SBC-992-pITX
SBC-992-pITX User Manual - Rev. First Edition: 1.0 - Last Edition: 2.0 - Author: S.B. - Reviewed by G.G Copyright © 2016 SECO S.r.l.
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3.3.2
USB ports
AMD G-Series SOC is able to manage up to 10 USB ports, which are managed by three
EHCI/OHCI controllers (for USB 2.0 and USB 1.1 functionalities) and one xHCI controller
(which manages two ports able to work in USB 3.0 / USB 2.0 and USB 1.1 mode).
On SBC-992-pITX board, four USB 2.0 ports and the two USB 3.0 ports are used for
standard type A connectors.
USB 3.0 ports are available on a double USB connector, CN18, which is
placed near the Gigabit Ethernet connectors.
The connector used is a double type-A USB 3.0 receptacle, type
Winning p/n WDU3R-18F1B4PBUW3 or equivalent.
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.
Managed by OHCI Controller #1, there
are also four additional USB 2.0 ports,
which are hosted on two 9-pin
p2.54mm pin headers ,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_U
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.
For the connection of standard devices to this pin headers, it is needed an adapter cable. SECO can optionally provide for such an adapter cable, as a part of the
accessory kit p/n CABKIT992 (please check chapter 5.2.1 for further details).
Signal description:
Double USB 3.0 type A receptacle - CN18
Pin Signal
Pin Signal
1
+5V
USB0
10
+5V
USB1
2
USB_P0-
11
USB_P1-
3
12
4
GND
13
GND
5
USB_SSRX0-
14
USB_SSRX1-
6
US
15
US
7
GND
16
GND
8
USB_SSTX0-
17
USB_SSTX1-
9
US
18
US
USB 2-3 pin header - CN17
USB 4-5 pin header - CN16
Pin Signal
Pin Signal
Pin Signal
Pin Signal
1
+5V
USB2
2
+5V
USB3
1
+5V
USB4
2
+5V
USB5
3
USB_P2-
4
USB_P3-
3
USB_P4-
4
USB_P5-
5
6
5
6
7
GND
8
GND
7
GND
8
GND
10
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10
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