SBC-C41-pITX
SBC-C41-pITX User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R./S.B. - Reviewed by M.B. Copyright © 2021 SECO S.p.A.
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3.3.5
USB Connectors
The SBC-C41 board offers the possibility of connecting to many standard USB
ports.
USB 3.0 ports are carried to a double type-A USB 3.0 receptacle, CN17, type
Winning p/n WDU3R-18F1B4PBUN3 or equivalent.
More specifically, USB 3.0 port #0 is carried to the upper USB receptacle of
CN17, while USB 3.0 port #1 is carried to the lower USB receptacle of CN17.
There are also two additional USB 2.0 ports (USB #4 and USB #5), which are
hosted on a 9-pin p2.54mm pin header, h= 6mm, type NELTRON p/n 2213S-
10G-E9 or equivalent, with the pinout shown in the tables on the left (it is a
common pinout for USB headers in PC motherboards).
All USB ports
’
voltages (+5V
USBx
) are derived from +5V_ALW standby voltages. This means that
the ports can be powered also when the OS is in Suspend-to-RAM (S3) state in order to support
(if enabled) e the
“
Wake-Up on USB
”
functionality.
Signal description:
/USB_H1-: USB Port #1 differential pair; it is managed by
xHCI controller.
US/USB_SSRX1-: USB Super Speed Port #1 receive differential pair; it is managed by
xHCI controller.
US/USB_SSTX1-: USB Super Speed Port #1 transmit differential pair; it is managed by
xHCI controller.
/USB_H2-: USB Port #2 differential pair; it is managed by
xHCI controller.
USB 3.0 ports Type-A double receptacle - CN17
Pin Signal
Pin Signal
1
+5V
USB1
10
+5V
USB0
2
USB_H1-
11
USB_H0-
3
12
4
GND
13
GND
5
USB_SSRX1-
14
USB_SSRX0-
6
US
15
US
7
GND
16
GND
8
USB_SSTX1-
17
USB_SSTX0-
9
US
18
US
Dual USB 2.0 Internal Header #4 #5 CN18
Pin Signal
Pin Signal
1
+5V
USB4
2
+5V
USB5
3
USB_P4-
4
USB_P5-
5
6
7
GND
8
GND
10
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