X86
UDOO X86 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: S.B. - Reviewed by M.B. Copyright © 2017 SECO S.r.l.
24
3.3.2
USB ports
The Intel
®
Braswell family of SoCs used on UDOO x86 board can manage up to four USB SuperSpeed (i.e., USB 3.0 compliant) ports and five High Speed (i.e.
USB 2.0 compliant) ports. There is only one dedicated High Speed port, the other four ports are shared with the SuperSpeed ports, i.e. they can be used either by
USB 2.0 or USB 3.0.
The USB 3.0 ports #0 and #1 are available on two single USB connectors, CN6 and
CN7, placed on the same side of the PCB (
“
Frontal
”
), while USB 3.0 port #2 is available
on USB connector CN8 placed on the opposite side (
“
Rear
”
).
“
Rear
”
and
“
Frontal
”
terms
are used considering a possible application of this board with an enclosure). The
connectors used are standard USB 3.0 type-A receptacles.
Since these connectors are standard type-A receptacle, they can be connected to all types of USB 1.1
/ USB 2.0 / USB 3.0 devices using standard-A USB 3.0 or USB 2.0 plugs.
For USB 3.0 connections it is mandatory the use of SuperSpeed certified cables, whose SuperSpeed
differential pairs are individually shielded inside the global cable
’
s external shielding.
Signal description:
/USB_P0-: USB 2.0 Port #0 differential pair.
US/USB_SSRX0-: USB Super Speed Port #0 receive differential pair.
US/USB_SSTX0-: USB Super Speed Port #0 transmit differential pair.
/USB_P1-: USB 2.0 Port #1 differential pair.
US/USB_SSRX1-: USB Super Speed Port #1 receive differential pair.
US/USB_SSTX1-: USB Super Speed Port #1 transmit differential pair.
USB 3.0 port#0 type A receptacle - CN6
Pin Signal
Pin Signal
1
+5V
USB0
5
USB_SSRX0-
2
USB_P0-
6
US
3
7
GND
4
GND
8
USB_SSTX0-
9
US
USB 3.0 port#1 type A receptacle - CN7
Pin Signal
Pin Signal
1
+5V
USB1
5
USB_SSRX1-
2
USB_P1-
6
US
3
7
GND
4
GND
8
USB_SSTX1-
9
US
USB 3.0 port #2 type-A receptacle - CN8
Pin Signal
Pin Signal
1
+5V
USB2
5
USB_SSRX2-
2
USB_P2-
6
US
3
7
GND
4
GND
8
USB_SSTX2-
9
US
