News and Events

Composition of USB4 hub

Views : 117
Author : PURPLELEC
Update time : 2024-03-19 09:55:31
  Composition of USB4 hub:
USB4 hub
  1. Enhanced super speed hub
  The Enhanced SuperSpeed hub responds to data initiated from the USB3 downstream port of the USB4 host through the USB3 upstream port of the USB4 hub. At the same time, select one of the two USB3 downstream ports of the USB4 hub to transmit data to the USB4 device. Which one to choose depends on which one detects the USB4 device. In short, one USB 3.2 extends multiple USB 3.2.
  2. USB 2.0 hub
  A USB 2.0 hub is responsible for responding to USB 2.0 data from the host and extending multiple USB 2.0 ports for use by external devices.
  3. PCIe switch
  The PCIe switch responds to data initiated from the PCIe downstream port of the USB4 host through the PCIe upstream port of the USB4 hub. Also select one of the two PCIe downstream ports of the USB4 hub to transmit data to USB4 external devices. Which one is chosen depends on which USB4 external device is detected. In short, one PCIe extends to multiple PCIe.
  4. Hub protocol adapter
  A USB3 upstream port adapter and a PCIe upstream port adapter. The two separate the USB 3.2 and PCIe data passed by USB4 from the USB4 host and pass them to the Enhanced SuperSpeed hub and PCIe switch respectively. Two USB3 downstream port adapters, two PCIe downstream port adapters.
  The USB3 downstream port adapter and the PCIe downstream port adapter integrate the USB3 data transmitted by the enhanced superspeed hub and the PCIe data transmitted by the PCIe switch in a certain way, and finally pass them to the USB4 port.
  The DisplayPort output adapter can be directly connected to the DisplayPort interface, and then connected to a monitor that supports DisplayPort or can convert DisplayPort signals to display video.
  5. Equipment router
  Passing USB4 data from the host relies on the Time Management Unit (TMU) to allocate and synchronize time.
USB4 hub