Grinberg at 12:16, 23 May 2016

2016-05-23T12:16:42Z

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== Description ==
[[Image:SB_SOM_topview2.jpg|thumb|right|alt=SB-SOM top view|<div align="center">SB-SOM top view</div>]]
[[Image:SB_SOM_bottomview2.jpg|thumb|right|alt=SB-SOM bottom view|<div align="center">SB-SOM bottom view</div>]]

Connector P3 is a standard micro-USB3.0 type-AB connector.
Connector P3 is available with all SB-SOM board configurations/revisions.
The interface accessible through connector P3 is derived from system-on-module pins 174, 176, 178, 182, 184, 188 and 189.
In most cases system-on-module implements a USB (host/gadget) interface at these pins.

Most common usage of this connector is outlined in the sub-chapters below.
{{note|Please refer to SB-SOM carrier board schematics and system-on-module hardware reference manual for pin functions, connector pinout and other details on your specific system.}}

=== USB OTG/Dual-Role operation ===
If P3 enables access to system-on-module implemented OTG/Dual-Role USB port (this is the most common case) the following two modes of operation are possible (operation mode is in most cases selected by software):
# '''Gadget Mode''': SB-SOM enables system-on-module operation in USB gadget mode (if supported by system-on-module) when connected to a standard USB2.0 / USB3.0 port on a host system (such as a standard PC) using a standard USB2.0/3.0 to micro-USB2.0/3.0 cable.
# '''Host Mode''': SB-SOM enables system-on-module operation in USB host mode allowing connection of USB gadgets (such as a disk-on-key, USB Keyboard, etc..) to the P3 connector through an appropriate adapter.
<blockquote>
{| border="1" cellspacing="1" cellpadding="3" style="border-collapse:collapse"
! colspan=4 | CompuLab adapters compatible with P3 for host operation
|-
! USB standard
! CompuLab P/N
|-
| USB3.0
| 199D10490
|-
| USB2.0
| 199D10290
|-
|}
</blockquote>

=== USB battery charging ===
Connector P3 can be used for  main battery (at  connector P19) charging instead of charging from a DC power source at [[SB-SOM:_Connectors:_J6_and_J8|the main power supply connector]].
This functionality relies on system-on-module hardware support for USB charger detection and SW support to enable/manage/monitor the charging process.

== Connector Data ==
<blockquote>
{| border="0" cellspacing="1"
| valign="top" |
{| border="1" cellspacing="1" cellpadding="3" style="border-collapse:collapse"
! colspan=4 | P3 connector
|-
! Manufacturer
! MFG P/N
|-
| GCT
| USB3125-30-A
|-
|}
|
|
{| border="1" cellspacing="1" cellpadding="3" style="border-collapse:collapse"
! P3 mating plugs
|-
| Standard micro-USB2.0 type-B plug
|-
| Standard micro-USB2.0 type-A plug
|-
| Standard micro-USB3.0 type-B plug
|-
| Standard micro-USB3.0 type-A plug
|-
|}
|}
</blockquote>

[[Category:SB-SOM]]

SB-SOM: Connectors: P3 - Revision history

Grinberg at 12:16, 23 May 2016