Embedian SMARC-iMX8M Series User manual

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SMARC-iMX8M Computer on Module User’s Manual v.1.0
SMARCComputeronModule
NXP/Freescalei.MX8MCortexA53andCortexM4
24bitsdual‐channelLVDS
HDMI2.0a/DP
4xCOMPorts
1xSDHC
1xUSBHost2.0,1xUSB2.0OTG,2xUSB3.0
1x10/100/1000MGigabitEthernet
2xCANBus,2xSPIs,5xI2Cs,12‐bitGPIOs
2xPCIex1Gen.2.1,2xMIPI_CSI
SMARC‐iMX8M
Dual,QuadandQuadLiteCores
(SMARC2.0SpecificationCompliant)

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SMARC-iMX8M Computer on Module User’s Manual v.1.0

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SMARC-iMX8M Computer on Module User’s Manual v.1.0
RevisionHistory
Revision Date ChangesfromPreviousRevision
1.0 2018/08/28 InitialRelease

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SMARC-iMX8M Computer on Module User’s Manual v.1.0
USERINFORMATION
AboutThisManual
ThisdocumentprovidesinformationaboutproductsfromEMBEDIAN,INC.
Nowarrantyofsuitability,purpose,orfitnessisimplied.While every
attempthasbeenmadetoensurethattheinformationinthisdocument
is accurate, the information contained within is supplied “as‐is” and is
subjecttochangewithoutnotice.
Forthecircuits,descriptionsandtablesindicated,EMBEDIANassumesno
responsibilityasfaraspatentsorotherrightsofthirdparties are
concerned.
CopyrightNotice
Copyright©2018EMBEDIAN,INC..
All rights reserved. No part of this manual may be reproduced,
transmitted, transcribed, stored in a retrieval system, or translated into
anylanguageorcomputerlanguage,inanyformorbyanymeans
(electronic, mechanical, photocopying, recording, or otherwise), without
theexpresswrittenpermissionofEMBEDIAN.
Trademarks
Thefollowingliststhetrademarksofcomponentsusedinthisboard.
ARMisaregisteredtrademarkofARMLimited.
AndroidisaregisteredtrademarkofGoogle
LinuxisaregisteredtrademarkofLinusTorvalds.
WinCEisaregisteredtrademarkofMicrosoft
NXPisaregisteredtrademarkofNXP
Allotherproductsandtrademarksmentionedinthismanualare
trademarksoftheirrespectiveowners.
Standards
EMBEDIAN is ISO 9001:2008 and ISO14001‐certified manufacturer.
SMARCisanSGETstandardforARMcomputeronmodule.
Warranty
T
hisEMBEDIANproductiswarrantedagainstdefectsinmaterialand
workmanshipforthewarrantyperiodfromthedateofshipment.During
thewarrantyperiod,EMBEDIANwillatitsdiscretion,decidetorepairor
replacedefectiveproducts.

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SMARC-iMX8M Computer on Module User’s Manual v.1.0
Withinthewarrantyperiod,therepairofproductsisfreeofcharge as
longaswarrantyconditionsareobserved.
The warranty does not apply to defects resulting from improper or
inadequate maintenance or handling by the buyer, unauthorized
modificationormisuse,operationoutsideoftheproduct’senvironmental
specificationsorimproperinstallationormaintenance.
EMBEDIANwillnotberesponsibleforanydefectsordamagestoother
products not supplied by EMBEDIAN that are caused by a faulty
EMBEDIANproduct.
TechnicalSupport
Technicians and engineers from EMBEDIAN and/or its subsidiaries and
officialdistributorsareavailablefortechnicalsupport.Wearecommitted
tomakingourproducteasytouseandwillhelpyouuseourproductsin
yoursystems.
Before contacting EMBEDIAN technical support, please consult our Web
site for the latest product documentation, utilities, and drivers. If the
information does not help solve the problem, contact us bye‐mail or
telephone.

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SMARC-iMX8M Computer on Module User’s Manual v.1.0
TableofContents
CHAPTER1INTRODUCTION....................................................................................................................10
1.1FEATURESANDFUNCTIONALITY....................................................................................................... 11
1.2MODULEVARIANT ............................................................................................................................13
1.3BLOCKDIAGRAM...............................................................................................................................14
1.4SOFTWARESUPPORT/HARDWAREABSTRACTION ..........................................................................15
1.5DOCUMENTANDSTANDARDREFERENCES.......................................................................................15
CHAPTER2SPECIFICATIONS....................................................................................................................20
2.1SMARC‐IMX8MGENERALFUNCTIONS .............................................................................................20
2.2SMARC‐IMX8MDEBUG.....................................................................................................................97
2.3MECHANICALSPECIFICATIONS..........................................................................................................97
2.4ELECTRICALSPECIFICATIONS........................................................................................................... 113
2.5ENVIRONMENTALSPECIFICATIONS.................................................................................................116
CHAPTER3CONNECTORPINOUT ......................................................................................................... 118
3.1SMARC‐IMX8MCONNECTORPINMAPPING...................................................................................118
CHAPTER 4 POWER CONTROL SIGNALS BETWEEN SMARC-IMX8M MODULE AND CARRIER
..............................................................................................................................................................151
4.1 SMARC-IMX8M MODULE POWER .............................................................................................151
4.2 POWER SIGNALS..........................................................................................................................156
4.3 POWER FLOW AND CONTROL SIGNALS BLOCK DIAGRAM..................................................161
4.4 POWER STATES.............................................................................................................................163
4.5 POWER SEQUENCES...................................................................................................................165
4.6 TERMINATIONS ............................................................................................................................169
4.7 BOOT DEVICE SELECTION.........................................................................................................174

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SMARC-iMX8M Computer on Module User’s Manual v.1.0
UsingthisManual
ThisguideprovidesinformationabouttheEmbedianSMARC‐iMX8MforNXP
i.MX8MembeddedSMARCcoremodulefamily.
Conventionsusedinthisguide 
Thistabledescribesthetypographicconventionsusedinthisguide:
ThisConvention Isusedfor
Italictype Emphasis,newterms,variables,and
documenttitles.
monospacedtypeFilenames,pathnames,andcode
examples.
EmbedianInformation
DocumentUpdates
PleasealwayschecktheproductspecificsectionontheEmbediansupport
websiteatwww.embedian.com/forthemostcurrentrevisionofthis
document.
ContactInformation
FormoreinformationaboutyourEmbedianproducts,orforcustomer
serviceandtechnicalsupport,contactEmbediandirectly. 
TocontactEmbedianby Use
Mail Embedian,Inc.
9F‐4.432KeelungRd.Sec.1,
Taipei11051,Taiwan
WorldWideWeb http://www.embedian.com/
Telephone +886227223291

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SMARC-iMX8M Computer on Module User’s Manual v.1.0
AdditionalResources
PleasealsorefertothemostrecentNXPi.MX8Mprocessorreferencemanual
andrelateddocumentationforadditionalinformation.

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SMARC-iMX8M Computer on Module User’s Manual v.1.0
Introduction
ThisChaptergivesbackgroundinformationonthe
SMARC‐iMX8M
Sectioninclude：
FeaturesandFunctionality
ModuleVariant
Blockdiagram
SoftwareSupport/HardwareAbstraction
ModuleVariant
DocumentandStandardReferences

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SMARC-iMX8M Computer on Module User’s Manual v.1.0
Chapter1Introduction
The SMARC‐iMX8M offers high‐performance processing for a low‐power
System‐on‐Module. It perfectly fits various embedded products, the growing
market of connected and portable devices and segment for connected
streamingaudio/videodevices,scanning/imagingdevicesandvariousdevices
requiringhigh‐performancebutlow‐powerprocessors.
The product is based on the NXP i.MX 8M Dual/Quad Lite/Quad family of
multi‐purposeprocessors,featuringanARM®Cortex™‐A53upto1.5GHzwith
anadditional266MHzARMCortex‐M4core.
This heterogeneous multicore processing architecture enables the device to
runanopenoperatingsystemlikeLinuxontheCortex‐A53coreandanRTOS
likeFreeRTOS™ontheCortex‐M4corefortimeandsecuritycriticaltasks.
Themoduleconnectorhas314edgefingersthatmatewithalowprofile314
pin0.5mmpitchrightangleconnector(thisconnectorissometimesidentified
asan321pinconnector,but7pinsarelosttothekey). 
Featuring NXP’s i.MX8M System‐on‐Chip, Embedian’s SMARC‐iMX8Moffers
single‐ or dual‐channel 18‐bit/24‐bit LVDS LCD, Gigabit Ethernet, HDMI/DP,
SDHC,USB2.0,USBUSB3.0,UARTs,CANbus,PCIeandmanyperipheral
interfaces in a cost effective, low power, miniature package. Embedian’s
SMARC‐iMX8M thin and robust design makes it an ideal building block for
reliable system design with a wide range of products in target markets
requiringhigh‐performanceprocessingwithlowpowerconsumption,compact
sizeandacost‐effectivesolution. 
Themoduleistheidealchoiceforabroadrangeoftargetmarketsincluding
BuildingControl‐FireandSecuritypanel,ElevatorControl,HVAC
control
IndustrialVehicle‐Avionicscockpitdisplay,in‐flightinfotainment,train
andheavyequipmentHMI
Healthcare–patientmonitor
PersonalUAVs
SmartCities
Voicecontrolandvoiceassistants
GeneralControlSystem
Andmore
Completeand cost‐efficientEmbedianevaluation kits for Yocto build, Debian

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SMARC-iMX8M Computer on Module User’s Manual v.1.0
9 , Ubuntu 16.04 and Android Oreo 8.1 allow immediate and professional
embedded product development with dramatically reduced design risk and
time‐to‐market.
1.1FeaturesandFunctionality
TheSMARC‐iMX8Mmoduleisbasedonthei.MX8Mprocessorwithdual,quad
lite,andquadcorefromNXP.Thisprocessoroffersahighnumberofinterfaces.
Themodulehasthefollowingfeatures: 
SMARC2.0compliantinan82mmx50mmformfactor.
Processor: NXPi.MX8MARMCortex‐A53andCortex‐M4upto1.5GHz
Memory:Onboard8GBeMMCFlash
Onboard2GBor4GBLPDDR4
Networking:1x10/100/1000MbpsEthernet
Display:
SinglechannelLVDSLCD24‐bitordualchannelLVDS
HDMI2.0a/DP
Expansion: 1xSDHC/SDIO,2xUSB2.0(oneOTG),2xUSB3.0,2xPCIe
x1Gen2.1
USB: 1xUSB2.0Host,1xUSB2.0OTG,2xUSB3.0
A single 4KB EEPROM is provided on I2C1 that holds the board
information.Thisinformationincludesboardname,serialnumber,and
revisioninformation.
AdditionalInterface:
4xUARTs
2xSPI(oneeSPI)
5xI2C
2xI2S
2xCANBus
2xPWM
2xMIPICSI(CameraInterface)
12xGPIOs
WDT
SWSupport:Linux,YoctoBuild,Ubuntu16.04,Debian9,AndroidOreo
8.1
PowerConsumption(Typcal)

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~4W
Thermal:
CommercialTemperature:0oC~80oC
IndustrialTemperature:‐40o~85oC
PowerSupply
3Vto5.25V
1.8VmoduleIOsupport(SMARC2.0compliant)

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1.2ModuleVariant
The SMARC‐iMX8M module is available with various options based on
processorsinthisfamilyfromNXP,LPDDR4memoryconfiguration, and
operatingtemperatureranges.
1. “D”(dualcore,CPUrunningupto2x1.5GHz)
“L”(quadlitecore,CPUrunningupto4x1.5GHz)
“Q”(quadcore,CPUrunningupto4x1.5GHz)
2. “2G”(2GBLPDDR4memory)
“4G”(4GBLPDDR4memory)
3. “I”-Industrialtemperature(‐40oC~85oCfor2GBLPDDR4and‐30oC~85oC
for4GBLPDDR4),CPUrunningupto1.3GHz,support2GBLPDDR4only)
LeaveitBlankifcommercialtemperature
For example, SMARC‐iMX8M‐D‐2G stands for dual core i.MX8M processor
running up to 1.5GHz with 2GB LPDDR4 memory in normal operating
temperature. 
4.“C”-Conformal coating. Leave it blank if no needs of conformal coating.

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1.3BlockDiagram
The following diagram illustrates the system organization of the
SMARC‐iMX8M.Arrowsindicatedirectionofcontrolandnotnecessarilysignal
flow. 
Figure1:SMARC‐iMX8MBlockDiagram
Detailsforthisdiagramwillbeexplainedinthefollowingchapters.

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1.4SoftwareSupport/HardwareAbstraction
TheEmbedianSMARC‐iMX8MModuleissupportedbyEmbedianBSPs(Board
SupportPackage).ThefirstSMARC‐iMX8MBSPtargetsLinux(Ubuntu16.04
LTS,Debian9,YoctoBuild)andAndroidOreo8.1support.BSPsforother
operatingsystemsareplanned.CheckwithyourEmbediancontactforthe
latestBSPs. 
ThismanualgoesintoalotofdetailonI/Oparticulars–informationis
providedonexactlyhowthevariousSMARCedgefingerstieintotheNXP
i.MX8MSoCandtootherModulehardware.Thisisprovidedforreferenceand
context.AlmostalloftheI/OparticularsarecoveredandabstractedintheBSP
anditshouldgenerallynotbenecessaryforuserstodealwithI/Oatthe
registerlevel. 
1.5DocumentandStandardReferences
1.5.1.ExternalIndustryStandardDocuments
eMMC(EmbeddedMulti‐MediaCard)theeMMCelectricalstandardis
defined by JEDEC JESD84‐B45 and the mechanical standard by
JESD84‐C44(www.jedec.org).
TheI2CSpecification,Version2.1,January2000,PhilipsSemiconductor
(nowNXP)(www.nxp.com).
I2S Bus Specification, Feb. 1986 and Revised June 5, 1996, Philips
Semiconductor(nowNXP)(www.nxp.com).
JTAG (Joint Test Action Group defined by IEEE 1149.1‐2001 ‐ IEEE
Standard Test Access Port and Boundary Scan Architecture
(www.ieee.org).
MXM3 Graphics Module Mobile PCI Express Module
Electromechanical Specification, Version 3.0, Revision 1.1, © 2009
NVIDIACorporation(www.mxm‐sig.org).
PICMG®EEEPEmbeddedEEPROMSpecification,Rev.1.0,August2010
(www.picmg.org).
SDSpecificationsPart1PhysicalLayerSimplifiedSpecification,Version
3.01,May18,2010,©2010SDGroupandSDCardAssociation(Secure
Digital)(www.sdcard.org).

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SPI Bus – “Serial Peripheral Interface” ‐ de‐facto serial interface
standard defined by Motorola. A good description may be found on
Wikipedia
(http://en.wikipedia.org/wiki/Serial_Peripheral_Interface_Bus).
USBSpecifications(www.usb.org).
Serial ATA Revision 3.1, July 18, 2011, Gold Revision, © Serial ATA
InternationalOrganization(www.sata‐io.org)
PCIExpressSpecifications(www.pci‐sig.org)
SPDIF(akaS/PDIF)(“SonyPhilipsDigitalInterface)‐IEC60958‐3
eSPI(“EnhancedSerialPeripheralInterface”)TheeSPIInterfaceBase
SpecificationisdefinedbyIntel
https://downloadcenter.intel.com/de/download/22112)
GBEMDI(“GigabitEthernetMediumDependentInterface”)definedby
IEEE802.3.The1000Base‐Toperationovercoppertwistedpaircabling
definedbyIEEE802.3ab(www.ieee.org).
HDMISpecification,Version1.3a,November10,2006©Hitachiand
othercompanies(www.hdmi.org).
RS‐232(EIA“RecommendedStandard232”)thisstandardfor
asynchronousserialportdataexchangedatesfrom1962.Theoriginal
standardishardtofind.Manygooddescriptionsofthestandardcanbe
foundon‐line,e.g.atWikipedia,andintextbooks.
CSI‐2(CameraSerialInterfaceversion2)TheCSI‐2standardisowned
andmaintainedbytheMIPIAlliance(“MobileIndustryProcessor
InterfaceAlliance”)(www.mipi.org).
CSI‐3(CameraSerialInterfaceversion3)TheCSI‐3standardisowned
andmaintainedbytheMIPIAlliance(
“ MobileIndustryProcessor
Alliance
” )(www.mipi.org)
CAN(“ControllerAreaNetwork”)BusStandard–ISO11898
DisplayPortandEmbeddedDisplayPortThesestandardsareowned
andmaintainedbyVESA(“VideoElectronicsStandardsAssociation”)
(www.vesa.org)
1.5.2.SGETDocuments
SMARC_Hardware_Specification_V200,version2.0,June2nd,2016.
SMARC_Hardware_Specification_V1p1,version1.1,May29,2014.

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1.5.3.EmbedianDocuments
Thefollowingdocumentsarelistedforreference.TheModuleschematicis
notusuallyavailableoutsideofEmbedian,withoutspecialpermission.The
other schematics will be available. Contact your Embedian representative
for more information. The SMARCEvaluationCarrierBoardSchematicis
particularly useful as an example of the implementation of various
interfacesonaCarrierboard.
SMARCEvaluationCarrierBoardSchematic,PDFandOrCADformat
SMARCEvaluationCarrierBoardUser’sManual
SMARC‐iMX8MUser’sManual
PinMuxfileforSMARC‐iMX8M
SMARC‐iMX8MSchematicChecklist
1.5.4. NXP Documents
IMX8MDQLQRM, i.MX8M Quad Applications Processor Reference
Manual,Jan8th,2018(rev.0)

IMX8MDQLQCEC,i.MX8MDual/8MQuadLite/8MQuad
Applications Processors Data Sheet for Industrial Products, May 23,
2018(rev.0.1)
IMX8MDQLQCEC,i.MX8MDual/8MQuadLite/8MQuad
Applications Processors Data Sheet for Consumer Products, May 23,
2018(rev.0.1)
IMX8MDQLQHDG,i.MX8MHardwareDeveloper’sGuide,Jan08.2018
(rev.0)
AN12118,i.MX8MQuadPowerConsumptionMeasurement,May23,
2018(rev.1)

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1.5.5.NXPDevelopmentTools
IOMUX_TOOLv4.1forARM®i.MX8MMicroprocessors
1.5.6.NXPSoftwareDocuments
Linux4.9.88_2.0.0
AndroidO8.1.0_1.3.08MQGADocumentation
1.5.7.EmbedianSoftwareDocuments
EmbedianLinuxBSPforSMARC‐iMX8MModule
EmbedianAndroidBSPforSMARC‐iMX8MModule
EmbedianLinuxBSPUser’sGuide
EmbedianAndroidBSPUser’sGuide
1.5.8.NXPDesignNetwork
SABRE
Wandboard
Nucleus
QNX

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Specifications
ThisChapterprovidesSMARC‐iMX8Mspecifications.
Sectioninclude：
SMARC‐iMX8MGeneralFunctions
SMARC‐iMX8MDebug
MechanicalSpecifications
ElectricalSpecification
EnvironmentSpecification

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Chapter2Specifications
2.1SMARC‐iMX8MGeneralFunctions
2.1.1.SMARC‐iMX8MFeatureSet
ThissectionliststhecompletefeaturesetsupportedbytheSMARC‐iMX8M
module.
SMARCFeature
Specification
SMARC2.0
Specification
MaximumNumber
Possible
SMARC‐iMX8M
FeatureSupport
SMARC‐iMX8M
FeatureSupport
Instances
LVDSLCDDisplaySupport 1 Yes 1(dualchannel)Note1
DP/eDP 1 Yes 1Note2
HDMIDisplaySupport 1 Yes 1
SerialCameraSupport 2 Yes 2(2‐lanesand
4‐lanes)
USBInterface 6 Yes 4(1xUSB2.0OTG,1
xUSB2.0and2x
USB3.0)
PCIeInterface 4 Yes 2(x1Gen2.1))
SATAInterface 1 No N/A
GbEInterface 1 Yes 1
2ndGBEInterface 1 No N/A
SDIOInterface(4bit) 1 Yes 1
SPIInterface 2 Yes 2
I2SInterface 2 Yes 2
I2CInterface 6 Yes 5
Serial 4 Yes 4