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3.3.6
USB Connectors
The SBC-C90 board offers the possibility of connecting to many standard USB ports.
USB 3.0 ports Type-A double receptacle - CN12
Pin
Signal
Pin
1
+5V
USB1
2
USB_H1-
3
USB_H1+
4
GND
5
USB_SSRX1-
6
USB_SSRX1+
7
GND
8
USB_SSTX1-
9
USB_SSTX1+
Dual USB 2.0 Internal Header #0 #3
Pin
Signal
Pin
1
+5V
USB0
3
USB_P0-
5
USB_P0+
7
GND
Signal description:
USB_H1+/USB_H1-: USB 2.0 Port #1 differential pair
USB_SSRX1+/USB_SSRX1-: USB Super Speed Port #1 receive differential pair
USB_SSTX1+/USB_SSTX1-: USB Super Speed Port #1 transmit differential pair
SBC-C90
SBC-C90 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by C.M. Copyright © 2021 SECO S.p.A.
Signal
10
+5V
USB2
11
USB_H2-
12
USB_H2+
13
GND
14
USB_SSRX2-
15
USB_SSRX2+
16
GND
17
USB_SSTX2-
18
USB_SSTX2+
CN13
Signal
2
+5V
USB3
4
USB_P3-
6
USB_P3+
8
GND
10
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USB 3.1 Gen2 ports are carried to a double type-A USB 3.0 receptacle, CN12,
type Würth Elektronik p/n 692141030100 or equivalent.
More specifically, USB 3.1 port #1 is carried to the lower USB receptacle of
CN12, while USB 3.1 port #2 is carried to the upper USB receptacle of CN12.
Since this connector is a standard type receptacle, it 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.
There are also two additional USB 2.0 ports (USB #0 and USB #3), which are hosted on a 9-
pin p2.54mm pin header, h= 6mm, type NELTRON p/n 2213SM-10G-E9-CR 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
) are derived from +5V_ALW standby voltages. This means that
USBx
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.
27
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