Kontron KTHM76-mITX - Manual (Page 43)

KTQM77 – KTHM76 Users Guide
KTD-N0850-F Page 43
6.6 USB Connectors (USB)
The KTQM77 board contains two EHCI (Enhanced Host Controller Interface) host controllers (EHCI1
and EHCI2) that support up to fourteen USB 2.0 ports allowing data transfers up to 480Mb/s. Legacy
Keyboard/Mouse and wakeup from sleep states are supported. Over-current detection on all fourteen
USB ports is supported.
Note that four USB 3.0 ports are shared with four of the USB 2.0 ports (USB0 – USB3) from the EHCI1.
The following USB ports are available on Internal Pinrows:
USB Port 6 and 7 (KTQM77/mITX only) (via EHCI1) are supplied on the USB6/7 internal pinrow
FRONTPNL connector.
USB Port 8 and 9 (via EHCI2) are supplied on the USB8/9 internal pinrow connector.
USB Port 10 and 11 (via EHCI2) are supplied on the USB10/11 internal pinrow connector.
USB Port 12 and 13 (via EHCI2) are supplied on the USB12/13 internal pinrow connector.
Note: It is required to use only HiSpeed USB cable, specified in USB2.0 standard:
6.6.1 USB Connector 6/7
See Frontpanel Connector (FRONTPNL) description (KTQM77/mITX only).
6.6.2 USB Connector 8/9 (USB8/9) (J10)
USB Ports 8 and 9 are supplied on the internal USB8/9 pinrow connector J10.
Note Type Signal PIN Signal Type Note
1 PWR 5V/SB5V 1 2 5V/SB5V PWR 1
IO USB8- 3 4 USB9- IO
IO USB8+ 5 6 USB9+ IO
PWR GND 7 8 GND PWR
NC KEY 9 10 NC NC
Signal Description
USB8+ USB8-
USB9+ USB9-
Differential pair works as Data/Address/Command Bus.
5V/SB5V
5V supply for external devices. SB5V is supplied during powerdown to allow
wakeup on USB device activity. Protected by resettable 1A fuse covering both USB
ports.
Connector Definitions
Internal Connectors