AXIOMTEK SCM120 Instructions for use

SCM120 and SCB120
Freescale i.MX6 Series ARM-based
SMARC System-on-Module and
Baseboard
Hardware User’s Manual

ii
Disclaimers
This manual has been carefully checked and believed to contain accurate information.
Axiomtek Co., Ltd. assumes no responsibility for any infringements of patents or any third
party’s rights, and any liability arising from such use.
Axiomtek does not warrant or assume any legal liability or responsibility for the accuracy,
completeness or usefulness of any information in this document. Axiomtek does not make any
commitment to update the information in this manual.
Axiomtek reserves the right to change or revise this document and/or product at any time
without notice.
No part of this document may be reproduced, stored in a retrieval system, or transmitted, in
any form or by any means, electronic, mechanical, photocopying, recording, or otherwise,
without the prior written permission of Axiomtek Co., Ltd.
CAUTION
If you replace wrong batteries, it causes the danger of explosion. It is recommended by the
manufacturer that you follow the manufacturer’s instructions to only replace the same or
equivalent type of battery, and dispose of used ones.
Copyright 2016 Axiomtek Co., Ltd.
All Rights Reserved
June 2016, Version A4
Printed in Taiwan

iii
ESD Precautions
Computer boards have integrated circuits sensitive to static electricity. To prevent chipsets
from electrostatic discharge damage, please take care of the following jobs with precautions:
Do not remove boards or integrated circuits from their anti-static packaging until you are
ready to install them.
Before holding the board or integrated circuit, touch an unpainted portion of the system
unit chassis for a few seconds. It discharges static electricity from your body.
Wear a wrist-grounding strap, available from most electronic component stores, when
handling boards and components.
Trademarks Acknowledgments
Axiomtek is a trademark of Axiomtek Co., Ltd.
IBM, PC/AT, PS/2, VGA are trademarks of International Business Machines Corporation.
ARM is a trademark of ARM Ltd.
Other brand names and trademarks are the properties and registered brands of their
respective owners.

iv
Table of Contents
Disclaimers.....................................................................................................ii
ESD Precautions...........................................................................................iii
Chapter 1 Introduction............................................. 1
1.1 Features...............................................................................................2
1.2 Specifications......................................................................................3
Chapter 2 Board and Pin Assignments.................... 5
2.1 Board Dimensions and Fixing Holes.................................................5
2.2 Board Layout.......................................................................................6
2.3 Installing Heatsink & Heatspreader ...................................................7
2.3.1 Heatsink ...................................................................................................... 7
2.3.2 Heatspreader............................................................................................... 7
2.4 Switch Settings ...................................................................................8
2.4.1 SWICH (SW1)............................................................................................. 8
2.5 Connectors ..........................................................................................8
2.5.1 JTAG Connector (JP1)................................................................................ 8
Chapter 3 SCB120 Baseboard.................................. 9
3.1 SCB120 Specifications .......................................................................9
3.2 SCB120 Dimensions and Fixing Holes............................................10
3.3 SCB120 Board Layout.......................................................................11
3.4 Jump setting......................................................................................12
3.4.1 LVDS Voltage Selection (JP15)................................................................. 12
3.4.2 Boot Mode Selection (JP1~JP3)............................................................... 12
3.4.3 Touch Panel Wire Selection (JP7)............................................................. 12
3.5 Connectors ........................................................................................13
3.5.1 COM3 Connector (CN2)............................................................................ 14
3.5.2 COM2 Connector (CN3)............................................................................ 14
3.5.3 CAN Interface Connectors (CN4 and CN5) .............................................. 15
3.5.4 COM1 Box Header (CN6) ......................................................................... 15
3.5.5 MXM Connector (CN7).............................................................................. 16
3.5.6 Mini Card Socket (CN9) ............................................................................ 20
3.5.7 Expansion Connector (CN11).................................................................... 21
3.5.8 50-pin ZIF Connector (CN12).................................................................... 22
3.5.9 LVDS Connector (CN13)........................................................................... 23
3.5.10 Ethernet Port Internal LEDs Connector (CN15)........................................ 24

v
3.5.11 USB Port Host Connector (CN16)............................................................. 24
3.5.12 DC Jack Power Connector (CN17)........................................................... 24
3.5.13 Audio Headphone Jack (CN18) ................................................................ 25
3.5.14 HDMI Connector (CN19)........................................................................... 25
3.5.15 Inverter Connector (CN20)........................................................................ 25
3.5.16 Mini USB OTG Port Host/Device Connector (CN21)................................ 26
3.5.17 Audio MIC IN Jack (CN23)........................................................................ 26
3.5.18 Camera Parallel port (CN26)..................................................................... 26
3.5.19 Camera Serial port (CN27) ....................................................................... 26
3.5.20 SDHC/MMC Card Socket (SCN1)............................................................. 27
3.5.21 User Button for Keypad (SW1~SW9)........................................................ 28
3.5.22 Reset Button (SW10) ................................................................................ 28

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SCM120 and SCB120 Freescale i.MX6 ARM-based System-on-Module and Baseboard
Introduction 1
Chapter 1
Introduction
The SCM120 is a new SMARC module to support Freescale i.MX6 series SoCs. It integrates
system memory, storage as eMMC/SDHC socket, TTL LCD, audio, USB host/client, UARTs,
CANBus and various I/O features. Taking the low power consumption advantages of ARM
RISC architecture, the SCM120 is extremely suitable to be deployed in the deeply embedded
applications; such as HMI, data logger, extended temperature embedded controllers, etc.

SCM120 and SCB120 Freescale i.MX6 ARM-based System-on-Module and Baseboard
Introduction 2
1.1 Features
Freescale i.MX6 family SoC information:
Feature
i.MX6Quad(800MHz)
MCIMX6Q7CVT08A
i.MX6Quad(1.0GHz)
MCIMX6Q5EYM10A
i.MX6DualLite(800MHz)
MCIMX6U7CVM08A
On-chip
RAM
DDR3 1066MHz 1GB
DDR3 1066MHz 1GB
DDR3 800MHz 1GB
Memory I/F
eMMC NAND Flash
4GB
eMMC NAND Flash
4GB
eMMC NAND Flash
4GB
Touchscreen
No
No
No
Ethernet
x1
x1
x1
Display
LVDS x2
24-bit TTL LCD
HDMI x1
LVDS x2
24-bit TTL LCD
HDMI x1
LVDS x2
24-bit TTL LCD
HDMI x1
Storage
SATA x1
SD/SDHC x1
SATA x1
SD/SDHC x1
SD/SDHC x1
Mini PCIE
x1
x1
x1
USB 2.0
OTG HS with HS PHY x1
HS Host with HS PHY x1
OTG HS with HS PHY x1
HS Host with HS PHY x1
OTG HS with HS PHY x1
HS Host with HS PHY x1
Camera
sensors
Serial port x1
Parallel port x1
Serial port x1
Parallel port x1
Serial port x1
Parallel port x1
CAN
x2
x2
x2
JTAG
x1
x1
x1
SPI
x2
x2
x2
I2C
x4
x4
x4
UART
RS-232 x2
RS-232 x2
RS-232 x2
GPIO
x8
x8
x8
Audio
Headphone x1
Mic-in x1
Headphone x1
Mic-in x1
Headphone x1
Mic-in x1
System
Control
Buttons x2
(Power,Reset,)
Buttons x2
(Power,Reset,)
Buttons x2
(Power,Reset,)
Power
DC 5V, 5A
CR2032 for Standby
Power
DC 5V, 5A
CR2032 for Standby
Power
DC 5V, 5A
CR2032 for Standby
Power
Onboard DDR3-1066 memory 1GB ,supports up to 2GB capacity
Onboard eMMC flash as booting device
One USB 2.0 ports and One Mini USB OTG port
24-bit TTL LCD
2 100/10 Base-T Ethernet
IIS Audio

SCM120 and SCB120 Freescale i.MX6 ARM-based System-on-Module and Baseboard
Introduction 3
1.2 Specifications
CPU
Freescale i.MX6 series SoC; default is i.MX6 DualLite
ARM Cortex A9TM CPU running at 1.2GHz.
256KB integrated low power on-chip SRAM.
64KB integrated mask-programmable on-chip ROM.
Boot ROM
Linux kernel 3.0.35 compliant Android 4.3.1
(Please contact your agent for detail shipping content).
System Memory
1GB Maximum up to 2GB DDR3-1066 memory.
USB Interface
One USB 2.0 ports and One Mini USB OTG port OTG comply with USB Spec. Rev.
2.0.
Storage Interface
One eMMC NAND flash chip on module; default is 4GB.
One SATA Connector on base serial-ATA to interface with hard disk drives.
One SD/SDHC Connector on base with up to 32GB capacity.
One Micro SD Connector on base with up to 32GB capacity(option)
Display
Two LVDS channels, connectivity to displays with LVDS interface.
One parallel display ports, RGB Data of 18 or 24 bits.
One HDMI with up to 1920x1080 resolution.
Ethernet
One 10/100/1000 Base-T with Freescale i.MX6 integrated MAC and Atheros AR8031
PHY, support IEEE std 1588-compatible hardware timestamp.
One 10/100 Base-T with AX88772B.
Compatible with IEEE std 802.3.
Audio
Freescale IIS SGTL5000 codec for MIC-in/headphone via SMARC MXM interface.
Serial Port
Two RS-232, with 4-wire(TX/RX/RTS/CTS)
CANBus
Two 2.0B protocol-compatible Controller Area Network (CAN) via SMARC MXM
interface.
Camera sensors
MIPI CSI-2( 2 lanes)
Parallel Camera port(8 bit)
I2C
Foru I2C Master/Slave interfaces (up to 400kbps) connected to SMARC MXM
interface.

SCM120 and SCB120 Freescale i.MX6 ARM-based System-on-Module and Baseboard
Introduction 4
SPI
One SPI channel for 2 chip select via SMARC MXM interface.
GPIO
Eight GPIO interfaces (up to 400kbps) via SMARC MXM interface with buttons.
Power
+5V ± 5% DC-in.
Form Factor
82mm x 50mm.
Thickness as 1.2mm ± 0.1mm.
SMARC specifications v2.0 compliant.
Environments
Operating temperature with Imx6: -40 ~ 85ºC
Operating humidity: 10% RH ~ 85% RH relative humidity, non-condensing.
Note: All specifications and images are subject to change without notice.

SCM120 and SCB120 Freescale i.MX6 ARM-based System-on-Module and Baseboard
Board and Pin Assignments 5
Chapter 2
Board and Pin Assignments
2.1 Board Dimensions and Fixing Holes
Top View
Bottom View

SCM120 and SCB120 Freescale i.MX6 ARM-based System-on-Module and Baseboard
Board and Pin Assignments 6
2.2 Board Layout
Top View
Bottom View

SCM120 and SCB120 Freescale i.MX6 ARM-based System-on-Module and Baseboard
Board and Pin Assignments 7
2.3Installing Heatsink & Heatspreader
For thermal dissipation, the heatsink & heatspreader enable the SCM120 components to
dissipate heat efficiently. All heat generating components are thermally conducted to the
heatsink or heatspreader in order to avoid hot spots. Below procedures illustrate how to install
the heatsink and heatspreader on SCM120.
2.3.1 Heatsink
1. The heatsink is designed for the SCM120 module. Before installing the heatsink to
the CPU module, please ensure that the surface of the processor is clean and free
of dust and finger oil. This is especially critical for SCM120 module that is with high
CPU speed to ensure that the heatsink acts as a proper thermal interface for cooling
solutions.
2. Please tear the sticker protector, place the heatsink on top of the processor chip. It
makes even contact all around.
2.3.2 Heatspreader
1. The heatspreader is designed for the SCM120 module. The thermal pad on the
heatspreader is designed to make contact with the necessary components on the
SCM120 module. When mounting the heatspreader you must make sure that the
thermal pads on the heatspreader make complete contact (no space between
thermal pad and component) with the corresponding components on the SCM120
module. This is especially critical for SCM120 module that is with high CPU speed to
ensure that the heat spreader acts as a proper thermal interface for cooling
solutions.
2. This CPU module has four assembly holes for installing heat spreader plate. Use the
four screws to secure the heat spreader plate to the SCM120. Be careful not to
over-tighten the screws.

SCM120 and SCB120 Freescale i.MX6 ARM-based System-on-Module and Baseboard
Board and Pin Assignments 8
2.4 Switch Settings
2.4.1 SWICH (SW1)
SCM120 jumpers are for boot mode selection
SCB120 jumpers are for boot mode selection.
2.5 Connectors
2.5.1 JTAG Connector (JP1)
This board has a JTAG Connector (JP1) for interfacing JTAG ICE TOOL.
Function
Setting
Depend on base board
(Default)
SW1(1.3,4) ON
SW1(2) OFF
Function
Setting
Serial Downloader Mode
(For MFGTool)
JP1 Open
JP2 Open
JP3 Open
Boot from eMMC
(Default)
JP1 Close
JP2 Open
JP3 Open
Boot from SD Card
JP1 Open
JP2 Close
JP3 Close
Pin
Signal
Pin
Signal
1
GEN_3V3
2
JTAG_TMS
3
JTAG_nTRST
4
JTAG_TCK
5
JTAG_TDI
6
JTAG_TDO
7
GND
8
POR_B

SCM120 and SCB120 Freescale i.MX6 ARM-based System-on-Module and Baseboard
SCB120 Baseboard 9
Chapter 3
SCB120 Baseboard
The SCB120 is a baseboard for SCM120 SoM. Connect this baseboard properly of SCM120.
Its specifications and detailed information are given in this chapter.
3.1 SCB120 Specifications
Size
210mm x 150mm
Features
Support Audio jack (MIC-in/Headphone).
One SDHC Card socket.
One USB 2.0 Host and one OTG for Client.
Two RJ-45 interfaces, 1000-Mbps Ethernet MAC integrated in iMX6 and PHY as
Atheros AR8031, the other one for 10/100 Base-T with AX88772B.
Serial Ports: Four RS-232 4-wire 3.3V TTL
Two CAN Bus with 2.0B protocol compliant.
HDMI 1.4
SATA 2.0
2 x LVDS 24bit
1 x TTL 24bit
Extension connector with 1 x RS-232(4-wire),2 x I2C(up to 400 kbps),1 x SPI(2 chip
select)
User buttons for keypad and reset button.
Power
+5V ± 5% DC-in, over 1.7A.
Note: All specifications and images are subject to change without notice.

SCM120 and SCB120 Freescale i.MX6 ARM-based System-on-Module and Baseboard
SCB120 Baseboard 10
3.2 SCB120 Dimensions and Fixing Holes
Top View
Bottom View

SCM120 and SCB120 Freescale i.MX6 ARM-based System-on-Module and Baseboard
SCB120 Baseboard 11
3.3 SCB120 Board Layout
Top View
Bottom View

SCM120 and SCB120 Freescale i.MX6 ARM-based System-on-Module and Baseboard
SCB120 Baseboard 12
3.4 Jump setting
Jumper is a small component consisting of jumper clip and jumper pins. Install jumper clip on 2
jumper pins to close. And remove jumper clip from 2 jumper pins to open. The following
illustration shows how to set up jumper.
Below you can find a summary table of all jumpers and onboard default settings.
Jumper
Description
Jumper Setting
JP15
LVDS Voltage Selection
Default: +3.3V
1-2 close
3.4.1 LVDS Voltage Selection (JP15)
The board supports voltage selection for flat panel displays. JP15 is used to set LVDS
connector (CN20) pin 1~6 LCD_PWR to +3.3V or +5V or +12V voltage level.
3.4.2 Boot Mode Selection (JP1~JP3)
These jumpers are for boot mode selection.
3.4.3 Touch Panel Wire Selection (JP7)
Function
JP2 Setting
+3.3V level (Default)
1-2 close
+5V level
3-4 open
+12V level
5-6 open
Function
Setting
Copy image to eMMC
(Default)
Must wait 30 sec
JP1 Open
JP2 Open
JP3 Open
Boot to OS
(SCM120 eMMC)
JP1 Close
JP2 Open
JP3 Open
Boot to OS
(SCB120 SD Card)
JP1 Open
JP2 Close
JP3 Close
Function
JP2 Setting
4,8 Wire
1-2 close
5 Wire
2-3 close

SCM120 and SCB120 Freescale i.MX6 ARM-based System-on-Module and Baseboard
SCB120 Baseboard 13
3.5 Connectors
Signals go to other parts of the system through connectors. Loose or improper connection
might cause problems, please make sure all connectors are properly and firmly connected.
Here is a summary table which shows all connectors on the hardware.
Connector
Description
CN2
COM3 Connector
CN3
COM2 Connector
CN4
CAN1 Interface Connector
CN5
CAN2 Interface Connector
CN6
COM1 Box Header
CN8
MXM Connector
CN9
PCI-Express Mini Card Connector
CN11
Expansion Connector
CN12
50-pin ZIF for TTL LCD+T/S from baseboard
CN13
LVDS Connector
CN15
Ethernet Port 0 Connector
CN16
USB Port Host Connector
CN17
DC Jack Power Connector
CN18
Audio Headphone Jack
CN19
HDMI Connector
CN20
Inverter Connector
CN21
Mini USB OTG Port Host/Device Connector
CN23
Audio MIC-in Jack
CN26
Camera Parallel port
CN27
Camera Serial port
SCN1
SDHC/MMC Card Socket
SATA1
SATA & SATA Power Connector
SW1
User Button for Keypad
SW2
User Button for Keypad
SW3
User Button for Keypad
SW4
User Button for Keypad
SW5
User Button for Keypad
SW6
User Button for Keypad
SW7
User Button for Keypad
SW8
User Button for Keypad
SW9
User Button for Keypad
SW10
Reset Button

SCM120 and SCB120 Freescale i.MX6 ARM-based System-on-Module and Baseboard
SCB120 Baseboard 14
3.5.1 COM3 Connector (CN2)
These is standard 9-pin D-Sub connectors for interfacing to serial ports.
CN2 (for COM3)
3.5.2 COM2 Connector (CN3)
These is standard 9-pin D-Sub connectors for interfacing to serial ports.
CN3 (for COM2)
Pin
Signal
1
N.C.
2
COM3_RX
3
COM3_TX
4
N.C.
5
GND
6
N.C.
7
COM3_RTS
8
COM3_CTS
9
N.C.
Pin
Signal
1
N.C.
2
COM2_RX
3
COM2_TX
4
N.C.
5
GND
6
N.C.
7
COM2_RTS
8
COM2_CTS
9
N.C.