The Source supplies pull-up resistors (Rp) on CC1 and CC2 and monitors both to detect a Sink. The presence of an Rd pull-down resistor on either pin indicates that a Sink is being attached. The value of Rp indicates the initial USB Type-C Current level supported by the host. The Sou...
USB Type-C 所需的终端电阻器(Rp、Rd、Ra) 面向下游的端口 (DFP), 如主机, 在其 CC 引脚 (CC1 和 CC2) 上暴露上拉式终止(Rp)。面向端口(UFP)的上游端口(如外围端口)在其 CC 引脚上暴露下拉式终止(Rd)。CC 引脚上的 Rp 和 Rd 终止的目的是识别 DFP 与 UFP 连接以及用于通信的 CC 引脚。为此,...
Table 2: Ra: min and max impedance When the connection detection phase is complete, Infineon’s CCG1 and CCG2 devices have the ability to remove the Ra resistor, which will reduce the overall power dissipation of a Type-C system design. Community Translation:USB Type-C...
其中SBU1,SBU2,CC1,CC2是传统的USB接口所没有的信号。CC是USB TYPE-C接口的灵魂所在,承载了TYPE-C连接过程中的传输方向确认和正反插确认功能,以及USB PD BCM码信号传输功能,实现负载的功能配置。两根线CC线,当其中一根CC作为TYPE-C接口的配置信号时,另一个CC则作为电缆上EMARKER芯片的供电电源。剩下的SBU1和...
2.1 USB Type-C® vocabulary The terminology commonly used for USB Type-C® system is: • Source: A port power role. Port exposing Rp (pull-up resistor, see Figure 3. Pull up/down CC detection) on CC pins (command control pins, see Section 4 CC p...
NX20P0407是一款单芯片USB Type-C端口保护器件,为CC1/CC2和SBU1/SBU2引脚提供28V的VBUS过压保护。USB Type-C通过电源传输协议允许VBUS电压增加到20V。 由于Type-C连接器的接触引脚间距比微型USB连接器小25%,因此在连接器弯曲和滑动时可能会导致CC1/2和SBU1/2引脚与VBUS短路。湿气或细小的灰尘也可能导致20V的VB...
A USB Type-C source will always include a MOSFET switch for enabling/disabling the VBUS voltage. It can also include a VBUS current sense, to check for over-current conditions, and a VBUS discharge function. Both Source and Sink will include a CC1/CC2 line detection circuit. The CC (Ch...
USB-C接口具有三个主要功能: (1)允许设备协商并选择通过接口的适当功率水平。 (2)具有可翻转的连接器。接口的设计使得插头可以相对于插座翻转。 (3)支持USB 2.0,USB 3.0和USB 3.1 Gen 2标准。 (4)TypeC基于CC1/CC2通讯支持USB PD协议,高通基于D+/D-通信支持高通快充HVDCP高通快充握手协议,前提是基于BC1.2协...
You can also detect if the cable is flipped and what type of device is connected at the other end (Host or Device). Microchip has a nice explanation of how to read CC1 & CC2 here.UFP, DFP or DRP?If you are making a Host device (something that is a source of power for other ...
Place a 0.1-µF capacitor on this pin to ground Connector side of the CC1 OVP FET. Connect to either CC pin of the USB Type-C connector Connector side of the CC2 OVP FET. Connect to either CC pin of the USB Type-C connector Short to C_CC2 if dead battery resistors are needed....