Kontron mITX-E3826 User manual

The pulse of innovation
mITX-E38
KTD-N0903-A

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Table of Contents
KTQM87/mITX Users Guide
mITX-E38 Users Guide
» Table of Contents «
1Introduction ...........................................................................................5
2Installation Procedure ..............................................................................6
Installing the Board ................................................................................................................ 62.1
Requirements IEC60950 ........................................................................................................... 72.2
3System Specifications ...............................................................................8
Component main data.............................................................................................................. 83.1
System overview ....................................................................................................................113.2
Integrated Premounted Cooler..................................................................................................123.3
Power Consumption................................................................................................................133.4
4Connector Locations ............................................................................... 14
mITX-E38 – Frontside and Rear IO..............................................................................................144.1
5Connector Definitions ............................................................................. 15
6Rear IO Connectors................................................................................. 16
DC Power Jack Connector (Ext12V – J35).....................................................................................166.1
DP Connectors (DP1 – J24, DP2 – J22) ........................................................................................176.2
USB Connectors (IO Area)........................................................................................................186.3
USB Connector 1/2 (USB1 / USB2 – J6) ........................................................................................................19
USB Connector 0 (USB0 – J20) ....................................................................................................................19
Ethernet Connectors (LAN1 – J4 and LAN2 – J5) ...........................................................................206.4
Audio Jack Connectors (Speakers – J2, Line-In –J23) ....................................................................216.5
7Internal Connectors................................................................................ 22
DC Power Internal Connector (Int12V – J7)..................................................................................227.1
Power Out Connector (PowerOut - J32) .......................................................................................237.2
Internal Audio Connectors .......................................................................................................247.3
Headphone Connector (Headphone – J34) ....................................................................................................24
Mic Connector (MIC – J17)..........................................................................................................................24
SPDIF Connector (SPDIFout – J33) ...............................................................................................................24
Fan for SOC and System (Fan SOC – J29, Fan Sys – J28) ..................................................................257.4
PS/2 Keyboard and Mouse connector (KBD/MSE) (J26) ..................................................................267.5
LVDS Flat Panel Connector (LVDS – J31)......................................................................................277.6
SATA (Serial ATA) Disk interface (SATA0 – J15, SATA1 – J1).............................................................287.7
Internal USB Connectors (USB6 – J21) .......................................................................................297.8
Serial COM Ports (COM1-6, J19, J18, J37, J38, J10, J9)..................................................................307.9
Front Panel Connector (FRONTPNL - J12).....................................................................................317.10
Feature Connector (Feature – J27).............................................................................................327.11
Clear CMOS Settings” (Clear CMOS – J3) ......................................................................................347.12
Always On connector (Always On - J36).......................................................................................357.13
SPI Connector (SPI – J16)........................................................................................................367.14

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mITX-E38 Users Guide
LPC Connector (LPC - J30)........................................................................................................377.15
XDP Debug Port (XDP – J40) .....................................................................................................387.16
8Slot Connectors ..................................................................................... 39
PCI-Express x1 Connector (PCIex1 – J8) ......................................................................................398.1
SD card slot (SD Card – J25) .....................................................................................................398.2
mPCIe/mSATA connector (mPCIe or mSATA & USB – J13)................................................................408.3
9Onboard - & mating connector types .......................................................... 41

KTD-N0903-A Page 2 Document Details
mITX-E38 Users Guide
Document Revision History
Copyright Notice
Copyright 2013, KONTRON Technology A/S, ALL RIGHTS RESERVED.
No part of this document may be reproduced or transmitted in any form or by any means, electronically or
mechanically, for any purpose without the express written permission of KONTRON Technology A/S.
Trademark Acknowledgement
Brand and product names are trademarks or registered trademarks of their respective owners.
Disclaimer
KONTRON Technology A/S reserves the right to make changes without notice to any product, including
circuits and/or software described or contained in this manual in order to improve design and/or
performance.
Specifications listed in this manual are subject to change without notice. KONTRON Technology assumes no
responsibility or liability for the use of the described product(s), conveys no license or title under any
patent, copyright or mask work rights to these products and makes no representations or warranties that
these products are free from patent, copyright or mask work right infringement unless otherwise specified.
Applications that are described in this manual are for illustration purposes only. KONTRON Technology A/S
makes no representation or warranty that such application will be suitable for the specified use without
further testing or modification.
Revision Date By Comment
A August 21st 2014 MLA Added Cooler info. Improved DC power jack description. Updates. Mating
connectors.
0
April 4th 2014
MLA
Preliminary version

KTD-N0903-A Page 3 Document Details
mITX-E38 Users Guide
Life Support Policy
KONTRON Technology’s PRODUCTS ARE NOT FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR
SYSTEMS WITHOUT EXPRESS WRITTEN APPROVAL OF THE GENERAL MANAGER OF KONTRON Technology A/S.
As used herein:
Life support devices or systems are devices or systems which (a) are intended for surgical implant into body
or (b) support or sustain life and whose failure to perform when properly used in accordance with
instructions for use provided in the labelling can be reasonably expected to result in significant injury to
the user.
A critical component is any component of a life support device or system whose failure to perform can be
reasonably expected to cause the failure of the life support device or system or to affect its safety or
effectiveness.
Warranty
KONTRON Technology warrants its products to be free from defects in material and workmanship during the
warranty period. If a product proves to be defective in material or workmanship during the warranty period
KONTRON Technology will, at its sole option, repair or replace the product with a similar product.
Replacement Product or parts may include remanufactured or refurbished parts or components.
The warranty does not cover:
1. Damage, deterioration or malfunction resulting from:
A. Accident, misuse, neglect, fire, water, lightning or other acts of nature, unauthorized
product modification or failure to follow instructions supplied with the product.
B. Repair or attempted repair by anyone not authorized by KONTRON Technology.
C. Causes external to the product, such as electric power fluctuations or failure.
D. Normal wear and tear.
E. Any other causes which does not relate to a product defect.
2. Removal, installation and set-up service charges.
Exclusion of damages:
KONTRON TECHNOLOGY LIABILITY IS LIMITED TO THE COST OF REPAIR OR REPLACEMENT OF THE PRODUCT.
KONTRON TECHNOLOGY SHALL NOT BE LIABLE FOR:
1. DAMAGE TO OTHER PROPERTY CAUSED BY ANY DEFECTS IN THE PRODUCT, DAMAGES BASED UPON
INCONVENIENCE, LOSS OF USE OF THE PRODUCT, LOSS OF TIME, LOSS OF PROFITS, LOSS OF
BUSINESS OPPORTUNITY, LOSS OF GOODWILL, INTERFERENCE WITH BUSINESS RELATIONSHIPS OR
OTHER COMMERCIAL LOSS, EVEN IF ADVISED OF THEIR POSSIBILITY OF SUCH DAMAGES.
2. ANY OTHER DAMAGES, WHETHER INCIDENTAL, CONSEQUENTIAL OR OTHERWISE.
3. ANY CLAIM AGAINST THE CUSTOMER BY ANY OTHER PARTY.

KTD-N0903-A Page 4 Document Details
mITX-E38 Users Guide
KONTRON Technology Technical Support and Services
If you have questions about installing or using your KONTRON Technology Product, then please notice that
you will find many answers in this Users Guide. To obtain support please contact your local Distributor or
Field Application Engineer (FAE).
Before Contacting Support: Please be prepared to provide as much information as possible:
CPU Board
1. Type.
2. Part Number (find PN on label)
3. Serial Number if available (find SN on label)
Configuration
1. DRAM Type and Size.
2. BIOS Revision (find the version info in the BIOS Setup).
3. BIOS Settings different than Default Settings (refer to the BIOS Setup section).
System
1. O/S Make and Version.
2. Driver Version numbers (Graphics, Network, and Audio).
3. Attached Hardware: Harddisks, CD-Rom, LCD Panels etc.
If the Kontron Technology product seems to be defect and you want to return it for repair, please follow the
guide lines from the following page:
http://kontron.com/services/rma-information/kontron-technology-a-s/

KTD-N0903-A Page 5 Introduction
mITX-E38 Users Guide
1Introduction
This manual describes the mITX-E38 boards made by KONTRON Technology A/S. The boards will also be
denoted E38.
The E38 boards are based on Intel Atom E38xx SOC (System On Chip) and will be available in three versions
having 1, 2 or 4 cores. The differences between the three types of boards are listed in this table:
Feature mITX-E3815 mITX-E3826 mITX-E3845
Bay Trail SOC E3815 (1 core) E3826 (2cores) E3845 (4 cores)
Core speed 1,46GHz 1,46GHz 1,91GHz
Total Design Power 5W 7W 10W
Integrated cooler Passive Passive Active
Graphics 2x DP 2x DP DP + LVDS
Onboard eMMC - - 16GB TLC NAND
SD Card slot - Yes Yes
TPM - - Yes
COM ports 2x RS232 6x RS232 6x RS232
USB
1x USB3.0/2.0
3x USB2.0
1x USB3.0/2.0
3x USB2.0
1x USB3.0/2.0
6x USB2.0
Use of this Users Guide implies a basic knowledge of PC-AT hard- and software. This manual is focused on
describing the E38 board’s special features and is not intended to be a standard PC-AT textbook.
New users are recommended to study the short installation procedure stated in the following chapter
before switching-on the power.
All configuration and setup of the CPU board is either done automatically or manually by the user via the
BIOS setup menus. Only exceptions are the “Clear CMOS” Jumper and the “Always On” jumper.
Latest revision of this manual, datasheet, BIOS, drivers, BSP’s (Board Support Packages), Mechanical
drawings (2D and 3D) can be downloaded from here: http://www.kontron.com/products/boards-and-
mezzanines/embedded-motherboards/

KTD-N0903-A Page 6 Installation Procedure
mITX-E38 Users Guide
Warning: Turn off PSU (Power Supply Unit) completely (no mains power connected to the PSU) or
leave the Power Connectors unconnected while configuring the board. Otherwise components
(RAM, LAN cards etc.) might get damaged. Make sure to use +12V single supply only.
Alternatively use a standard ATX PSU with suitable cable kit and PS_ON# active.
!
2Installation Procedure
Installing the Board2.1
To get the board running follow these steps. If the board shipped from KONTRON has already components
like RAM and CPU cooler mounted, then relevant steps below can be skipped.
1. Turn off the PSU (Power Supply Unit)
2. Insert the DDR3L SODIMM module
For a list of approved DDR3 DIMMs contact your Distributor or FAE. See also chapter “System Memory
Support”.
3. Cooler Installation
Normally the cooler is premounted, but in case not, then make sure the heat paste etc. on the cooler is
intact and cover the full area of the SOC. Connect Cooler Fan electrically to the FAN_CPU connector.
4. Connecting Interfaces
Insert all external cables for hard disk, keyboard etc. A monitor must be connected in order to change
BIOS settings.
5. Connect and turn on PSU
Connect PSU to the board by the Int12V connector or the Ext12V connector. Please note that current
limitations apply, see relevant connector description.
6. Power Button
If the board does not start by itself when switching on the ATX PSU AC mains, then follow these
instructions to start the board. Install the Always On Jumper in the Always On position or toggle the
PWRBTN_IN# signal (available in the FRONTPNL connector), by momentary shorting pins 16
(PWRBTN_IN#) and pin 18 (GND). A “normally open” switch is recommended.
7. BIOS Setup
Enter the BIOS setup by pressing the <F2> key during boot up.
Enter “Exit Menu” and Load Setup Defaults.
Refer to the “BIOS Configuration / Setup“ section of this manual for details on BIOS setup. Please note
that BIOS may boot in UEFI shell, if so then type exit to activate BIOS menu and select Set-up.
Note: To clear all BIOS settings, including Password protection, activate “Load Default BIOS Settings”
Jumper for ⋲10 sec (without power connected).

KTD-N0903-A Page 7 Installation Procedure
mITX-E38 Users Guide
!
Warning
: When mounting
the board to chassis etc. please notice that the board contains
components on both sides of the PCB which can easily be damaged if board is handled without
reasonable care. A damaged component can result in malfunction or no function at all.
8. Mounting the board in chassis
When fixing the Motherboard on a chassis it is recommended using screws with integrated washer and a
diameter of ⋲7mm. Do not use washers with teeth, as they can damage the PCB and cause short circuits.
Requirements IEC609502.2
Take care when designing chassis interface connectors in order to fulfil the IEC60950 standard.
Lithium battery precautions
CAUTION!
Danger of explosion if battery is incorrectly re- placed.
Replace only with same or equivalent type recommended
by manufacturer. Dispose of used batteries according to
the manufacturer’s instruc- tions.
VORSICHT!
Explosionsgefahr bei unsachgemäßem Austausch der
Batterie. Ersatz nur durch den selben oder einen vom
Hersteller empfohlenen gleichwertigen Typ.
Entsorgung gebrauchter Batterien nach Anga- ben des
Herstellers.
ATTENTION!
Risque d'explosion avec l'échange inadéquat de la
batterie. Remplacement seulement par le même ou un
type équivalent recommandé par le producteur.
L'évacuation des batteries usagées conformément à des
indications du fabricant.
PRECAUCION!
Peligro de explosión si la batería se sustituye
incorrectamente. Sustituya solamente por el mismo o
tipo equivalente recomendado por el fabricante.
Disponga las baterías usadas según las instrucciones
del fabricante.
ADVARSEL!
Lithiumbatteri –
Eksplosionsfare ved fejlagtig
håndtering. Udskiftning må kun ske med batteri af
samme fabrikat og type. Levér det brugte batteri tilbage
til leverandøren.
ADVARSEL!
Eksplosjonsfare ved feilaktig skifte av batteri. Benytt
samme batteritype eller en tilsvarende type anbefalt av
apparatfabrikanten.
Brukte batterier kasseres i
henhold til fabrikantens instruksjoner.
VARNING!
Explosionsfara vid felaktigt batteribyte. Använd samma
batterityp eller en ekvivalent typ som rekommenderas av
apparattillverkaren. Kassera använt batteri enligt
fabrikantens instruktion.
VAROITUS!
Paristo voi räjähtää, jos se on virheellisesti asennettu.
Vaihda paristo ainoastaan lalteval- mistajan
suosittelemaan tyyppiln. Hävitä käytetty paristo
valmistajan ohjeiden mukaisesti.
When an interface or connector has a VCC (or other power) pin which is directly connected to a power plane
like the VCC plane:
To protect the external power lines of the peripheral devices the customer has to ensure:
•Wires have suitable rating to withstand the maximum available power.
•That the enclosure of the peripheral device fulfils the fire protecting requirements of IEC60950.

KTD-N0903-A Page 8 System Specification
mITX-E38 Users Guide
3System Specifications
Component main data3.1
Form factor
mITX (miniITX) 170,18 mm by 170,18 mm
Processor
Intel Bay Trail FCBGA1170 Type 3 27x25mm 0.593 Ball Pitch.
Three versions available:
E3815 (1 core), 1,46GHz, 5W
E3826 (2 core), 1,46GHz, 7W
E3845 (4 core), 1,91GHz, 10W
Memory
1x DDR3L SODIMM socket supporting single-channel unbuffered DDR3L 1066/1333MHz
(PC3-8500/PC3-10600). Up to 4GB (Intel specification) however Kontron has qualified
8GB. (ECC not supported).
Flash
eMMC 16GB TLC Nand. E3845 only.
SD card slot
1x SD Card Slot, SD Card 3.0 interface. E3826 and E3845 only.
•Up to 832Mbits per second data rate using up to 4 parallel data lines.
•Transfers the data in following UHS-I modes: HS and DDR50.
•Cyclic Redundancy Check CRC7 for command and CRC16 for data integrity.
•Designed to work with I/O cards, Read-only cards and Read/Write cards.
•Supports Read wait Control. SDIO only validated with WIFI devices.
SATA
2x SATA Gen2 (3.0/1.5Gb/s). SATA1 and SATA2.
Notes: RAID is not supported. SATA1 shared with mSATA, so that if mSATA is installed
then the SATA1 is disabled.
LAN Support
2x 10/100/1000Mbits/s LAN (LAN1 & LAN2) based on Intel®Pearsonville I211AT
•PXE Netboot supported.
•Wake On LAN (WOL) supported
Serial
2x Serial ports (RS232) (COM1 – COM2), via ITE8516
4x Serial ports (RS232) (COM3 – COM6), via ITE8517, E3826 and E3845 only.
USB
•1x USB3.0/2.0 (Rear IO area, single USB port connector)
•2x USB2.0 (Rear IO area, dual USB port connector)
•1x USB2.0 (available in mPCIe slot)
•3x USB2.0 (Front Panel Connector and USB6 connector) E3845 only.
DP
DP (DisplayPort) v1.1a. Intel® Gen7 Graphics, OpenGL 3.0, OpenCL 1.2, DX11, H.264,
MPEG2, MCV, VC-1, VP8.
2x DP (E3815 and E3826)
1x DP (E3845)
LVDS
LVDS panels up to 2 pixels per clock, 24 bit colors (VESA/JEIDA). Based on DP to LVDS
converter type PTN3460BS. E3845 Only.

KTD-N0903-A Page 9 System Specification
mITX-E38 Users Guide
Audio
Audio, 7.1 Channel High Definition Audio Codec using the VIA VT1708S codec.
•Line-in (Blue Jack connector).
•Headphone stereo signals. (Shared Lime Jack and pin-row connector).
•Headphone stereo signals. (Front Panel connector).
•Microphones: MIC1 (MIC connector) and MIC2 (Front Panel connector).
•SPDIF-Out (electrical Interface only).
•On-board speaker (Electromagnetic Sound Generator like Hycom HY-05LF).
Expansion
Capabilities
•1x 1x mPCIe (w. USB2.0 and SIM card slot) (Shared with mSATA)
•1x PCIe x1
•SPI bus routed to SPI connector (BIOS Recovery module interface)
•
DDC/AUX Bus routed to DP connector (Auto detect to DDC when using passive DP
to HDMI or DVI adapters)
Via Feature connector based on ITE IT8516E Embedded Controller via LPC Bus interface
•SMBus, compatible with ACCES BUS and I2C BUS
•18 x GPIOs (General Purpose I/Os)
•DAC, ADC, PWM and TIMER (Multiplexed)
•WAKE UP / Interrupt Inputs (Multiplexed)
•3 Wire Bus for GPIO Expansion (up to 152 GPIOs)
•8 bit Timer output
Hardware
Monitor
Subsystem
•Fan control support Thermal cruise (fixed temperature limit, no BIOS setup).
•Thermal inputs: PCB near SOC temperature (precision +/- 3ºC).
•System temperature sensor (precision +/- 0.5ºC)
•Sleep S5# Indication, (via Feature connector)
•System Powergood Signal, (via Feature connector)
Security
Intel® Integrated TPM 1.2 support. E3845 only.
Power Supply
Unit
+12V single supply via either Vin-Int. (4-pin connector) or Vin-Ext. connector (DC
Connector RA 2mm locking type)
Battery
Exchangeable 3.0V Lithium battery for on-board Real Time Clock and CMOS RAM.
Manufacturer Panasonic / Part-number CR-2032L/BN, CR2032N/BN or CR-2032L/BE.
Approximate 6.2 years retention.
Current draw is less than 4.2µA when PSU is disconnected and 0 µA in S0 – S5.
Note that Intel specifies that battery must be connected, however it is unspecified what
is the risk of not using battery. When battery is not connected, Kontron has not been
able to find any problems except for RTC not running.
CAUTION: Danger of explosion if the battery is incorrectly replaced. Replace only
with the same or equivalent type recommended by the manufacturer. Dispose of
used batteries according to the manufacturer’s instructions.
OS support
(planned)
Windows 7 (32 and 64bit) and Windows 8 (32 and 64bit)
Windows Embedded 7 and Windows Embedded 8
Linux
WxWorks

KTD-N0903-A Page 10 System Specification
mITX-E38 Users Guide
Environmental
Conditions
Operating:
0°C – 60°C operating temperature.
It is the customer’s responsibility to provide
sufficient airflow around each of the components to keep them within allowed
temperature range.
10% - 90% relative humidity (non-condensing)
Storage:
-20°C – 70°
C; lower limit of storage temperature is defined by specification restriction
of on-
board CR2032 battery. Board with battery has been verified for storage
temperature down to -40°C by Kontron.
5% - 95% relative humidity (non-condensing)
Electro Static Discharge (ESD) / Radiated Emissions (EMI):
All Peripheral interfaces intended for connection to external equipment are ESD/ EMI
protected.
EN 61000-4-2:2000 ESD Immunity
EN55022:1998 class B Generic Emission Standard.
Safety:
IEC 60950-1: 2005, 2nd Edition
UL 60950-1
CSA C22.2 No. 60950-1
Product Category: Information Technology Equipment Including Electrical Business
Equipment
Product Category CCN: NWGQ2, NWGQ8
File number: E194252
Shock:
IAW IEC 60068-2-27, Test Ea, shock, 18 shocks 3 per axis, 6 directions.
Shock pulse 50g, 11ms halfsine.
Bump:
IAW IEC 60068-2-29, Test Eb, Bump, 3000 bumps, 500 per axis, 6 directions.
Half Sine Waveform Acceleration 2g; Pulse Duration 11ms.
Vibration:
IAW IEC 60068-2-64, Test Fh, Random Vibration. 90 min per axis, 3 axes, at 1.9 grms,
with PSD: 10-20 Hz: 0.05 g²/Hz and 20-500 Hz: -3dB/octave.
Theoretical MTBF:
235.723 / 174.224 hours @ 40°C / 60°C
Restriction of Hazardous Substances (RoHS):
All boards in the mITX E38 family are RoHS compliant.
Capacitor utilization:
No Tantalum capacitors on board
Only Japanese brand Solid capacitors rated for 100 °C used on board

KTD-N0903-A Page 11 System Specification
mITX-E38 Users Guide
System overview3.2
The block diagram below shows the architecture and main components of the mITX-E38. The key
component on the board is the Intel®Atom E38xx SOC (Bay Trail).
Intel
Atom
E3815/26/
45
System on
Chip
SODIMM DDR3L 1066/1333
1 slot 1-8GB.
PCIe x1(Gen 2)
DP (DisplayPort 1.1),
LVDS (2 pixel/clock, 24 bit):
2x DP (E3815 and E3826)
DP + LVDS (E3845)
Embedded
Controller
ITE8516
SPI BIOS Flash (64MBit)
SPI Header
Feature connector:
SMBus/I2C
GPIO/DAC/ADC/PWM
GPIO expansion (up to 152)
Fans: CPU and System
6-pin PS/2 Keyboard/Mouse
2x COM (RS232)
TPM (E3826 and E3845 only)
2x LAN GbE (Intel Pearsonville)
10/100/1000Mb
Audio Codec VIA VT1708S:
2x Audio Jack
SPDIF Out
Line-Out
Frontpanel: Line-out2 & Mic2
mSATA or mPCIe w. & USB2.0 & SIM
(mSATA is shared with SATA1)
2x SATA 2.0 (SATA0 and SATA1)
eMMC 16GB (E3845 only)
IO area
Int.
USB
3.0/
2.0
2.0
2.0
E3815
1x
2x
1x
E3826
1x
2x
1x
E3845
1x
2x
4x
4x COM (RS232)
(E3826 and E3845 only)
SD Card slot (E3826, E3845 only)
Embedded
Controller
ITE8517

KTD-N0903-A Page 12 System Specification
mITX-E38 Users Guide
Integrated Premounted Cooler3.3
Passive cooler on the mITX-E3815/E3826
Active cooler on the pITX- E3845

KTD-N0903-A Page 13 System Specification
mITX-E38 Users Guide
Power Consumption3.4
The following items were used in the test setup:
mITX-E38 Low Power Setup:
Standard system configuration equipped with Internal graphics, 1x SATA disks, Intel E3815CPU , 1x
SODIMM (2GB Module), DP Monitor, PS2 Keyboard & Mouse,1x 16GB USB 3.0 Stick, Passive heat-sink, +12V
PSU.
mITX-E38 High Power Setup:
Standard system configuration equipped with 1x PCI express LAN Card, mPCIE Wifi Card, 2x SATA disks,
Intel E3845 CPU, 1x SODIMM (4GB Modules), DP Monitor, PS2 Keyboard & Mouse, 1x 16GB USB 3.0 Stick, 2x
16GB USB 2.0 Sticks, 12V active cooler, +12V PSU.
The principal test system and test equipment used
1. Fluke 289
2. Fluke 179
3. ATX rail switch Configured as 12V only
Power measurrements:
Low Power Setup (E3815)
High Power Setup (E3845)
Windows 7 – Idle
424mA – 5.20W
836mA – 10.22W
Windows 7 – 3DMark2006
608mA – 7.46W
1214mA – 14.81W
Windows 7 – Intel TAT 100% all CPU cores and GFX
487mA – 5.98W
1138mA – 13.87W
Windows 7 – S3 (Sleep)
89mA – 1.13W
121mA – 1.54W
Windows 7 – S5 (Shutdown)
72mA – 0.92W
101mA – 1.29W
12V
mITX-E38
PSU
Gnd
Current
Probe
Note that power consumption of the
Display and HDD are not included.

KTD-N0903-A Page 14 Connector Locations
mITX-E38 Users Guide
USB4
USB5
FRONTPNL
LVDS
USB6
Speakers
PCIe x1
Fan Sys
Ext12V
Mic
COM2, COM1, COM3, COM4, COM6, COM5
Line-In
SPI
Int12V
USB1
USB2
Headphone
LPC
Clear CMOS
mPCIe
or
mSATA
& USB3
FEATURE
SATA1
Kbd/Mse
SATA0
SODIMM
DP1
LAN2
LAN1
DP2
USB0
PowerOut
Fan SOC
SPDIFout
Always On
SD Card
SIM socket
(on backside)
XDP (unsupported)
(on backside)
System temp1
(U79)
System temp2
(U86)
4Connector Locations
mITX-E38 – Frontside and Rear IO4.1

KTD-N0903-A Page 15 Connector Definitions
mITX-E38 Users Guide
5Connector Definitions
The following sections provide pin definitions and detailed description of all on-board connectors.
The connector definitions follow the following notation:
Column
name
Description
Pin Shows the pin-numbers in the connector. The graphical layout of the connector definition
tables is made similar to the physical connectors.
Signal The mnemonic name of the signal at the current pin. The notation “XX#” states that the signal
“XX” is active low.
Type AI: Analogue Input.
AO: Analogue Output.
I: Input, TTL compatible if nothing else stated.
IO: Input / Output. TTL compatible if nothing else stated.
IOT: Bi-directional tristate IO pin.
IS: Schmitt-trigger input, TTL compatible.
IOC: Input / open-collector Output, TTL compatible.
IOD: Input / Output, CMOS level Schmitt-triggered. (Open drain output)
NC: Pin not connected.
O: Output, TTL compatible.
OC: Output, open-collector or open-drain, TTL compatible.
OT: Output with tri-state capability, TTL compatible.
LVDS: Low Voltage Differential Signal.
PWR: Power supply or ground reference pins.
Ioh: Typical current in mA flowing out of an output pin through a grounded load, while the
output voltage is > 2.4 V DC (if nothing else stated).
Iol: Typical current in mA flowing into an output pin from a VCC connected load, while the
output voltage is < 0.4 V DC (if nothing else stated).
Pull U/D On-board pull-up or pull-down resistors on input pins or open-collector output pins.
Note Special remarks concerning the signal.
The abbreviation TBD is used for specifications which are not available yet or which are not sufficiently
specified by the component vendors.

KTD-N0903-A Page 16 Rear IO Connectors
mITX-E38 Users Guide
6Rear IO Connectors
DC Power Jack Connector (Ext12V – J35)6.1
Either the DC Power Jack Connector (Ext12V) or the “Int12V.” connector must be used to supply the board
with +12V +/-5%.
The Ext12V power connector has Vin to the center pin and mates with Ø 6.3 mm DC Power jack with Ø 2.0
mm pin hole. (DC Connector RA 2mm locking type). Maximum allowed current is 5A.
Warning: Hot Plugging power supply is not supported. Hot plugging might damage the board.

KTD-N0903-A Page 17 Rear IO Connectors
mITX-E38 Users Guide
DP Connectors (DP1 – J24, DP2 – J22)6.2
The DP (DisplayPort) connectors are based on standard DP type Foxconn 3VD51203-H7JJ-7H or similar.
19
17
15
13
11
9
7
5
3
1
20
18
16
14
12
10
8
6
4
2
Pin Signal Description Type Note
1
Lane 0 (p)
LVDS
2
GND
PWR
3
Lane 0 (n)
LVDS
4
Lane 1 (p)
LVDS
5
GND
PWR
6
Lane 1 (n)
LVDS
7
Lane 2 (p)
LVDS
8
GND
PWR
9
Lane 2 (n)
LVDS
10
Lane 3 (p)
LVDS
11
GND
PWR
12
Lane 3 (n)
LVDS
13 Config1 Aux or DDC
selection I
Internally pull down (1Mohm).
Aux channel on pin 15/17 selected as default (when NC)
DDC channel on pin 15/17, If HDMI adapter used (3.3V)
14
Config2
(Not used)
O
Internally connected to GND
15 Aux Ch (p)
Aux Channel (+)
or DDC Clk
AUX (+) channel used by DP
DDC Clk used by HDMI
16
GND
PWR
17 Aux Ch (n)
Aux Channel (-)
or DDC Data
AUX (-) channel used by DP
DDC Data used by HDMI
18
Hot Plug
I
Internally pull down (100Kohm).
19
Return
PWR
Same as GND
20
3.3V
PWR
Fused by 1.5A resetable PTC fuse.

KTD-N0903-A Page 18 Rear IO Connectors
mITX-E38 Users Guide
USB Connectors (IO Area)6.3
The mITX-E38 board contains support for one external USB3.0/2.0 port (USB0) and two external USB2.0
ports (USB1 and USB2).
(Three internal USB2.0 ports are available via internal pin connectors and one USB2.0 port is available via
mPCIe slot)
USB 2.0 ports allowing data transfers up to 480Mb/s. The USB 3.0 port allowing data transfers up to 5Gb/s.
Legacy Keyboard/Mouse and wakeup from sleep states are supported. Over-current detection on all USB
ports is supported. The following USB connectors are available in the IO Area.
For USB2.0 cabling it is required to use only HiSpeed USB cable, specified in USB2.0 standard:
For USB3.0 cabling it is required to use only HiSpeed USB cable, specified in USB3.0 standard:
Note that in order to meet the requirements of USB standard, the 5V input supply must be at least 5.00V.