Seco SBC-A62-J User Manual page 28

Optional USB internal
connector - J24
Pin Signal
1 +5V
USB4
2 USB_P4-
3 USB_P4+
4 GND
Micro-B Client connector - CN3
Pin Signal
1 +5V
CLIENT
2 USB_OTG-
3 USB_OTG+
4 USB_ID
5 GND
3.3.7 S-ATA connectors (i.MX6DP and i.MX6Q versions only)
S-ATA Connector - CN9
Pin Signal
1 GND
2 SATA_TXM
3 SATA_TXP
4 GND
5 SATA_RXM
6 SATA_RXP
7 GND
SBC-A62-J
SBC-A62-J User Manual - Rev. First Edition: 1.0 - Last Edition: 2.3 - Author: S.B. - Reviewed by N.P. Copyright © 2016 SECO S.r.l.
Port#4 of SMSC USB2514 Hub controller is carried to an internal (optional) connector which can be used
for the connection of an optional USB adapter cable.
The dedicated connector is a 4-pin male connector, type MOLEX p/n 89400-0420 or equivalent, with
pinout shown in the table on the left.
Mating connector: MOLEX 87369-0400 crimp housing with MOLEX 50212 crimp terminals.
Signals description:
USB_P4+/USB_P4-: USB Port #4 differential pair; managed by SMSC USB2514 Hub controller's Downstream Port #4.
+5V voltage is derived from +5V_SB power rail through a dedicated 500mA fuse.
USB
Finally, USB On-The-Go interface, native for NXP i.MX6 processor, is carried out through a standard
micro-B connector, described in the table on the left.
Since the connector is micro-B type, the USB port available on it can be used only on Client mode.
This means that, +5V is a power input of SBC-A62-J board from the external Host.
CLIENT
USB_OTG-/USB_OTG+: USB OTG differential pair, directly managed by NXP i.MX6 USB OTG port.
USB_ID: USB Identification pin. 3P3V electrical level with a 4K7Ω pull-up resistor
The NXP i.MX6DP and i.MX6Q processors embed a SATA Controller, which offers a SATA II, 3.0 Gps interface.
Therefore, on boards equipped with these processors there is a standard male S-ATA connector for the
connection of external Mass Storage Devices.
Here following the signals related to SATA interface:
SATA_TXM/SATA_TXP: Serial ATA ChannelTransmit differential pair
SATA_RXM/SATA_RXP: Serial ATA ChannelReceive differential pair
10nF AC series decoupling capacitors are placed on each line of SATA differential pairs.
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