Although the industry has been talking about USB type-c, PD and USB3.1 for so long, few articles can really tell what the three are, what is the difference, and what is the connection.
The following are 12 FAQs that Cypress engineers often encounter in their daily work. They answer questions about the use of USB type-c, Power Deliver, USB 3.1 Gen1/Gen2, and Cypress CCGx series. I hope you have something to do with it. help.
1. What is the difference between USB Power Delivery and USB type-c?
USB-Power Delivery (USB PD) is a protocol specification that supports up to 100W of power and data communications in a single cable. USB type-c is a new front and back plug-in USB connector specification that supports a new set of standards such as USB 3.1 (Gen1 and Gen2), Display Port and USB PD. The USB Type-C port supports up to 5V3A by default. If the USB PD is implemented in the USB Type-C port, it can support the 100W power (5V20A) defined in the USB PD specification. Therefore, having a USB Type-C port does not mean it supports USB PD.
2. What are DFP, DRP and UFP?
DFP is a USB Type-C port on a host or hub that is connected to the device.
UFP is a USB Type-C port on a device or hub that connects to the DFP of the host or hub.
DRP is a USB Type-C port that works as a DFP or UFP
Note: The above DRP is different from USB-PD DRP. USB-PD DRP refers to the power port as a Power Source and Sink. For example, the USB Type-C port on a laptop supports USB-PD DRP, either as a Power Source (when connected to a USB flash drive or mobile phone) or as a Sink (when a monitor or power adapter is connected).
3. Is USB Type-C mandatory for the USB 3.1 Gen1 or Gen2 specification? Is USB Type-C equivalent to USB3.0/3.1?
no. The USB Type-C specification is independent of the USB 3.1 Gen1 and Gen2 specifications. We can support Gen1 or Gen2 using the traditional TypeA and TypeB interfaces. The USB Type-C specification is a new specification developed by USB-IF that supports up to 100W power transmission and forward and reverse insertion. The USB Type-C connector can be designed either as Gen1 or as Gen2.
4. What is the Cypress USB Type-C product roadmap?
Cypress is committed to the development of USB Type-C and is developing a range of Type-C controllers. See Cypress's USB Roadmap (http://) for details.
5. What function does CCGx have in USB Type-C that supports PD?
As a USB Type-C controller, CCGx provides the following functions: detecting Type-C male insertion direction and configuring signal path; managing PD negotiation between provider and consumer when USB-PD starts; supporting display and data signals Transmission; negotiation of alternate modes.
6. Does Cypress provide tools for creating profiles for CCGx controllers?
Available, EZ-PD ConfiguraTIon UTIlity can be used to create profiles. For details, refer to the “Save Configuration†section in the EZ-PD Device ConfiguraTIon UTIlity User Manual.
7. How do I upgrade or program the firmware of EZ-PDTM CCGx?
There are two ways to upgrade or program the firmware of EZ-PDTM CCGx:
1. Upgrade as described in KBA97271 using the PC utility EZ-PD Configuration Utility provided by Cypress.
2. Upgrade as described in KBA97271 using the PSoC® Programmer and MiniProg3 Programmer via the SWD interface. This method is usually used during product development and is sometimes used at the factory.
8. What is the EZ-PD Configuration Utility?
Cypress's EZ-PD controller is a highly configurable and programmable solution. Customers can configure the chip using parameters stored in the built-in flash memory. Customers can select and configure these parameters based on specific usage and needs.
The EZ-PD Configuration Utility is a Microsoft Windows APP that directs CCGx users to configure and program the chip. This program works in conjunction with Cypress's hardware for hosting CCGx controllers and a USB interface. Users can intuitively select and configure application parameters using the EZ-PD Configuration Utility's graphical user interface (GUI).
9. What applications can Cypress's Type-C/PD solution be applied to?
All Type-C/PD applications, including host (PC/Mobile), PC/Mobile Power Adapter/Docking Station/Dongle/Cable/Monitor/VR/AR, etc.
10. What is the difference between Cypress's USB-PD 2.0 and Qualcomm's QC?
USB-PD 2.0 is a protocol developed by USB-IF to provide a power supply mechanism of up to 100W (20 V, 5 A) between USB devices, and support both USB and non-USB data on USB Type-C ports. signal. It enables the Host and peripherals to dynamically negotiate the direction of the power supply.
Qualcomm® Quick ChargeTM is a proprietary charging protocol developed by Qualcomm that uses a custom charger that supports the Qualcomm Quick Charge protocol to charge devices that also support the protocol. Quick Charge 2.0 provides up to 60W of power, but unlike USB-PD, it does not support both power and data transmission, nor does it support dynamic selection of power supply during charging. See the USB-PD 2.0 specification for details.
11. Does the CCGx Type-C controller support overvoltage protection (OVP) and overcurrent protection (OCP) functions?
Cypress different series of products have OCP, OVP function is different, CCG3 has independent OCP, OVP hardware, other products can be selected according to the accuracy you need, you can refer to the datasheet.
12. Does CCGx support all power configurations?
The Cypress USB Type-C controller can be customized to support any of the power settings defined in the USB-PD specification.
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