Usb Connectors (Io Area) - Kontron KTH81/mITX User Manual

KTD-N0882-I Page 35 IO-Area Connectors

USB Connectors (IO Area)

6.3
The KTQ87 board contains two EHCI (Enhanced Host Controller Interface) and one XHCI (Extensible Host
Controller Interface). The two EHCI controllers, EHCI1 and EHCI2, supports up to fourteen USB 2.0 ports
allowing data transfers up to 480Mb/s. The XHCI controller supports six USB 3.0 ports allowing data
transfers up to 5Gb/s. The six USB 3.0 ports are shared with four of the USB 2.0 ports (USB0 – USB3) from
the EHCI1.
Note: Not all USB 2.0 and USB 3.0 ports are physically connected to the board.
The KTQ87/mITX has total of 10 USB ports where four ports support USB 3.0 or USB 2.0 via Rear IO
connectors. The KTH81/mITX has total of 10 USB ports where two ports support USB 3.0 or USB 2.0 via Rear
IO connectors (USB port 2 & 3 in Rear IO only supports USB 2.0).
The KTQ87/Flex has total of 12 USB ports where four ports support USB 3.0 or USB 2.0 via Rear IO
connectors. The KTH81/mITX has total of 10 USB ports where two ports support USB 3.0 or USB 2.0 via Rear
IO connectors (USB port 2 & 3 in Rear IO only supports USB 2.0).
Legacy Keyboard/Mouse and wakeup from sleep states are supported. Over-current detection on all USB
ports is supported. The following USB connectors are available in the IO Area.
USB Port 0 and 1 (via EHCI1/XHCI) are supplied on the combined USB0, USB1 and LAN2 connector.
USB Port 2 and 3 (via EHCI1/XHCI) are supplied on the combined USB2, USB3 and LAN1 connector.
For USB2.0 cabling it is required to use only HiSpeed USB cable, specified in USB2.0 standard:
For USB3.0 cabling it is required to use only HiSpeed USB cable, specified in USB3.0 standard:
KTQ87/KTH81 Users Guide