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

KTD-N0882-I

USB Connectors (USB)

7.7
The KTQ87 board contains two EHCI (Enhanced Host Controller Interface) host controllers (EHCI1 and
EHCI2) and a XHCI (Extensible Host Controller Interface). The EHCI controllers support up to fourteen USB
2.0 ports allowing data transfers up to 480Mb/s and the XHCI controller supports up to six USB 3.0 ports
allowing data transfers up to 5Gb/s. Four of the USB 3.0 ports are shared with four of the USB 2.0 ports
(USB0 – USB3).
Note: Not all USB 2.0 and USB 3.0 ports are physically connected to the board.
Legacy Keyboard/Mouse and wakeup from sleep states are supported. Over-current detection on all
fourteen USB ports is supported.
Notes:
On KTQ87, the four USB 3.0 ports (USB0 – USB3) are shared with four of the EHCI1 USB 2.0 ports.
On KTH81, the two USB 3.0 ports (USB0 – USB1) are shared with two of the EHCI1 USB 2.0 ports.
KTH81 only supports two USB 3.0 ports.
See chapter "USB Connectors (IO Area)" for more information on USB0 – USB3.
The following USB ports are available on Internal Pinrows:
USB 4 & 5 (via EHCI1) are supplied on USB4/5 internal pinrow connector (USB1).
USB 6 & 7 (via EHCI1) are supplied on USB6/7 internal pinrow connector (USB2). (KTQ87/Flex only).
USB 8 & 9 (via EHCI2):
Flex: are supplied on the USB8/9 internal pinrow connector (USB3).
mITX: USB8 is supplied on the mPCIe slot and USB9 is supplied on mSATA slot.
USB Port 10 and 11 (via EHCI2) are supplied on the USB10/11 internal pinrow FRONTPNL connector.
Note: It is required to use only HiSpeed USB cable, specified in USB2.0 standard:
Page 44
KTQ87/KTH81 Users Guide
Internal Connectors