iWave i.MX 8M Mini Installation manual

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i.MX 8M Mini or i.MX 8M Nano Pico ITX SBC Hardware User Guide
iWave Systems Technologies Pvt. Ltd.
iW-RainboW-G34S/G37S
i.MX 8M Mini or i.MX 8M Nano
Pico ITX Single Board Computer
Hardware User Guide

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iWave Systems Technologies Pvt. Ltd.
Document Revision History
Document Number
iW-PRGII-UM-01-R1.0-REL0.1-Hardware
Revision
Date
Description
0.1
16th May 2021
Initial Draft Release
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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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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iWave Systems Technologies Pvt. Ltd.
Table of Contents
1. INTRODUCTION ............................................................................................................................................8
1.1 Purpose .............................................................................................................................................................8
1.2 Pico ITX SBC Overview.......................................................................................................................................8
1.3 List of Acronyms................................................................................................................................................8
1.4 Terminology Description.................................................................................................................................10
1.5 References ......................................................................................................................................................10
1.6 Important Note ...............................................................................................................................................11
2. ARCHITECTURE AND DESIGN....................................................................................................................... 12
2.1 i.MX 8M Mini or i.MX 8M Nano Pico ITX SBC Block Diagram .........................................................................12
2.2 i.MX 8M Mini or i.MX 8M Nano Pico ITX SBC Features ..................................................................................13
2.3 CPU..................................................................................................................................................................16
2.3.1 i.MX 8M Mini CPU.......................................................................................................................................16
2.3.2 i.MX 8M Nano SoC ......................................................................................................................................17
2.4 PMIC................................................................................................................................................................18
2.5 Memory...........................................................................................................................................................19
2.5.1 LPDDR4 RAM...............................................................................................................................................19
2.5.2 eMMC Flash ................................................................................................................................................19
2.5.3 Micro SD Connector.....................................................................................................................................19
2.6 Boot Media Setting .........................................................................................................................................20
2.7 Network & Communication ............................................................................................................................21
2.7.1 Wi-Fi and Bluetooth Interface.........................................................................................................................21
2.7.2 Gigabit Ethernet Interface...........................................................................................................................22
2.7.3 USB2.0 Host Interface .................................................................................................................................24
2.7.4 USB2.0 OTG Interface..................................................................................................................................25
2.7.5 GNSS Module...............................................................................................................................................25
2.7.6 CAN Interface ..............................................................................................................................................26
2.8 Serial Interface Features.................................................................................................................................27
2.8.1 Debug UART Interface.................................................................................................................................27
2.8.2 RS232 Data UART Interface ........................................................................................................................29
2.8.3 RS485 Data UART Interface (Optional) .......................................................................................................30
2.9 Audio/Video Features.....................................................................................................................................31
2.9.1 MIPI CSI Connector......................................................................................................................................31
2.9.2 I2S Audio Interface......................................................................................................................................33
2.9.3 HDMI & LVDS Display Interface...................................................................................................................35
2.9.4 USB Touch Connector..................................................................................................................................37
2.9.5 MIPI DSI Display (Optional).........................................................................................................................38
2.10 M.2 Key B Connector ......................................................................................................................................39
2.11 Expansion Connector ......................................................................................................................................41
2.12 Other Features................................................................................................................................................43
2.12.1 Fan Header..................................................................................................................................................43
2.12.2 RTC Controller with RTC Battery Header.....................................................................................................44

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2.12.3 JTAG Interface .............................................................................................................................................45
2.12.4 Power ON/OFF Switch.................................................................................................................................46
2.12.5 Reset Switch ................................................................................................................................................47
2.12.6 CPU ON/OFF Switch ....................................................................................................................................48
2.13 i.MX 8M Mini Pin Multiplexing on Expansion Connector ...............................................................................49
2.14 i.MX 8M Nano Pin Multiplexing on Expansion Connector..............................................................................51
3. TECHNICAL SPECIFICATION.......................................................................................................................... 53
3.1 Electrical Characteristics .................................................................................................................................53
3.1.1 Power Input Requirement ...........................................................................................................................53
3.2 Power Consumption........................................................................................................................................54
3.3 Environmental Characteristics........................................................................................................................56
3.3.1 Environmental Specification........................................................................................................................56
3.3.1 Heat Sink & Fan Sink ...................................................................................................................................56
3.3.2 RoHS Compliance ........................................................................................................................................57
3.3.3 Electrostatic Discharge................................................................................................................................57
3.4 Mechanical Characteristics .............................................................................................................................58
3.4.1 i.MX 8M Mini or i.MX 8M Nano Pico ITX SBC Mechanical Dimensions.......................................................58
4. ORDERING INFORMATION .......................................................................................................................... 59

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List of Figures
Figure 1: i.MX 8M Mini or i.MX 8M Nano Pico ITX SBC Block Diagram ..........................................................................12
Figure 2: i.MX 8M Mini Block Diagram ...........................................................................................................................16
Figure 3: i.MX 8M Nano Block Diagram..........................................................................................................................17
Figure 4: Micro SD Card Connector.................................................................................................................................19
Figure 5: Boot Media Switch...........................................................................................................................................20
Figure 6: Wi-Fi and Bluetooth Antenna Connector.........................................................................................................21
Figure 7: Dual RJ45 Magjack ...........................................................................................................................................23
Figure 8: Dual Stack USB2.0 Type A connector...............................................................................................................24
Figure 9: USB OTG Connector.........................................................................................................................................25
Figure 10: GNSS Antenna Connector ..............................................................................................................................26
Figure 11: CAN Connector...............................................................................................................................................27
Figure 12: Debug UART Header (Optional).....................................................................................................................28
Figure 13: Debug UART through Expansion Connector..................................................................................................29
Figure 14: RS232 Header.................................................................................................................................................30
Figure 15: RS485 Header.................................................................................................................................................31
Figure 16: 36 pin MIPI CSI Connector .............................................................................................................................32
Figure 17: Audio IN/OUT Jack .........................................................................................................................................34
Figure 18: Speaker Header..............................................................................................................................................34
Figure 19: HDMI Out Connector .....................................................................................................................................35
Figure 20: 40 pin LVDS Display Connector......................................................................................................................36
Figure 21: USB Touch Connector ....................................................................................................................................37
Figure 22: MIPI DSI Connector........................................................................................................................................38
Figure 23: M.2 Key B Connector .....................................................................................................................................40
Figure 24: Nano SIM Connector......................................................................................................................................40
Figure 25: Expansion Connector .....................................................................................................................................41
Figure 26: Fan Connector................................................................................................................................................43
Figure 27: RTC Battery Connector...................................................................................................................................44
Figure 28: JTAG Header...................................................................................................................................................45
Figure 29: Power ON/OFF Switch....................................................................................................................................47
Figure 30: Reset Switch...................................................................................................................................................47
Figure 31: CPU ON/OFF Switch .......................................................................................................................................48
Figure 32: Power Input Jack............................................................................................................................................53
List of Tables
Table 1: Acronyms & Abbreviations..................................................................................................................................8
Table 2: Terminology ......................................................................................................................................................10
Table 3: Boot Media Settings..........................................................................................................................................20
Table 4: CAN Header Pinout ...........................................................................................................................................27
Table 5: Debug UART Header Pinout..............................................................................................................................28
Table 6: Debug UART through Expansion Connector Pinout..........................................................................................29
Table 7: RS232 Data UART Header Pinout......................................................................................................................30
Table 8: RS485 Data UART Header Pinout......................................................................................................................31

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Table 9: MIPI CSi Connector Pinouts...............................................................................................................................32
Table 10: Speaker Header Pinout ...................................................................................................................................35
Table 11: 40 Pin 10.1” LVDS Display Pinout....................................................................................................................36
Table 12: LVDS Display Touch Pinouts............................................................................................................................38
Table 13: MIPI DSI Connector Pinouts ............................................................................................................................39
Table 14: Expansion Connector Pinouts .........................................................................................................................41
Table 15: Fan Connector Pin Assignment .......................................................................................................................44
Table 16: RTC Battery Header Pin Assignment ...............................................................................................................45
Table 17: JTAG Header Pin Assignment ..........................................................................................................................46
Table 18: i.MX 8M Mini CPU IOMUX for Expansion Connector interfaces.....................................................................49
Table 19: i.MX 8M Nano CPU IOMUX for Expansion Connector interfaces ...................................................................51
Table 20: Power Input Requirement...............................................................................................................................54
Table 21: i.MX 8M Mini Pico ITX SBC Power Consumption ............................................................................................54
Table 22: i.MX 8M Nano Pico ITX SBC Power Consumption...........................................................................................55
Table 23: Environmental Specification ...........................................................................................................................56
Table 24: Orderable Product Part Numbers ...................................................................................................................59

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1. INTRODUCTION
1.1 Purpose
This document is the Hardware User Guide for the Pico ITX Single Board Computer based on the NXP’s i.MX 8M Mini
or i.MX 8M Nano 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.MX 8M Mini or i.MX 8M Nano Pico ITX
SBC from a Hardware Systems perspective.
1.2 Pico ITX SBC Overview
The Pico ITX is a versatile small form factor SBC (Single Board Computer) definition targeting application that require
low power, low costs, and high performance. The SBCs 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, GNSS module and LVDS/HDMI display are concentrated on the Module.
NXP’s i.MX8M Mini or i.MX 8M Nano SoC based Pico ITX Single Board computer is rich with i.MX8M Mini or i.MX 8M
Nano features along with, eMMC, Dual Ethernet PHY, USB2.0 Hub, GNSS module, Wi-Fi & BT module and comes in
compact 100mm x 72mm form factor.
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
GPIO
General Purpose Input Output
GPU
Graphics Processing Unit
HDMI
High-Definition Multimedia Interface
I2C
Inter-Integrated Circuit
I2S
Inter-Integrated Sound

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Acronyms
Abbreviations
IC
Integrated Circuit
JTAG
Joint Test Action Group
LPDDR4
Low Power Double Data Rate4
LVDS
Low Voltage Differential Signal
MHz
Mega Hertz
MIPI
Mobile Industry Processor Interface
OTG
On-The-Go
PCB
Printed Circuit Sheet
PCIe
Peripheral Component Interconnect express
PMIC
Power management integrated circuits
RAM
Random Access Memory
RGMII
Reduced gigabit media-independent interface
RoHS
Restriction of Hazardous Substances
RTC
Real Time Clock
RTS
Request to Send
SAI
Serial Audio Interface
SD
Secure Digital
SoC
System on Chip
SBC
Single Board Computer
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 Terminology 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
GBE
Gigabit Ethernet Signal
LVDS
Low Voltage Differential Signal
MIPI
Mobile Industry Processor Interface Signal
OD
Open Drain Signal
OC
Open Collector Signal
PCIe
Peripheral Component Interconnect Express Signal
USB
Universal Serial Bus 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 SBC.
1.5 References
•i.MX 8M Mini SoC
oIMX8MMIEC_Revx.x.pdf
oIMX_8M_Mini_RM_Revx.x.pdf
•i.MX 8M Nano SoC
oIMX8MNIEC_Revx.x.pdf
oIMX_8M_Nano_RM_Revx.x.pdf

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1.6 Important Note
In this document, wherever i.MX 8M Mini or i.MX 8M Nano SoC 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: ENET_TXC
In this signal, ENET_TXC pad is used for same functionality.
•If CPU pin selected as GPIO function, then the signal name is mentioned as
“Functionality Description (GPIO Number)”
Example: BCONFIG_0(GPIO1_9)
In this signal, BCONFIG_0 is the GPIO functionality which we are using and GPIO1_9 is the GPIO number.
Note: The above naming is not applicable for other signals which are not connected to CPU.

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2. ARCHITECTURE AND DESIGN
This section provides detailed information about i.MX 8M Mini or i.MX 8M Nano Pico ITX SBC features and Hardware
architecture with high level block diagram.
2.1 i.MX 8M Mini or i.MX 8M Nano Pico ITX SBC Block Diagram
iWave Systems Technologies Pvt. Ltd.
[email protected]
i.MX 8M Mini or i.MX 8M Nano SoC
Ethernet PHY Gigabit
Ethernet-0
RGMII
LPDDR4 (32bit)
LPDDR4-1GB
(Upgradable) ENET
Micro SD
PCIe*
USB1
DDRC
MMC (8bit)
eMMC –8GB
(Upgradable) uSDHC3
UART2
PCIe x 1
I2C3
I2C1
RTC Controller
USB2*
uSDHC1
WiFi-BT
Module
(Optional) UART1
PMIC
JTAG
UART x 1
SD2 (4bit)
MIPI DSI[3:0]
MIPI CSI
MIPI CSI[3:0]
i.MX 8M Mini or i.MX 8M Nano Pico-ITX SBC Block Diagram
SAI5
SPI to CAN
Transceiver
CAN x 1
eCSPI2
eCSPI2
MIPI_DSI MIPI to
LVDS/HDMI
LT8912B
LVDS x 1
HDMI x 1
UART4 Debug UART x 1
Power Jack
Power to
Peripherals
5V to 28V
On-Board
Regulators
MIPI CSI
Connector
I2C1
Boot mode
switch Boot mode
Boot mode
PCIe to
Ethernet
(optional)
RJ45 Conn
Dual Ganged
Left Conn
Gigabit
Ethernet-1 Right Conn
LVDS Conn.
HDMI Conn.
uSDHC2
GNSS
Module
GNSS ANT Conn. UART3
SD1 (4bit)
UART x 1
Nano SIM Conn.
Wi-Fi & BT ANT
Conn.
M.2 Module
Connector
key B
USB2.0[3]
PCIe_M.2
PCIe_M.2*
I2C2 I2C2
SAI1
I2S/PCM
SAI2 I2S
RS232
Transceiver
RS485
Transceiver
(optional)
RS232 Header
Debug Header
I2C3
I2C1
I2C2
JTAG Header
(Optional)
SGTL5000
Audio codec
I2S Audio In/Out
Jack
Audio In & Out
Audio
amplifier Speaker Header
LINE IN &Out
40Pin
Expansion
Connector
I2C3
UART x 1
SPI x 1* USB2.0[2] Touch Header
I2C2
I2C1
SPI x 1
RS485 Header
CAN Header
SAI6
SAI x 1
Debug UART4 x 1
PWM x 1
GPIO’s
MIPI DSI[1:0]
MIPI DSI
Connector
(Optional)
I2C3
WDT
RTC Coin cell
Header
VRTC_3V
VRTC_3V
Note:
*Not supported in i.MX 8M Nano SoC
USB2.0 OTG x 1
USB2.0[3] Dual
USB2.0Conn.
Top Conn.
USB2.0[0]
USB 2.0 Conn
USB2.0[2]
USB2.0[1] Bottom Conn.
USB2.0
1:4 Hub
Figure 1: i.MX 8M Mini or i.MX 8M Nano Pico ITX SBC Block Diagram

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2.2 i.MX 8M Mini or i.MX 8M Nano Pico ITX SBC Features
i.MX 8M Mini or i.MX 8M Nano Pico ITX SBC supports the following features.
CPU
•i.MX 8M MiniQ/QL/D/DL/S/SLProcessor1:
oi.MX 8M Mini Quad : 4 x Cortex- A53,1 x Cortex-M4
oi.MX 8M Mini Quad Lite : 4 x Cortex- A53,1 x Cortex-M4(VPU not supported)
oi.MX 8M Mini Dual : 2 x Cortex- A53,1 x Cortex-M4
oi.MX 8M Mini Dual Lite : 2 x Cortex- A53,1 x Cortex-M4(VPU not supported)
oi.MX 8M Mini Solo : 1 x Cortex- A53, 1 x Cortex-M4
oi.MX 8M Mini Solo Lite : 1 x Cortex- A53,1 x Cortex-M4(VPU not supported)
•i.MX 8M NanoQ/QL/D/DL/S/SL Processor1:
oi.MX 8M Nano Quad : 4 x Cortex- A53,1 x Cortex-M7
oi.MX 8M Nano Quad Lite : 4 x Cortex- A53,1 x Cortex-M7 (GPU not supported)
oi.MX 8M Nano Dual : 2 x Cortex- A53,1 x Cortex-M7
oi.MX 8M Nano Dual Lite : 2 x Cortex- A53,1 x Cortex-M7 (GPU not supported)
oi.MX 8M Nano Solo : 1 x Cortex- A53, 1 x Cortex-M7
oi.MX 8M Nano Solo Lite : 1 x Cortex- A53,1 x Cortex-M7 (GPU not supported)
Power
•BD71847AMWV-E2 PMIC (for i.MX 8M Mini SBC)
•BD71850MWV-E2 PMIC (for i.MX 8M Nano SBC)
Memory
•i.MX 8M Mini SBC
oLPDDR4 - 1GB (Expandableupto4GB)2,3
•i.MX 8M Nano SBC
oLPDDR4 - 1GB (Expandable up to 4GB)2,3
•eMMC Flash - 8GB (Expandable)3
•Micro SD slot
Network & Communication
•WiFi 802.11a/b/g/n/ac + Bluetooth 5.0 Module
•Gigabit Ethernet PHY Transceiver
•USB 2.0 Hub through dual stack Type-A Connector4
•USB 2.0 OTG port through –micro AB Receptacle Connector4
•GNSS Module
•RS232 x 1

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•RS485 x 1 (Optional)
•CAN x 1
Audio/Video Features
•HDMI Output through HDMI (Type A) Connector
•10.1” LVDS Display
•I2S Audio Codec
•3.5mm Audio IN/OUT
•MIPI CSI x 1 Channel
•2 Lane MIPI DSI Display (Optional)
Expansion Connector Interfaces
•SPI x 1 Port
•I2C x 1 Port
•SAI x1 Port
•Debug UART x 1 Port
•PWM x 1 Port
Miscellaneous Interfaces
•Debug UART Connector (Optional)
•JTAG Header
•RTC Battery Connector
•M.2 Connector Key B
oPCIe × 1
oUSB 2.0 x 1
oI2S x 1
oI2C x 1
oNano SIM Connector
General Specification
•Power Supply : 12V,2A5
•Form Factor : 100mm X 72mm
1. There are six configurations of i.MX 8M Mini or i.MX 8M Nano SoC supported by NXP, hence in this document
i.MX 8M Mini or i.MX 8M Nano Q/QL/D/DL/S/SLis used to represent either of one based on SBC Part Number.

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2. The i.MX 8M Mini CPU can support up to 8GB RAM but considering the available LPDDR4 Chips, SBC can support
up to 4GB (32Gb )RAM.
3. Memory Size will differ based on iWave’s SBC Product Part Number.
4. Since USB2 is NC in i.MX 8M Nano SoC, USB2.0 lines are supported through a switch.
5. The i.MX 8M Mini or i.MX 8M Nano SBC can support input power 4.5V to 27V. By default it is designed to support
12V.

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2.3 CPU
iW-RainboW-G34S/G37S i.MX 8M Mini or i.MX 8M Nano Pico ITX SBC can support different i.MX 8M Mini or i.MX 8M
Nano SoCs from NXP.
2.3.1 i.MX 8M Mini CPU
The i.MX 8M Mini Family consists of six processors: i.MX 8M Mini Quad, Quad Lite, Dual, DualLite, Solo, SoloLite. The
Major difference between i.MX 8M Mini SoCs are:
•i.MX 8M Mini Quad : 4 x Cortex- A53, 1 x Cortex-M4
•i.MX 8M Mini Quad Lite : 4 x Cortex- A53, 1 x Cortex-M4(VPU not supported)
•i.MX 8M Mini Dual : 2 x Cortex- A53, 1 x Cortex-M4
•i.MX 8M Mini Dual Lite : 2 x Cortex- A53, 1 x Cortex-M4(VPU not supported)
•i.MX 8M Mini Solo : 1 x Cortex- A53, 1 x Cortex-M4
•i.MX 8M Mini SoloLite : 1 x Cortex- A53, 1 x Cortex-M4(VPU not supported)
The i.MX 8M Mini Family supports ARM Cortex-A53 Core @ 1.6 GHz, ARM Cortex-M4F Core @ 400 MHz, 1080p,
VPU, and dual failover-ready display controllers, 1× 1080pdisplay, including MIPI-DSI. Memory interfaces supporting
LPDDR4, DDR4, DDR3L, Quad SPI/Octal SPI (FlexSPI), eMMC 5.1, RAW NAND and SD, and a wide range of peripheral
I/Os such as PCIe 2.0 provide wide flexibility.
Figure 2: i.MX 8M Mini Block Diagram

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2.3.2 i.MX 8M Nano SoC
Thei.MX 8M Nano Family consists of six processors: i.MX 8MNano Quad, Quad Lite, Dual, Dual Lite, Solo, SoloLite.
The Major difference between i.MX8M Nano SoCs are:
•i.MX 8M Nano Quad : 4 x Cortex- A53, 1 x Cortex-M7
•i.MX 8M Nano Quad Lite : 4 x Cortex- A53, 1 x Cortex-M7 (VPU not supported)
•i.MX 8M Nano Dual : 2 x Cortex- A53, 1 x Cortex-M7
•i.MX 8M Nano Dual Lite : 2 x Cortex- A53, 1 x Cortex-M7 (VPU not supported)
•i.MX 8M Nano Solo : 1 x Cortex- A53, 1 x Cortex-M7
•i.MX 8M Nano SoloLite : 1 x Cortex- A53, 1 x Cortex-M7 (VPU not supported)
The i.MX 8M Nano Family supports ARM Cortex-A53 Core @ 1.4 GHz, ARM Cortex-M7 Core @ 600 MHz, 1080p, and
dual failover-ready display controllers, 1× 1080pdisplay, including MIPI-DSI. Memory interfaces supporting LPDDR4,
DDR4, DDR3L, Quad SPI/Octal SPI (FlexSPI), eMMC 5.1, RAW NAND and SD, and a wide range of peripheral I/Os.
Figure 3: i.MX 8M Nano Block Diagram
Note: The i.MX 8M Mini or i.MX 8M Nano processor offers numerous advanced features, please refer the latest i.MX
8M Mini or i.MX 8M Nano Datasheet & Reference Manual for Electrical characteristics and other information, which
may be revised from time to time.

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2.4 PMIC
i.MX 8M Mini or i.MX 8M Nano Pico ITX SBC Rohm’s BD71847AMWV or BD71850MWV-E2 on-board PMIC for Power
management of i.MX 8M Mini ori.MX 8M Nano SBCs respectively. The BD71847AMWV/BD71850MWV-E2 is a Power
Management Integrated Circuit (PMIC) designed specifically for powering single-core, dual-core, and quad-core
SoC’s such as NXP-i.MX 8MMini.
The BD71847AMWV/BD71850MWV-E2 is a power management integrated circuit (PMIC) features six high efficiency
buck converters and six linear regulators (LDOs) for powering the processor, memory and miscellaneous peripherals.
Built-in one-time programmable memory stores key start up configurations, drastically reducing external
components typically used to set output voltage and sequence of external regulators. Regulator parameters are
adjustable through high-speed1MHz I2C after start up offering flexibility for different system states. The
BD71847AMWV/BD71850MWV-E2 (U12) comes in 56pin QFN Package and placed on top side of SBC.

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i.MX 8M Mini or i.MX 8M Nano Pico ITX SBC Hardware User Guide
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2.5 Memory
2.5.1 LPDDR4 RAM
The i.MX 8M Mini or i.MX 8M Nano Pico ITX SBC supports 1GB RAM using32bit LPDDR4 IC for Mini and 1GB RAM
using 16bit LPDDR4 IC for Nano connected to DDR controller of CPU to support LPDDR4 clock up to 1.5 GHz.
TheLPDDR4 IC (U14) placed on Top side of the SBC. The RAM size can be expandable up to maximum of 4GB. To
customize the LPDDR4 memory size, contact iWave.
2.5.2 eMMC Flash
The i.MX 8M Mini or i.MX 8M Nano Pico ITX SBC supports 8GB eMMC as default boot device and storage device. This
is connected to eMMC0 version 5.1vcontroller of the i.MX 8M Mini or i.MX 8M Nano SoC and operates at 1.8V (I/O
supply) and 3.3V(NAND core supply) Voltage levels.
The eMMC flash (U8) memory is physically located on top side of the SBC. The memory size of the eMMC Flash can
be customised based on the requirement by contacting iWave Support Team.
2.5.3 Micro SD Connector
Thei.MX 8M Mini or i.MX 8M Nano Pico ITX SBC supports Micro SD slot which can be used to connect Micro SD card
as optional boot device as well as Mass storage device. Micro SD card connector (J20) is directly connected to the
USDHC2 controller of the i.MX 8M Mini or i.MX 8M Nano SoC. The main power to Micro SD Card Connector is 3.3
Voltage. The micro SD Connector is physically located on bottom side of the i.MX 8M Mini or i.MX 8M Nano Pico ITX
SBC as shown below.
Figure 4: Micro SD Card Connector

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i.MX 8M Mini or i.MX 8M Nano Pico ITX SBC Hardware User Guide
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2.6 Boot Media Setting
i.MX 8M Mini or i.MX 8M Nano SoC boot process begins at Power On Reset (POR) where the hardware reset logic
forces the ARM core to begin execution starting from the on-chip boot ROM. i.MX 8M Mini SoC Boot ROM code uses
the state of the internal register BOOT_MODE [1:0] as well as the state of various eFUSEs and/or GPIO settings to
determine the boot flow behaviour of the device.
Note: Contact iWave if different boot media support is required other than eMMC flash.
Figure 5: Boot Media Switch
Table 3: Boot Media Settings
Boot Media
SW1 (2 Position Switch)
POS1
POS2
Boot from Fuse
OFF
OFF
USB Serial Download
OFF
ON
eMMC
ON
OFF
uSD
ON
ON