detection, USB Type-C current capability advertisement and detection, and USB2. 0 BMC communication. See Section 3.0, CC Pins for additional details. The VCONN wire is used to power active or electronically marked cables.
How many pins does USB-C have?
24 pins
A standard USB Type C connector houses 16 data transfer pins, 4 power pins, and 4 ground pins for a total of 24 pins.
Are there different types of USB-C?
A USB-C cable can be limited to either USB 3.1, 3.0, or 2.0 speeds. Some USB-C cables are USB 3.1 Gen 2 cables. This means they can transfer an HD movie in about five seconds, around 10 gigabits per second. You could easily end up stranded if you mix up two different cables.
How does the USB Type C DFP controller work?
The RTQ2116C monitors the Type-C Configuration Channel (CC) lines to detect an Upstream Facing Port (UFP) device attach event, then turns on external VBUS MOSFET to apply power to VBUS and communicates the selectable VBUS current sourcing capability.
What do I do with VBUS _ Det ( VBUS detect )?
In a USB hub design which has a USB Type-C port on the upstream-facing port (Port 0), what do I do with VBUS_DET (VBUS Detect)? In USB Type-C systems, we must be more thoughtful about how to implement the VBUS_DET (VBUS Detect) pin correctly for USB hub designs.
How are USB 2.0 and V bus signals maintained?
GND, USB 2.0 and V BUS signals maintain connection. USB 2.0 signals are repeated in the top and bottom rows of the Type-C receptacle to maintain connectivity in either orientation. V CONN or CC pin on the plug may be connected to either of the configuration channel pins – CC1 or CC2 of the receptacle – depending upon the orientation.
What’s the maximum current a VBUS can get?
In this case, VBUS cannot rise above 5.5V (vSafe5V_max) and the maximum current indicated by the USB-C Source’s Rp pullup strength on the CC line.