4 usb ports overview, Usb ports overview – Kontron KTA70M-mITX User Manual
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KTD-N0861-B
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System Specification
KTA70M/mITX Users Guide
KTA70M/mITX Users Guide
3.4
USB ports overview
The KTA70M board contains two pairs of EHCI (Enhanced Host Controller Interface) and OHCI (Open Host
Controller Interface) in order to support up to 9 USB1.1/USB2.0 devices and further more two xHCI
(Extensible Host Controller Interface) to support up to 4 USB3.0 devices.
The OHCI controllers support USB1.1, Full-Speed (12Mbps) and Low-Speed (1.5Mbps).
The EHCI controllers support USB2.0, High-Speed (480Mbps).
The xHCI controllers support USB3.0, USB2.0 and USB 1.1, Super-Speed (5.0Gbps), High-Speed
(480Mbps), Full-Speed (12Mbps) and Low-Speed (1.5Mbps)
Legacy Keyboard/Mouse and wakeup from sleep states are supported. Over-current detection on all USB
ports except USB2.
USB #
USB standard
Connector location
HCI
Note
USB0
USB1
USB2.0 /USB1.1
Frontpanel (J5)
OHCI1/EHCI1
USB2
USB2.0 /USB1.1
mPCIe (J38)
OHCI1/EHCI1 No over current detection
USB3
USB2.0 /USB1.1
-
-
USB3 doesn’t exist
USB4
USB2.0 /USB1.1
Pin row (J16)
OHCI1/EHCI1
USB5
USB2.0 /USB1.1
Pin row (J16)
OHCI2/EHCI2
USB6
USB7
USB8
USB9
USB2.0 /USB1.1
USB quad stack (J20)
Rear IO
OHCI2/EHCI2
USB10
USB11
USB3.0/USB2.0/USB1.1 USB3.0 dual stack (J15)
Left - Rear IO
xHCI1
USB12
USB13
USB3.0/USB2.0/USB1.1 USB3.0 dual stack (J14)
Right - Rear IO
xHCI2
Notes:
In order to meet the requirements of USB standard, the 5V input supply must be at least 5.00V.
The contacts for USB devices are protected and suitable to supply USB devices with a maximum input current of
1000mA.
Do not supply external USB devices with higher power dissipation through these pinsTo protect the external power
lines of peripheral devices make sure that
- the wires have the right diameter to withstand the maximum available current.
- to enclosure of the peripheral device fulfills the fire-protecting conditions of IEC/EN 60950.