Intel Atom processors are a SoC or system on a chip. Which means they put everything including the kitchen sink onboard the CPU. So there is often devices on these smaller netbooks not utilized. Show
On my ASUS X205TA not only do I have a USB3.0 controller that shows up but in not broken out there is also a hardware com1 port. If you look at the datasheet for the Intel Atom Z3735F processor in these both devices likely exist on the CPU chip itself, USB for sure and serial port more than likely. Its not that "OEMs are indeed stupid and use USB 3.0 controllers, but use 2.0 ports." Its more often that the engineers had a price point and a feature list they were given. They just did not utilize it for cost or space considerations. Intel is not going to make 8 versions of a CPU with different configurations. Often there are unused devices that are not used integrated into various chips and components in most electronics (not just computers). To make things less confusing unused features usually have a way to be turned off via grounding pins or permanently set firmware/BIOS options. Sometimes manufactures don't do it, can't do it, or planned to have that feature and it gets hastily taken off to save space or cost at the last minute. One common example of this is most newer i3/i5/i7 Intel processors support up to 4 monitors while many motherboards only have 1 monitor connector. It is becoming more common for motherboards with integrated graphics to have 2 and sometimes 3 monitor connectors but there still are not that many motherboards that break out all 4 display ports. What you're seeing is common with newer hardware at all levels. Skip To Main Content
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Support for Intel® USB 3.0 eXtensible Host Controller Driver/apps/intel/support/template/supportDynamicHubPage Support information for Intel® USB 3.0 eXtensible Host Controller Driver Compatibility Connectivity Error Messages Identify My Product Install & Setup Product Codes & Spare Parts Product Information & Documentation Troubleshooting Warranty & RMA Maintenance & Performance Product Comparison Popularity Last Reviewed Category No results found for /apps/intel/support/template/supportDynamicHubPage
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Characters remaining: 500 We appreciate all feedback, but cannot reply or give product support. Please do not enter contact information. If you require a response, contact support. Thank you Can I remove Intel R USB 3.0 eXtensible Host Controller?Look for "Intel(r) USB 3.0 eXtensible Host Controller Driver" and manually uninstall it. And you're good to go.
What is USB host controller driver?A USB host controller driver controls the way that peripheral devices communicate with a computer's main system. The driver establishes contact between a USB device, such as a keyboard or printer, and ensures that the computer's operating system recognizes it.
What is USB root hub usb3?- USB Root Hub monitors each port and manages power. - eXtensible host controller arbitrates the USB bus communication. The eXtensible host controller is capable of interfacing with USB 3. x, 2.0 and 1. x and so shouldn't place restrictions on your peripherals.
Is USB 2.0 an enhanced host controller?A USB 2.0 host controller has one high-speed Enhanced Host Controller Interface (EHCI) and one or more OpenHCI Host Controller Interface (OHCI) or Universal Host Controller Interface (UHCI) embedded controllers.
What is xDCI?USB Dual Role Support - eXtensible Device Controller Interface (xDCI) Controller.
What is usb3 xHCI?The Synopsys USB 3.0 xHCI Host Controller is a set of synthesizable soft IP that ASIC/FPGA designers can use to implement a complete USB 3.0 Host for 5 Gbps speeds. The USB 3.0 Host Controller compliant with the specifications for SuperSpeed, High-Speed, Full-Speed, and Low-Speed USB speeds.
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