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VIA VL806 – 2 Port USB 3.0 Host Controller

The VIA VL806 is a single chip USB 3.0 Host controller which implements the xHCI 1.0 specification, and enables a PCI Express equipped platform to interface with USB Super-Speed (5 Gbps), High-Speed (480 Mbps), Full-Speed (12 Mbps), and Low-Speed (1.5 Mbps) devices. The root hub consists of two downstream facing ports enabling the simultaneous operation of multiple peripheral devices.

The VIA VL806 implements eXtensible Host Controller Interface (xHCI) 1.0 Specification and USB Battery Charging 1.2 Specification, and is fully backward compatible with USB 2.0 and 1.1. VL806 supports both Windows 8 and Linux via in-box drivers. VL806 also enables native support for UASP and USB Debugging Port functionality. VIA VL806 has a PCI Express 2.0 x1 interface and is perfectly suited for PC and embedded host applications.

Block Diagram

Key Features

  • Compliant to Universal Serial Bus 3.0 Specification Revision 1.0
  • Compliant to Universal Serial Bus 2.0 Specification
  • Compliant to eXtensible Host Controller Interface (xHCI) Specification Revision 1.0
  • Support Legacy USB Function
  • In-house USB PHY employs advanced CMOS process to reduce power consumption
  • Compliant with PCI Express Base Specification 2.0
  • Support Battery Charging Specification
  • Firmware upgrade options include integrated firmware in system BIOS
  • Software
    • Initial Driver Support for Windows 8,7, Vista, and XP
    • USB Attached SCSI Protocol (UASP)
    • Support various Linux kernels

Target Applications

  • Desktop / Notebook motherboard on-board controller
  • Server motherboard on-board controller
  • Docking system
  • PCI Express / PCI Card Adapter
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