iWave iW-RainboW-G25D Installation manual

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Snapdragon 820 SMARC Development Platform Hardware User Guide
iWave Systems Technologies Pvt. Ltd.
iW-RainboW-G25D
Snapdragon 820 SMARC Development Platform
Hardware User Guide
DRAFT VERSION SUBJECT TO CHANGE

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Snapdragon 820 SMARC Development Platform Hardware User Guide
iWave Systems Technologies Pvt. Ltd.
Document Revision History
Document Number
iW-PRFGD-UM-01-R1.0-REL0.1-Hardware-Snapdragon820_DevKit
Revision
Date
Description
0.1
04th Oct 2017
Intial 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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Snapdragon 820 SMARC Development Platform Hardware User Guide
iWave Systems Technologies Pvt. Ltd.
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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Snapdragon 820 SMARC Development Platform Hardware User Guide
iWave Systems Technologies Pvt. Ltd.
Table of Contents
1. INTRODUCTION ............................................................................................................................................6
1.1 Purpose ............................................................................................................................................................. 6
1.2 Overview ........................................................................................................................................................... 6
1.3 List of Acronyms................................................................................................................................................ 6
1.4 Terminlogy Description..................................................................................................................................... 8
1.5 References ........................................................................................................................................................ 8
2. ARCHITECTURE AND DESIGN......................................................................................................................... 9
2.1 Snapdragon 820 SMARC SOM Block Diagram .................................................................................................. 9
2.2 Snapdragon 820 SMARC SOM Features.......................................................................................................... 10
2.3 SMARC MXM Connector................................................................................................................................. 12
2.4 On Board Switches.......................................................................................................................................... 28
2.5 Serial Interface Features................................................................................................................................. 30
2.5.1 Debug UART Port ........................................................................................................................................ 30
2.5.2 Data UART Header ...................................................................................................................................... 31
2.6 High Speed Interface Features........................................................................................................................ 32
2.6.1 PCIe Ports ....................................................................................................................................................32
2.6.2 USB3.0 Host.................................................................................................................................................37
2.7 Communication Interface Features ................................................................................................................ 38
2.7.1 Gigabit Ethernet Port ..................................................................................................................................38
2.7.2 USB2.0 Host.................................................................................................................................................39
2.7.3 USB2.0 OTG .................................................................................................................................................40
2.7.4 SDIO Port ..................................................................................................................................................... 41
2.8 Audio/Video Features..................................................................................................................................... 41
2.8.1 HDMI ........................................................................................................................................................... 41
2.8.2 MIPI DSI Display ..........................................................................................................................................42
2.8.3 MIPI CSI Camera..........................................................................................................................................44
2.9 Audio & Video Expansion Connector.............................................................................................................. 46
2.10 Carrier Expansion Connector .......................................................................................................................... 49
2.11 Additional Features......................................................................................................................................... 55
2.11.1 SPI Flash ......................................................................................................................................................55
2.11.2 RTC Coin Cell Holder ....................................................................................................................................55
3. TECHNICAL SPECIFICATION.......................................................................................................................... 56
3.1 Electrical Characteristics .................................................................................................................................56
3.2 Environmental Characteristics........................................................................................................................ 57
3.2.1 Environmental Specification........................................................................................................................ 57
3.2.2 RoHS Compliance ........................................................................................................................................57
3.2.3 Electrostatic Discharge................................................................................................................................57
3.3 Mechanical Characteristics ............................................................................................................................. 58
3.3.1 Snapdragon 820 SMARC SOM Mechanical Dimensions.............................................................................. 58
4. ORDERING INFORMATION .......................................................................................................................... 60

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Snapdragon 820 SMARC Development Platform Hardware User Guide
iWave Systems Technologies Pvt. Ltd.
List of Figures
Figure 1: Snapdragon 820 SMARC Development Platform Block Diagram ...................................................................... 9
Figure 2: SMARC MXM Connector..................................................................................................................................12
Figure 3: SMARC On Board Switches ..............................................................................................................................28
Figure 4: Debug UART .....................................................................................................................................................30
Figure 5: Data UART Header ...........................................................................................................................................31
Figure 6: PCIex4 Connector.............................................................................................................................................32
Figure 7: Mini PCIe Connector ........................................................................................................................................35
Figure 8: USB3.0 Host......................................................................................................................................................37
Figure 9: RJ45 Magjack....................................................................................................................................................38
Figure 10: USB2.0 Host Port............................................................................................................................................39
Figure 11: USB2.0 OTG....................................................................................................................................................40
Figure 12: HDMI Output..................................................................................................................................................41
Figure 13: MIPI Display Connector..................................................................................................................................42
Figure 14: MIPI Camera Connector.................................................................................................................................44
Figure 15: Audio & Video Expansion connector .............................................................................................................46
Figure 16: SMARC Expansion Connector ........................................................................................................................49
Figure 17: Power Jack......................................................................................................................................................56
Figure 18: Mechanical dimension of Snapdragon 820 SMARC Carrier Board- Top View ...............................................58
Figure 19: Mechanical dimension of Snapdragon 820 SMARC Carrier Board - Side View .............................................59
List of Tables
Table 1: Acronyms & Abbreviations..................................................................................................................................6
Table 2: Terminology ........................................................................................................................................................8
Table 3: SMARC MXM Connector Pin Out ......................................................................................................................13
Table 4: Board Configuration Switch ..............................................................................................................................29
Table 5: Data UART Header Pin Out................................................................................................................................31
Table 6: PCIex4 Connector Pin Out .................................................................................................................................33
Table 7: Mini-PCIe Connector Pin Out ............................................................................................................................35
Table 8: MIPI Display Connector Pin Out........................................................................................................................43
Table 9: MIPI Camera Connector Pin Out .......................................................................................................................45
Table 10: Audio & Video Expansion Connector Pin Out .................................................................................................47
Table 11: Expansion Connector1 Pin Out........................................................................................................................50
Table 12: Expansion Connector2 Pin Out........................................................................................................................53
Table 13: Power Input Requirement...............................................................................................................................57
Table 14: Environmental Specification ...........................................................................................................................57
Table 15: Orderable Product Part Numbers ...................................................................................................................60

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Snapdragon 820 SMARC Development Platform Hardware User Guide
iWave Systems Technologies Pvt. Ltd.
1. INTRODUCTION
1.1 Purpose
This document is the Hardware User Guide for the Snapdragon 820 SMARC Development platform “iW-RainboW-
G25D” based on the Qualcomm APQ8096 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 Snapdragon
820 APQ8096 based SMARC development platform from a Hardware Systems perspective. Complete information
about the Snapdragon 820 APQ8096 SMARC SOM is explained in another document “iW-RainboW-
G25M_Snapdragon820_SMARC_SOM-HardwareUserGuide”.
1.2 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 power envelope is typically under
6W although designs up to about 15W are possible.
iW-RainboW-G25D Development Platform comes with SMARC V2.0 Generic Carrier, APQ8096 based SMARC SOM
along with 5.5-inch Capacitive Touch Display. The development board can be used for quick prototyping of various
applications targeted by the APQ8096 processor. With the 120mmx120mm Nano ITX size, SAMRC carrier board is
highly packed with all the necessary on-board connectors to validate the SMARC features of APQ8096 SMARC SOM.
1.3 List of Acronyms
The following acronyms will be used throughout this document.
Table 1: Acronyms & Abbreviations
Acronyms
Abbreviations
ARM
Advanced RISC Machine
CMOS
Complementary Metal-Oxide Semiconductor
CPU
Central Processing Unit
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
Hz
Hertz
I2C
Inter-Integrated Circuit
I2S
Inter-IC Sound Bu
IC
Integrated Circuit

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Acronyms
Abbreviations
MIPI
Mobile Industry Processor Interface
PCB
Printed Circuit Board
PDM
Pulse Density Modulation
RF
Radio Frequency
RoHS
Restriction of Hazardous Substances
RTC
Real Time Clock
SD
Secure Digital
SDRAM
Synchronous Dynamic Random Access Memory
SMARC SOM
Smart Mobility ARChitecture
TBD
To Be Defined
UART
Universal Asynchronous Receiver/Transmitter
USB
Universal Serial Bus
USB OTG
USB On The Go
V
Voltage

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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
DIFF
Differential Signal
LVDS
Low Voltage Differential Signal
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
•APQ8096 Hardware User Manuals.
•APQ8096 SMARC SOM Hardware User Manual
•SMARC Specification V2.0

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2. ARCHITECTURE AND DESIGN
This section provides detailed information about the Snapdragon 820 SMARC SOM features and Hardware architecture
with high level block diagram.
2.1 Snapdragon 820 SMARC SOM Block Diagram
80pin
Carrier
Expansion
Connector2
USB3.0
Switch
RJ45 Stack
APQ8096 SMARC Edge Connector
iW-RainboW-G25D Snapdragon 820 SMARC DevKit Block Diagram
MIPI DSI0 MIPI DSI (4 lane)
HDMI
MI2S_2
MIPI DSI0
Connector
HDMI
Connector
MIPI CSI0,
CCI_I2C0 MIPI CSI0
Connector
HDMI x 1
CSI0 lane[1:0], I2C x 1
I2S
Audio Codec
Audio In/Out
Jack
I2S Audio In/Out
PCIe2 to
GBE0
Bottom
Top
10/100/100Mbps Ethernet
USB2.0 Host x 1
USB TypeC
Connector2
PCIe x 4 Slot
PCIe1
PCIe x 1
PCIe1*/
Wi-Fi & BT
PCIe2*/
Ethernet
PCIe x 1*
PCIe x 1*
100 pin SOM
Expansion Connector
SSC_SPI,
GPIOs
SPI x 1, GPIOs
UART Header BLSP9_
UART
UART (with CTS & RTS) x 1
BLSP10_
UART
UART x 1
BLSP11_
UART
UART (with CTS & RTS) x 1
BLSP7_I2C I2C x 1
DIP Switch
(4p X3)
BOOT_SEL
BOOT_SEL x 3
To On-board
Peripherals
& SOM
12V Power Jack
On-Board
Regulators
12V
RTC Coin cell
Holder
VDD_RTC 3V
SDC2 Standard SD/
µSD Connector
SDIO x 1
SPI0
SPI Flash SPI x 1
USB3.0 Stack
USBHUB_P1
(HS &SS)
Bottom
Top
USB3.0 Host x 1
USBHUB_P2
(HS &SS)
USB3.0 Host x 1
USB2.0 1:2
Hub
Mini PCIe
Connector
USB2.0 Stack
USBHUB_P2
(HS)
Bottom
Top
USB2.0 Host x 1
USBHUB_P3
(HS)
Micro USB
Connector USB1_HS
USB2.0 OTG x 1
PCIe Switch
CONTROL
CTRL _SIG x 9
80pin
A&V
Expansion
Connector
MIPI DSI1 MIPI DSI x 4lane
MIPI CSI1,
CCI_I2C1
MIPI CSI x 4lane, I2C x 1
MI2S_3 HAD/I2S x 1
I2C, GPIOs I2Cx 1, GPIOs
M.2 Module
Connector
SEL DIP SW
DIP SW
CSI0 lane[3:2]
80 pin
Carrier
Expansion
Connector1
BLSP8_
UART
Debug micro
USB Port
USB to UART
TXRX UART
USB
USBHUB_P3
(SS)
USBHUB_P4
(SS)
SSC_GPIO
GPIO
MIPI CSI2,
CCI_I2C2
CSI2 lane[1:0], I2C x 1
SLIMBUS
CODEC
CSI0 lane[3:2]
DMIC*
LINE OUT*
EXP_HPH*
SLIMBUS
Figure 1: Snapdragon 820 SMARC Development Platform Block Diagram

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2.2 Snapdragon 820 SMARC SOM Features
The Snapdragon 820 SMARC carrier board supports the following features to validate the Snapdragon 820 SMARC
SOM Edge connector interface.
On Board Switches
•Power ON/OFF Switch
•Board Configuration Switch
•Reset Switch
•Force Boot Switch
Serial Interface Features
•Debug UART through USB Micro AB Connector
•Data UART x 1 Port through Header
High Speed Interface Features
•PCIe x 1 Port through x4 connector or Mini-PCIe connector
•USB 3.0 Host x 2 Port through USB 3.0 Type A Connector
•USB Type C x 1 Port
Communication Features
•100/1000Mbps Ethernet through RJ45MagJack
•USB 2.0 Host x 2 Port through USB 2.0 Type A Connector
•USB 2.0 OTG x 1 Port through Micro AB Connector
•SDHI (4bit) x 1 Port through Standard SD Connector
Audio/Video Features
•HDMI X 1 Port through Type A Connector
•MIPI DSI 4lane Display Connector with Capacitive Touch
•MIPI CSI 2lane/4lane Camera Connector
Additional Features
•SPI Flash
•RTC Coin Cell holder
•M.2 Connector (Optional)
A&V Expansion Connector
•MIPI CSI - 4 lanes x 1 Port
•MIPI CSI - 4 lanes x 1 Port
•I2S/HDA x 1 Port

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Carrier board Expansion Connectors
•MIPI CSI - 4 lanes x 1 Port
•SSC_UART x 3 Port
•SSC_I2C x 1 Port
•SLIMBUS x 1 Port
•Audio Code Inputs and Outputs (Optional)
•GPIO
General Specification
•Power Supply : 12V, 2A Power Input Jack
•Form Factor : 120mm X 120mm Nano ITX

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2.3 SMARC MXM Connector
The APQ8096SMARC carrier board supports 314Pin SMARC MXM Edge mating connector for SMARC SOM attachment.
This standard 314-pin robust connector is capable of handling high-speed serialized signals and can be used for size
constrained embedded applications. This SMARC MXM Edge mating connector (J16) is physically located at the top of
the board as shown below.
Figure 2: SMARC MXM Connector

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Snapdragon 820 SMARC Development Platform Hardware User Guide
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Table 3: SMARC MXM Connector Pin Out
Pin
No.
SMARC Edge
Connector Pin Name
Signal Name
CPU Ball Name/
Pin Number
Signal Type/
Termination
Description
P1
SMB_ALERT_1V8#
SMB_ALERT(GPI
O_14)
GPIO_14/
BE7
O, 1.8V CMOS
SM Bus Alert# (interrupt)
signal
P2
GND
GND
NA
Power
Ground.
P3
CSI1_CK+
MIPI_CSI1_DCLK
_P
MIPI_CSI1_DCLK_P/
BE5
O, DIFF
MIPI CSI1 differential clock
positive
P4
CSI1_CK-
MIPI_CSI1_DCLK
_M
MIPI_CSI1_DCLK_M/
BD6
O, DIFF
MIPI CSI1 differential clock
negative
P5
GBE1_SDP
NC
NA
NA
NC
P6
GBE0_SDP
NC
NA
NA
NC
P7
CSI1_RX0+
MIPI_CSI1_DLN
0_P
MIPI_CSI1_DLN0_P/
BD4
O, DIFF
MIPI CSI1 differential data
lane 0 positive
P8
CSI1_RX0-
MIPI_CSI1_DLN
0_M
MIPI_CSI1_DLN0_M/
BC7
O, DIFF
MIPI CSI1 differential data
lane 0 negative
P9
GND
GND
NA
Power
Ground.
P10
CSI1_RX1+
MIPI_CSI1_DLN
1_P
MIPI_CSI1_DLN1_P/
BC5
O, DIFF
MIPI CSI1 differential data
lane 1 positive
P11
CSI1_RX1-
MIPI_CSI1_DLN
1_M
MIPI_CSI1_DLN1_M/
BB6
O, DIFF
MIPI CSI1 differential data
lane 1 negative
P12
GND
GND
NA
Power
Ground.
P13
CSI1_RX2+
MIPI_CSI1_DLN
2_P
MIPI_CSI1_DLN2_P/
BA7
O, DIFF
MIPI CSI1 differential data
lane 2 positive
P14
CSI1_RX2-
MIPI_CSI1_DLN
2_M
MIPI_CSI1_DLN2_M/
BA5
O, DIFF
MIPI CSI1 differential data
lane 2 negative
P15
GND
GND
NA
Power
Ground.
P16
CSI1_RX3+
MIPI_CSI1_DLN
3_P
MIPI_CSI1_DLN3_P/
AY6
O, DIFF
MIPI CSI1 differential data
lane 3 positive
P17
CSI1_RX3-
MIPI_CSI1_DLN
3_M
MIPI_CSI1_DLN3_M/
AY4
O, DIFF
MIPI CSI1 differential data
lane 3 negative
P18
GND
GND
NA
Power
Ground.
P19
GBE0_MDI3-
GBE0_MDI3-
NA
IO, DIFF
Gigabit Ethernet MDI
differential pair 3 negative.
P20
GBE0_MDI3+
GBE0_MDI3+
NA
IO, DIFF
Gigabit Ethernet MDI
differential pair 3 positive.
P21
GBE0_LINK100#
GBE0_LINK100#
NA
I, 3.3V CMOS
100Mbps Ethernet link
status LED
P22
GBE0_LINK1000#
GBE0_LINK1000
#
NA
I, 3.3V CMOS
Gigabit Ethernet link status
LED
P23
GBE0_MDI2-
GBE0_MDI2-
NA
IO, DIFF
Gigabit Ethernet MDI
differential pair 2 negative.
P24
GBE0_MDI2+
GBE0_MDI2+
NA
IO, DIFF
Gigabit Ethernet MDI
differential pair 2 positive.

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Pin
No.
SMARC Edge
Connector Pin Name
Signal Name
CPU Ball Name/
Pin Number
Signal Type/
Termination
Description
P25
GBE0_LINK_ACT#
GBE0_LINK_ACT
#
NA
I, 3.3V CMOS
Gigabit Ethernet activity
status
P26
GBE0_MDI1-
GBE0_MDI1-
NA
IO, DIFF
Gigabit Ethernet MDI
differential pair 1 negative.
P27
GBE0_MDI1+
GBE0_MDI1+
NA
IO, DIFF
Gigabit Ethernet MDI
differential pair 1 positive.
P28
GBE0_CTREF
VDDCT
NA
Power
Power for the Centre Tap
of Mack Jack connector
P29
GBE0_MDI0-
GBE0_MDI0-
NA
IO, DIFF
Gigabit Ethernet MDI
differential pair 0 negative.
P30
GBE0_MDI0+
GBE0_MDI0+
NA
IO, DIFF
Gigabit Ethernet MDI
differential pair 0 positive.
P31
SPI0_CS1#
BLSP1_SPI_CS1_
N(GPIO_90)
GPIO_90/
W3
I, 1.8V CMOS
SPI0 Chip Select 1
P32
GND
GND
NA
Power
Ground.
P33
SDIO_WP
SDIO_WP
GPIO_23/
L5
O, 3.3V CMOS
SDC write Protect.
P34
SDIO_CMD
SDC2_CMD
SDC2_CMD/
AD6
IO, 1.8/3.3V
CMOS
SD command.
P35
SDIO_CD#
SDIO_CD#
GPIO_38/
BJ47
O, 3.3V/
CMOS
SD Card Detect.
P36
SDIO_CK
SDC2_CLK
SDC2_CLK/
AE5
I, 1.8/3.3V
CMOS
SD Clock.
P37
SDIO_PWR_EN
SDIO_PWR_EN
GPIO_29/
BG3
I, 3.3V
CMOS
SD Power enable.
P38
GND
GND
NA
Power
Ground.
P39
SDIO_D0
SDC2_DATA_0
SDC2_DATA_0/ AD8
IO, 1.8/3.3V
CMOS
SD data 0.
P40
SDIO_D1
SDC2_DATA_1
SDC2_DATA_1/ AC5
IO, 1.8/3.3V
CMOS
SD data 1
P41
SDIO_D2
SDC2_DATA_2
SDC2_DATA_2/ AE7
IO, 1.8/3.3V
CMOS
SD data 2
P42
SDIO_D3
SDC2_DATA_3
SDC2_DATA_3/ AF6
IO, 1.8/3.3V
CMOS
SD data 3
P43
SPI0_CS0#
BLSP1_SPI_CS_
N(GPIO_2)
GPIO_2/
H6
I, 1.8V CMOS
SPI0 Chip Select 0
P44
SPI0_CK
BLSP1_SPI_CLK(
GPIO_3)
GPIO_3/
H8
I, 1.8V CMOS
SPI0 Clock
P45
SPI0_DIN
BLSP1_SPI_MIS
O(GPIO_1)
GPIO_1/
G7
O, 1.8V CMOS
SPI0 Master IN Slave Out

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Pin
No.
SMARC Edge
Connector Pin Name
Signal Name
CPU Ball Name/
Pin Number
Signal Type/
Termination
Description
P46
SPI0_DO
BLSP1_SPI_MOS
I(GPIO_0)
GPIO_0/
G5
I, 1.8V CMOS
SPI0 Master Out Slave In
P47
GND
GND
NA
Power
Ground.
P48
SATA_TX+
NC
NA
NA
NA
P49
SATA_TX-
NC
NA
NA
NA
P50
GND
GND
NA
Power
Ground.
P51
SATA_RX+
NC
NA
NA
NA
P52
SATA_RX-
NC
NA
NA
NA
P53
GND
GND
NA
Power
Ground.
P54
ESPI_CS0#
SSC_SPI_1_CS_
N(SSC_8)
SSC_8/
C33
I, 1.8V CMOS
SSC_SPI_1 Chip Select 0
P55
ESPI_CS1#
SSC_SPI_1_CS1_
N(SSC_0)
SSC_0/
D36
I, 1.8V CMOS
SSC_SPI_1 Chip Select 1
P56
ESPI_CK
SSC_SPI_1_CLK(
SSC_9)
SSC_9/
E33
I, 1.8V CMOS
SSC_SPI_1 Clock
P57
ESPI_IO_0
SSC_SPI_1_MOS
I(SSC_10)
SSC_10/
D32
IO, 1.8V CMOS
SSC_SPI_1 Master Out
Slave IN
P58
ESPI_IO_1
SSC_SPI_1_MIS
O(SSC_11)
SSC_11/
C35
IO, 1.8V CMOS
SSC_SPI_1 Master IN Salve
Out
P59
GND
GND
NA
Power
Ground.
P60
USB0+
USB1_HS_DP
USB1_HS_DP/
AA3
IO, DIFF
USB Port0 Data Positive
P61
USB0-
USB1_HS_DM
USB1_HS_DM/
AB4
IO, DIFF
USB Port0 Data Negative
P62
USB0_EN_OC#
USB0_EN_OC#(
GPIO_21)
GPIO_21/
H2
IO, 3.3V CMOS
USB Port0 Power Enable/
Over Current Indicator
Note: Connected via 1.8 to
3.3V level Translator
P63
USB0_VBUS_DET
USB0_VBUS_DE
T
NA`
5V, Power
USB host power detection,
when this port is used as a
device.
P64
USB0_OTG_ID
USB0_OTG_ID
NA
O, 3.3V CMOS
Connected to PMI IC
P65
USB1+
USB_HUB3OUT_
DP
NA
IO, DIFF
USB Port1 Data Positive
Note: Connected to USB
Hub
P66
USB1-
USB_HUB3OUT_
DM
NA
IO, DIFF
USB Port1 Data Negative
Note: Connected to USB
Hub
P67
USB1_EN_OC#
USB_HUB3_OC
NA
IO, 3.3V CMOS
USB Port1 Power Enable/
Over Current Indicator
Note: Connected to USB
Hub

REL0.1
Page 16 of 61
Snapdragon 820 SMARC Development Platform Hardware User Guide
iWave Systems Technologies Pvt. Ltd.
Pin
No.
SMARC Edge
Connector Pin Name
Signal Name
CPU Ball Name/
Pin Number
Signal Type/
Termination
Description
P68
GND
GND
NA
Power
Ground.
P69
USB2+
USB_HUB1OUT_
DP
NA
IO, DIFF
USB Port2 Data Positive
Note: Connected to USB
Hub
P70
USB2-
USB_HUB1OUT_
DM
NA
IO, DIFF
USB Port2 Data Negative
Note: Connected to USB
Hub
P71
USB2_EN_OC#
USB_HUB1_OC
NA
IO, 3.3V CMOS
USB Port2 Power Enable/
Over Current Indicator
Note: Connected to USB
Hub
P72
RSVD4
NC
NA
NA
NA
P73
RSVD5
NC
NA
NA
NA
P74
USB3_EN_OC#
USB_HUB2_OC
NA
IO, 3.3V CMOS
USB Port3 Power Enable/
Over Current Indicator
Note: Connected to USB
Hub
P75
PCIE_A_RST#
PCIe1_RST_N(G
PIO_130)
GPIO_130/
C3
I, 3.3V CMOS
PCIE_A RESET Out
Note: Connected via 1.8 to
3.3V level Translator
P76
USB4_EN_OC#
USB_HUB4_OC
NA
IO, 3.3V CMOS
USB Port4 Power Enable/
Over Current Indicator
Note: Connected to USB
Hub
P77
RSVD6
NC
NA
NA
NA
P78
RSVD7
NC
NA
NA
NA
P79
GND
GND
NA
Power
Ground.
P80
PCIE_C_REFCK+
NC
NA
NA
NC
Note: Optionally connected
to PCIE0_REFCLK_P
P81
PCIE_C_REFCK-
NC
NA
NA
NC
Note: Optionally connected
to PCIE0_REFCLK_M
P82
GND
GND
NA
Power
Ground.
P83
PCIE_A_REFCK+
PCIE1_REFCLK_
P
PCIE1_REFCLK_P/
AK4
I, Diff
PCIE1 Clock Positive
P84
PCIE_A_REFCK-
PCIE1_REFCLK_
M
PCIE1_REFCLK_M/
AL3
I, Diff
PCIE1 Clock Negative
P85
GND
GND
NA
Power
Ground.
P86
PCIE_A_RX+
PCIE1_RX_P
PCIE1_RX_P/
AK2
O, Diff
PCIE1 Receive Positive

REL0.1
Page 17 of 61
Snapdragon 820 SMARC Development Platform Hardware User Guide
iWave Systems Technologies Pvt. Ltd.
Pin
No.
SMARC Edge
Connector Pin Name
Signal Name
CPU Ball Name/
Pin Number
Signal Type/
Termination
Description
P87
PCIE_A_RX-
PCIE1_RX_M
PCIE1_RX_M/
AJ3
O, Diff
PCIE1 Receive Negative
P88
GND
GND
NA
Power
Ground.
P89
PCIE_A_TX+
PCIE1_TX_P
PCIE1_TX_P/
AH2
I, Diff
PCIE1 Transmit Positive
P90
PCIE_A_TX-
PCIE1_TX_M
PCIE1_TX_M/
AJ1
I, Diff
PCIE1 Transmit Negative
P91
GND
GND
NA
Power
Ground.
P92
HDMI_D2+ /
DP1_LANE0+
HDMI_TX2_P
HDMI_TX2_P/
BE23
I, Diff
HDMI Transceiver 2
Positive
P93
HDMI_D2- /
DP1_LANE0-
HDMI_TX2_M
HDMI_TX2_M/
BF22
I, Diff
HDMI Transceiver 2
Negative
P94
GND
GND
NA
Power
Ground.
P95
HDMI_D1+ /
DP1_LANE1+
HDMI_TX1_P
HDMI_TX1_P/
BH22
I, Diff
HDMI Transceiver 1
Positive
P96
HDMI_D1- /
DP1_LANE1-
HDMI_TX1_M
HDMI_TX1_M/
BG23
I, Diff
HDMI Transceiver 1
Negative
P97
GND
GND
NA
Power
Ground.
P98
HDMI_D0+ /
DP1_LANE2+
HDMI_TX0_P
HDMI_TX0_P/
BJ23
I, Diff
HDMI Transceiver 0
Positive
P99
HDMI_D0- /
DP1_LANE2-
HDMI_TX0_M
HDMI_TX0_M/
BH24
I, Diff
HDMI Transceiver 0
Negative
P100
GND
GND
NA
Power
Ground.
P101
HDMI_CK+ /
DP1_LANE3+
HDMI_TCLK_P
HDMI_TCLK_P/
BH20
I, Diff
HDMI Transceiver CLK
Positive
P102
HDMI_CK- /
DP1_LANE3-
HDMI_TCLK_M
HDMI_TCLK_M/
BG21
I, Diff
HDMI Transceiver CLK
Negative
P103
GND
GND
NA
Power
Ground.
P104
HDMI_HPD /
DP1_HPD
HDMI_HOT_PLU
G_DET(GPIO_34
)
GPIO_34/
BG45
O, 1.8V CMOS
HDMI Hot Plug Detect
P105
HDMI_CTRL_CK /
DP1_AUX+
HDMI_DDC_CLK
(GPIO_32)
GPIO_32/
BH44
I, 1.8V CMOS
HDMI I2C Clock
P106
HDMI_CTRL_DAT /
DP1_AUX-
HDMI_DDC_DA
TA(GPIO_33)
GPIO_33/
BH42
IO, 1.8V CMOS
HDMI I2C DATA
P107
DP1_AUX_SEL
NC
NA
NA
NA
P108
GPIO0 /
CAM0_PWR#
SMARC_GPIO_0
(GPIO_73)
GPIO_73/
E9
IO, 1.8V CMOS
SMARC General Purpose
Input/output 0
P109
GPIO1 /
CAM1_PWR#
SMARC_GPIO_1
(GPIO_89)
GPIO_89/
T6
IO, 1.8V CMOS
SMARC General Purpose
Input/output 1
P110
GPIO2 / CAM0_RST#
SMARC_GPIO_2
(GPIO_97)
GPIO_97/
AR49
IO, 1.8V CMOS
SMARC General Purpose
Input/output 2

REL0.1
Page 18 of 61
Snapdragon 820 SMARC Development Platform Hardware User Guide
iWave Systems Technologies Pvt. Ltd.
Pin
No.
SMARC Edge
Connector Pin Name
Signal Name
CPU Ball Name/
Pin Number
Signal Type/
Termination
Description
P111
GPIO3 / CAM1_RST#
SMARC_GPIO_3
(GPIO_98)
GPIO_98/
AP48
IO, 1.8V CMOS
SMARC General Purpose
Input/output 3
P112
GPIO4 / HDA_RST#
SMARC_GPIO_4
(GPIO_100)
GPIO_100/
AP46
IO, 1.8V CMOS
SMARC General Purpose
Input/output 4
P113
GPIO5 / PWM_OUT
SMARC_GPIO_5
(PM_GPIO4)
NA
IO, 1.8V CMOS
SMARC General Purpose
Input/output 5
Note: Connected to PMIC
P114
GPIO6 / TACHIN
SMARC_GPIO_6
(GPIO_106)
GPIO_106/
B24
IO, 1.8V CMOS
SMARC General Purpose
Input/output 6
P115
GPIO7
SMARC_GPIO_7
(GPIO_107)
GPIO_107/
A25
IO, 1.8V CMOS
SMARC General Purpose
Input/output 7
P116
GPIO8
SMARC_GPIO_8
(GPIO_108)
GPIO_108/
C25
IO, 1.8V CMOS
SMARC General Purpose
Input/output 8
P117
GPIO9
SMARC_GPIO_9
(GPIO_109)
GPIO_109/
D24
IO, 1.8V CMOS
SMARC General Purpose
Input/output 9
P118
GPIO10
SMARC_GPIO_1
0(GPIO_110)
GPIO_110/
E23
IO, 1.8V CMOS
SMARC General Purpose
Input/output 10
P119
GPIO11
SMARC_GPIO_1
1(GPIO_111)
GPIO_111/
F26
IO, 1.8V CMOS
SMARC General Purpose
Input/output 11
P120
GND
GND
NA
Power
Ground.
P121
I2C_PM_CK
NC
NA
NA
NC
Note: optionally connected
to BLSP8_I2C_CLK
P122
I2C_PM_DAT
NC
NA
NA
NC
Note: optionally connected
to BLSP8_I2C_DAT
P123
BOOT_SEL0#
BOOT_SEL0#
NA
O, 1.8V CMOS
Boot Media Select bit 0
P124
BOOT_SEL1#
BOOT_SEL1#
NA
O, 1.8V CMOS
Boot Media Select bit 1
P125
BOOT_SEL2#
BOOT_SEL2#
NA
O, 1.8V CMOS
Boot Media Select bit 2
P126
RESET_OUT#
RESOUT_N
RESOUT_N /
B26
I, 1.8V CMOS
RESOUT from CPU to all
other peripherals
P127
RESET_IN#
RESIN_N_BTN
NA
O, 1.8V CMOS
Hard RESET Input to SOM
Note: Connected to PMIC
P128
POWER_BTN#
POWER_ON_BT
N
NA
O, 1.8V CMOS
Power ON /OFF Input to
SOM
Note: Connected to PMIC
P129
SER0_TX
BLSP9_UART_TX
(GPIO_49)
GPIO_49/
BE49
I, 1.8V CMOS
BLSP9_UART Transmitter
P130
SER0_RX
BLSP9_UART_R
X(GPIO_50)
GPIO_50/
BE51
O, 1.8V CMOS
BLSP9_UART Receiver
P131
SER0_RTS#
BLSP9_UART_RF
R_N(GPIO_52)
GPIO_52/
BD50
I, 1.8V CMOS
BLSP9_UART Request to
Send

REL0.1
Page 19 of 61
Snapdragon 820 SMARC Development Platform Hardware User Guide
iWave Systems Technologies Pvt. Ltd.
Pin
No.
SMARC Edge
Connector Pin Name
Signal Name
CPU Ball Name/
Pin Number
Signal Type/
Termination
Description
P132
SER0_CTS#
BLSP9_UART_CT
S_N(GPIO_51)
GPIO_51/
BD52
O, 1.8V CMOS
BLSP9_UART Clear to Send
P133
GND
GND
NA
Power
Ground.
P134
SER1_TX
BLSP10_UART_T
X(GPIO_8)
GPIO_8/
BF50
I, 1.8V CMOS
BLSP10_UART Transmitter
P135
SER1_RX
BLSP10_UART_R
X(GPIO_9)
GPIO_9/
BG51
O, 1.8V CMOS
BLSP10_UART Receiver
P136
SER2_TX
BLSP11_UART_T
X(GPIO_58)
GPIO_58/
AJ51
I, 1.8V CMOS
BLSP11_UART Transmitter
P137
SER2_RX
BLSP11_UART_R
X(GPIO_59)
GPIO_59/
AJ49
O, 1.8V CMOS
BLSP11_UART Receiver
P138
SER2_RTS#
BLSP11_UART_R
FR_N(GPIO_61)
GPIO_61/
AH50
I, 1.8V CMOS
BLSP11_UART Request to
Send
P139
SER2_CTS#
BLSP11_UART_C
TS_N(GPIO_60)
GPIO_60/
AH48
O, 1.8V CMOS
BLSP11_UART Clear to
Send
P140
SER3_TX
BLSP8_UART_TX
(GPIO_4)
GPIO_4/
BA49
I, 1.8V CMOS
Debug UART Transmitter
Note: Optionally connected
to BLSP12_UART_TX
P141
SER3_RX
BLSP8_UART_R
X(GPIO_5)
GPIO_5/
BB48
O, 1.8V CMOS
Debug UART Receiver.
Note: Optionally connected
to BLSP12_UART_RX
P142
GND
GND
NA
Power
Ground.
P143
CAN0_TX
NC
NA
NA
NC
P144
CAN0_RX
NC
NA
NA
NC
P145
CAN1_TX
NC
NA
NA
NC
P146
CAN1_RX
NC
NA
NA
NC
P147
VDD_IN
VDD_IN
NA
O, 5V Power
Supply Voltage
P148
VDD_IN
VDD_IN
NA
O, 5V Power
Supply Voltage
P149
VDD_IN
VDD_IN
NA
O, 5V Power
Supply Voltage
P150
VDD_IN
VDD_IN
NA
O, 5V Power
Supply Voltage
P151
VDD_IN
VDD_IN
NA
O, 5V Power
Supply Voltage
P152
VDD_IN
VDD_IN
NA
O, 5V Power
Supply Voltage
P153
VDD_IN
VDD_IN
NA
O, 5V Power
Supply Voltage
P154
VDD_IN
VDD_IN
NA
O, 5V Power
Supply Voltage
P155
VDD_IN
VDD_IN
NA
O, 5V Power
Supply Voltage
P156
VDD_IN
VDD_IN
NA
O, 5V Power
Supply Voltage
S1
CSI1_TX+ /
I2C_CAM1_CK
CCI_I2C1_SCL(G
PIO_20)
GPIO_20/
I, 1.8V CMOS
MIPI CSI1 I2C Clock
S2
CSI1_TX- /
I2C_CAM1_DAT
CCI_I2C1_SDA(G
PIO_19)
GPIO_19/
IO, 1.8V CMOS
MIPI CSI1 I2C Data
S3
GND
GND
NA
Power
Ground.
S4
RSVD1
NC
NA
NA
NA

REL0.1
Page 20 of 61
Snapdragon 820 SMARC Development Platform Hardware User Guide
iWave Systems Technologies Pvt. Ltd.
Pin
No.
SMARC Edge
Connector Pin Name
Signal Name
CPU Ball Name/
Pin Number
Signal Type/
Termination
Description
S5
CSI0_TX- /
I2C_CAM0_CK
CCI_I2C0_SCL(G
PIO_18)
GPIO_18/
I, 1.8V CMOS
MIPI CSI0 I2C Clock
S6
CAM_MCK
CLK1_OUT(GPIO
_13)
GPIO_13/
I, 1.8V CMOS
Master Clock for Camera
S7
CSI0_TX+ /
I2C_CAM0_DAT
CCI_I2C0_SDA(G
PIO_17)
GPIO_17/
IO, 1.8V CMOS
MIPI CSI0 I2C Data
S8
CSI0_CK+
MIPI_CSI0_DCLK
_P
MIPI_CSI0_DCLK_P
O, DIFF
MIPI CSI0 differential Clock
positive
S9
CSI0_CK-
MIPI_CSI0_DCLK
_M
MIPI_CSI0_DCLK_M
O, DIFF
MIPI CSI0 differential Clock
negative
S10
GND
GND
NA
Power
Ground.
S11
CSI0_RX0+
MIPI_CSI0_DLN
0_P
MIPI_CSI0_DLN0_P
O, DIFF
MIPI CSI0 differential data
lane 0 positive
S12
CSI0_RX0-
MIPI_CSI0_DLN
0_M
MIPI_CSI0_DLN0_M
O DIFF
MIPI CSI0 differential data
lane 0 negative
S13
GND
GND
NA
Power
Ground.
S14
CSI0_RX1+
MIPI_CSI0_DLN
1_P
MIPI_CSI0_DLN1_P
O, DIFF
MIPI CSI0 differential data
lane 1 positive
S15
CSI0_RX1-
MIPI_CSI0_DLN
1_M
MIPI_CSI0_DLN1_M
O, DIFF
MIPI CSI0 differential data
lane 1 negative
S16
GND
GND
NA
Power
Ground.
S17
GBE1_MDI0+
NC
NA
NA
NA
S18
GBE1_MDI0-
NC
NA
NA
NA
S19
GBE1_LINK100#
NC
NA
NA
NA
S20
GBE1_MDI1+
NC
NA
NA
NA
S21
GBE1_MDI1-
NC
NA
NA
NA
S22
GBE1_LINK1000#
NC
NA
NA
NA
S23
GBE1_MDI2+
NC
NA
NA
NA
S24
GBE1_MDI2-
NC
NA
NA
NA
S25
GND
GND
NA
Power
Ground.
S26
GBE1_MDI3+
NC
NA
NA
NA
S27
GBE1_MDI3-
NC
NA
NA
NA
S28
GBE1_CTREF
NC
NA
NA
NA
S29
PCIE_D_TX+
NC
NA
NA
NA
S30
PCIE_D_TX-
NC
NA
NA
NA
S31
GBE1_LINK_ACT#
NC
NA
NA
NA
S32
PCIE_D_RX+
NC
NA
NA
NA
S33
PCIE_D_RX-
NC
NA
NA
NA
S34
GND
GND
NA
Power
Ground.
S35
USB4+
USB_HUB4OUT_
DP
NA
IO, DIFF
USB Port4 Data Positive
Note: Connected to USB
Hub