iWave iW-RainboW-G33M Installation manual

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i.MX8M SMARC SOM Hardware User Guide
iWave Systems Technologies Pvt. Ltd.
iW-RainboW-G33M
i.MX8M Quad/QuadLite/Dual
SMARC System On Module
Hardware User Guide
DRAFT VERSION SUBJECT TO CHANGE

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i.MX8M SMARC SOM Hardware User Guide
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Document Revision History
Document Number
iW-PRFSZ-UM-01-R1.0-REL0.2-Hardware
Revision
Date
Description
0.2
15th March 2019
Initial Draft Version
PROPRIETARY NOTICE: This document contains proprietary material for the sole use of the intended recipient(s). Do
not read this document if you are not the intended recipient. Any review, use, distribution or disclosure by others is
strictly prohibited. If you are not the intended recipient (or authorized to receive for the recipient), you are hereby
notified that any disclosure, copying distribution or use of any of the information contained within this document is
STRICTLY PROHIBITED. Thank you. “iWave Systems Tech. Pvt. Ltd.”

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i.MX8M SMARC SOM Hardware User Guide
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Disclaimer
iWave Systems reserves the right to change details in this publication including but not limited to any Product
specification without notice.
No warranty of accuracy is given concerning the contents of the information contained in this publication. To the
extent permitted by law no liability (including liability to any person by reason of negligence) will be accepted by iWave
Systems, its subsidiaries or employees for any direct or indirect loss or damage caused by omissions from or
inaccuracies in this document.
CPU and other major components used in this product may have several silicon errata associated with it. Under no
circumstances, iWave Systems shall be liable for the silicon errata and associated issues.
Trademarks
All registered trademarks, product names mentioned in this publication are the property of their respective owners
and used for identification purposes only.
Certification
iWave Systems Technologies Pvt. Ltd. is an ISO 9001:2015 Certified Company.
Warranty & RMA
Warranty support for Hardware: 1 Year from iWave or iWave's EMS partner.
For warranty terms, go through the below web link,
http://www.iwavesystems.com/support/warranty.html
For Return Merchandise Authorization (RMA), go through the below web link,
http://www.iwavesystems.com/support/rma.html
Technical Support
iWave Systems technical support team is committed to provide the best possible support for our customers so that
our Hardware and Software can be easily migrated and used.
For assistance, contact our Technical Support team at,
Email : [e-mail]
Website : www.iwavesystems.com
Address : iWave Systems Technologies Pvt. Ltd.
# 7/B, 29th Main, BTM Layout 2nd Stage,
Bangalore, Karnataka,
India –560076

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Table of Contents
1. INTRODUCTION ............................................................................................................................................7
1.1 Purpose .............................................................................................................................................................7
1.2 SMARC SOM Overview......................................................................................................................................7
1.3 List of Acronyms................................................................................................................................................7
1.4 Terminlogy Description.....................................................................................................................................9
1.5 References ........................................................................................................................................................9
1.6 Important Note ...............................................................................................................................................10
2. ARCHITECTURE AND DESIGN....................................................................................................................... 11
2.1 i.MX8M SMARC SOM Block Diagram..............................................................................................................11
2.2 i.MX8M SMARC SOM Features .......................................................................................................................12
2.3 i.MX8M CPU....................................................................................................................................................14
2.4 PF4210 PMIC...................................................................................................................................................15
2.5 Memory...........................................................................................................................................................15
2.5.1 LPDDR4 RAM...............................................................................................................................................15
2.5.2 eMMC Flash ................................................................................................................................................15
2.5.3 Micro SD Connector slot (Optional).............................................................................................................15
2.5.4 QSPI Flash (Optional) ..................................................................................................................................16
2.6 Network & Communiation..............................................................................................................................16
2.6.1 Wi-Fi and Bluetooth Interface.....................................................................................................................16
2.7 SMARC PCB Edge Connector...........................................................................................................................17
2.7.1 Gigabit Ethernet..........................................................................................................................................22
2.7.2 SD Interface.................................................................................................................................................24
2.7.3 USB Interface...............................................................................................................................................24
2.7.4 PCIe Interface ..............................................................................................................................................26
2.7.5 MIPI CSI Camera..........................................................................................................................................27
2.7.6 HDMI Interface............................................................................................................................................29
2.7.7 MIPI DSI Display Interface...........................................................................................................................29
2.7.8 Audio Interface............................................................................................................................................30
2.7.9 SPI Interface ................................................................................................................................................31
2.7.10 Data UART...................................................................................................................................................32
2.7.11 SMARC GPIOs ..............................................................................................................................................33
2.7.12 Power control & Management signals........................................................................................................34
2.8 Expansion Connector ......................................................................................................................................36
2.8.1 SAI Interface................................................................................................................................................38
2.8.2 MIPI CSI Camera Interface ..........................................................................................................................39
2.8.3 GPIOs...........................................................................................................................................................39
2.9 Other Features................................................................................................................................................40
2.9.1 Fan Header..................................................................................................................................................40
2.9.2 RTC Controller .............................................................................................................................................40
2.9.3 JTAG Header (Optional)...............................................................................................................................41
2.9.4 Debug UART Header (Optional) ..................................................................................................................42

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2.10 i.MX8M PinMultiplexing on SMARC Edge.......................................................................................................43
2.11 i.MX8M Pin Multiplexing on Expansion Connector ........................................................................................48
3. TECHNICAL SPECIFICATION.......................................................................................................................... 50
3.1 Electrical Characteristics .................................................................................................................................50
3.1.1 Power Input Sequencing..............................................................................................................................50
3.1.2 Power Consumption ....................................................................................................................................51
3.2 Environmental Characteristics........................................................................................................................52
3.2.1 Environmental Specification........................................................................................................................52
3.2.2 Heat Sink .....................................................................................................................................................52
3.2.3 RoHS Compliance ........................................................................................................................................53
3.2.4 Electrostatic Discharge................................................................................................................................53
3.3 Mechanical Characteristics .............................................................................................................................54
3.3.1 i.MX8M SMARC SOM Mechanical Dimensions ...........................................................................................54
4. ORDERING INFORMATION .......................................................................................................................... 55
5. APPENDIX................................................................................................................................................... 57
5.1 i.MX8M SMARC Development Platform .........................................................................................................57

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List of Figures
Figure 1: i.MX8M SMARC SOM Block Diagram...............................................................................................................11
Figure 2: i.MX8MBlock Diagram .....................................................................................................................................14
Figure 3: SMARC Edge Connector...................................................................................................................................17
Figure 4: Fan Header.......................................................................................................................................................40
Figure 5: Power Input Sequencing..................................................................................................................................50
Figure 6: Mechanical dimension Heat Sink.....................................................................................................................53
Figure 7: Mechanical dimension of i.MX8M SMARC SOM Top View..............................................................................54
Figure 8: Mechanical dimension of i.MX8M SMARC SOM- Side View............................................................................54
Figure 9: i.MX8M SMARC Development Platform ..........................................................................................................57
List of Tables
Table 1: Acronyms & Abbreviations..................................................................................................................................7
Table 2: Terminology ........................................................................................................................................................9
Table 3: SMARC Edge Connector Pinouts .......................................................................................................................18
Table 4: Expansion Connector Pinouts ...........................................................................................................................36
Table 5: FAN Header Pin Assignment..............................................................................................................................40
Table 6: JTAG Header Pin Assignment (Optional)...........................................................................................................41
Table 7: Debug UART Header Pin Out (Optional) ...........................................................................................................42
Table 8: i.MX8M CPU IOMUX for SMARC Edge Connector interfaces............................................................................43
Table 9: i.MX8M Pin Multiplexing on Expansion Connector interfaces..........................................................................48
Table 10: Power Input Requirement...............................................................................................................................50
Table 11: Power Sequence Timing..................................................................................................................................51
Table 12: Power Consumption........................................................................................................................................51
Table 13: Environmental Specification ...........................................................................................................................52
Table 14: Orderable Product Part Numbers ...................................................................................................................55

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1. INTRODUCTION
1.1 Purpose
This document is the Hardware User Guide for the SMARC SOM based on the NXP’s i.MX8M Dual/Quad/QuadLite
Application processor. This board is fully supported by iWave Systems Technologies Pvt. Ltd. This Guide provides
detailed information on the overall design and usage of the i.MX8M SMARC SOM from a Hardware Systems
perspective.
1.2 SMARC SOM Overview
The SMARC (“Smart Mobility ARChitecture”) is a versatile small form factor computer Module definition targeting
application that require low power, low costs, and high performance. The Module PCBs have 314 edge fingers that
mate with a low profile 314 pin 0.5mm pitch right angle connector. The Modules are used as building blocks for
portable and stationary embedded systems. The core CPU and support circuits, including DRAM, boot flash, power
sequencing, CPU power supplies, GBE and dual channel LVDS display transmitter are concentrated on the Module. The
Modules are used with application specific Carrier Boards that implement other features such as audio CODECs, touch
controllers, wireless devices, etc. The modular approach allows scalability, fast time to market and upgradability while
still maintaining low costs, low power and small physical size.
NXP’s i.MX8M SoC based SMARC System on Module is rich i.MX8M features along with LPDDR4, eMMC, Dual Ethernet
PHY and comes in compact 82mm x 50mm form factor. The Module PCB has 314 edge fingers that mate with a low
profile 314 pin 0.5mm pitch right angle connector.
1.3 List of Acronyms
The following acronyms will be used throughout this document.
Table 1: Acronyms & Abbreviations
Acronyms
Abbreviations
ARM
Advanced RISC Machine
BT
Bluetooth
CAN
Controller Area Network
CMOS
Complementary Metal-Oxide Semiconductor
CPU
Central Processing Unit
CTS
Clear to Send
CSI
Camera Serial Interface
DSI
Display Serial Interface
eMMC
Enhanced Multi Media Card
GB
Giga Byte
Gbps
Gigabits per sec

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Acronyms
Abbreviations
GPIO
General Purpose Input Output
I2C
Inter-Integrated Circuit
I2S
Inter-Integrated Sound
IC
Integrated Circuit
LPDDR4
Low Power Double Data Rate4
LVDS
Low-voltage differential signalling
MHz
Mega Hertz
MIPI
Mobile Industry Processor Interface
PCB
Printed Circuit Board
RoHS
Restriction of Hazardous Substances
RTC
Real Time Clock
RTS
Request to Send
SAI
Serial Audio Interface
SD
Secure Digital
SMARC
Smart Mobility ARChitecture
SOM
System On Module
TBD
To Be Defined
UART
Universal Asynchronous Receiver/Transmitter
USB
Universal Serial Bus
USB OTG
USB On The Go
Wi-Fi
Wireless Fidelity

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1.4 Terminlogy Description
In this document, wherever Signal Type is mentioned, below terminology is used.
Table 2: Terminology
Terminology
Description
I
Input Signal
O
Output Signal
IO
Bidirectional Input/output Signal
CMOS
Complementary Metal Oxide Semiconductor Signal
LVDS
Low Voltage Differential Signal
GBE
Gigabit Ethernet Media Dependent Interface differential pair signals
USB
Universal Serial Bus differential pair signals
MIPI
Mobile Industry Processor Interface signals
OD
Open Drain Signal
OC
Open Collector Signal
Power
Power Pin
PU
Pull Up
PD
Pull Down
NA
Not Applicable
NC
Not Connected
Note: Signal Type does not include internal pull-ups or pull-downs implemented by the chip vendors and only includes
the pull-ups or pull-downs implemented On-SMARC SOM.
1.5 References
•IMX8MDQLQIEC.pdf
•IMX8MDQLQRM.pdf
•SMARC Specification V2.0

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1.6 Important Note
In this document, wherever i.MX8M CPU signal name is mentioned, it is followed as per below format for easy
understanding.
•If CPU pin doesn’t have multiplexing option or used for dedicated functionality then the signal name is
mentioned as functionality name.
“Functionality Name”
Example: ENET1_RGMII_TXC
In this signal, ENET1_RGMII_TXC pad is used for same functionality.
•If CPU pin has multiplexing option and selected particular function other than default option, then the signal
name is mentioned as
“Selected Function Name (CPU Pad name)”
Example: UART2_CTS_B(UART4_RXD)
In this signal, UART2_CTS_B is the functionality which we are using and UART4_RXD is the CPU Pad name.
•If CPU pin selected as GPIO function, then the signal name is mentioned as
“GPIO_Functionality Description (GPIO Number)”
Example: GPIO_BCONFIG_0(GPIO1_05)
In this signal, BCONFIG_0 is the GPIO functionality which we are using and GPIO1_05 is the GPIO number.
Note: The above naming is not applicable for other signals which are not connected to CPU.