Avnet AES-ATT-M18QWG-SK-G Installation manual

Copyright © 2018 Avnet, Inc. AVNET, “Reach Further” and Avnet logo are registered
trademarks of Avnet, Inc. All other brands are the property of their respective owners.
LIT#
Global LTE IoT Starter Kit
Hardware User Guide
Version 1.4

Page 2
Document Control
Document Version: 1.4
Document Date: 02/10/2018
Document Author: Peter Fenn
Document Classification: Public
Document Distribution: Public
Prior Version History
Version
Date
Comment
1.0
07/05/2017
Initial Release
1.1
11/02/2017
Certification info added (pg 47-48)
1.2
12/04/2017
Section 4.5 cellular operating frequency bands amended
1.3
12/05/2017
Cellular operating frequency bands updated
1.4
02/10/2017
- Kit Contents diagram added
- Block Diagram updated
- URL for kit purchase updated
- Light Sensor cautionary note added
- Force USB Boot details added
- Additional GPIOs and notes on usage added
- Detailed info added to certification section
- Modem-mode use case removed
- Starter SIM details and supported countries updated
- Intro to LTE IoT Breakout Carrier plus use of Click modules for prototyping

Page 3
Contents
Terminology.....................................................................................................................7
1Introduction ...............................................................................................................8
1.1 Kit Info.................................................................................................................................9
1.2 Items Included in the Kit.......................................................................................................9
2Block Diagram and Features..................................................................................10
2.1 List of Features..................................................................................................................10
2.1.1 LTE System Board.....................................................................................................10
2.1.2 WNC M18QWG Global Module..................................................................................10
2.1.3 Pulse Electronics LTE + GNSS Antennas...................................................................10
2.1.4 Expansion Interfaces for System-Level Prototyping....................................................10
2.2 LTE IoT System Board Block Diagram...............................................................................12
2.3 Location of Key Components.............................................................................................13
3LTE System Board Functional Description............................................................14
3.1 LTE Modem Module (WNC M18QWG)..............................................................................14
3.2 Expansion Connector ........................................................................................................16
3.3 2x6 Pin Peripheral Connector............................................................................................21
3.4 WNC Module Interfaces.....................................................................................................22
3.4.1 SIM Interface (3FF Micro-SIM Connector)..................................................................22
3.4.2 USB Interface ............................................................................................................23
3.4.3 UART1 Interface........................................................................................................25
3.4.4 UART2 –Software Debug UART Interface (3-pin header) ..........................................25
3.4.5 Voltage Level Translation (1.8V / 3.3V) ......................................................................26
3.4.6 ADC / Ambient Light Sensor (JP2) .............................................................................27
3.4.7 3D Accelerometer Sensor (LIS2DW12)......................................................................28
3.4.8 Pushbutton Switches (Reset, User, Boot)...................................................................29
3.4.9 LED Status Indicators (Power, WWAN, User).............................................................30
3.4.10 PCM / I2S Digital Audio Interface ...............................................................................31
3.4.11 Ethernet SGMII Interface............................................................................................32
3.4.12 User GPIO.................................................................................................................33
3.5 Power Regulation ..............................................................................................................34
3.5.1 VIN............................................................................................................................34
3.5.2 3V8 (VCC).................................................................................................................34
3.5.3 1V8_VREF (VREF)....................................................................................................36
3.5.4 VCC_UIM_SIM (UIM_VCC) .......................................................................................36
3.5.5 3V3............................................................................................................................36
3.7 WNC Module Power Control and State Interfaces..............................................................37

Page 4
3.8 Antennas...........................................................................................................................39
3.8.1 LTE Antennas (Primary, Diversity)..............................................................................39
3.8.2 GPS Antenna.............................................................................................................40
4Specifications and Ratings.....................................................................................42
4.1 Absolute Maximum Ratings...............................................................................................42
4.2 Recommended Electrical Operating Conditions .................................................................42
4.3 Power Consumption..........................................................................................................42
4.4 RF Characteristics.............................................................................................................43
4.5 Networking and Carrier......................................................................................................43
4.6 GNSS Receiver Performance ............................................................................................44
4.7 Environmental ...................................................................................................................44
4.8 Mechanical........................................................................................................................45
5Certifications ...........................................................................................................47
5.1 RoHS Compliance.............................................................................................................47
5.2 Regulatory and Network Certifications ...............................................................................47
5.2.1 Certification Documents.............................................................................................47
5.2.2 CE-RED: EMC Testing...............................................................................................47
5.2.3 CE-RED: Radio Testing .............................................................................................47
5.2.4 Electrical Safety Certification......................................................................................47
6Shipping, Handling and Storage ............................................................................48
6.1 Shipping............................................................................................................................48
6.2 Handling............................................................................................................................48
6.3 Storage .............................................................................................................................48
7Safety Recommendations ......................................................................................48
8Ordering Information...............................................................................................49
8.1 LTE System Board Accessories.........................................................................................49
8.1.1 Expansion Connector Options for Custom User Board ...............................................49
8.1.2 Pulse FPC Antenna Options.......................................................................................49
9Contact Information ................................................................................................51
10 Technical Support...................................................................................................51
11 Disclaimer ...............................................................................................................51
12 Appendix A –LTE IoT Breakout Carrier ................................................................52

Page 5
Figures
Figure 1 –Global LTE IoT Starter Kit Contents .............................................................9
Figure 2 –LTE IoT System Board –Block Diagram....................................................12
Figure 3 –LTE IoT System Board –Feature Identification .........................................13
Figure 4 –Global LTE Cat.4 IoT System Board...........................................................13
Figure 5 –Internal view of the similar WNC M18Q2 series module............................14
Figure 6 –Use Cases for Avnet LTE IoT Boards.........................................................15
Figure 7 –3D View of Samtec ERF8 / ERM8 Connector Pair.....................................16
Figure 8 –Expansion Connector Polarization..............................................................17
Figure 9 –Expansion Connector Board Stack Profile-View ........................................17
Figure 10 –Expansion Connector Pin Numbering.......................................................20
Figure 11 –2x6 Peripheral Connector Board Edge-View............................................21
Figure 12 –USB Interface Drivers Enumerate on Windows Host Computer .............24
Figure 13 –Board Detail Showing Light Sensor (U3)..................................................27
Figure 14 –CODEC Interface Using PCM or I2S........................................................31
Figure 15 –Sleep and Power Control of WNC Module ...............................................38
Figure 16 –Detail of U.FL Antenna Connectors ..........................................................39
Figure 17 –GPS Antenna Circuit Diagram ..................................................................40
Figure 18 –Mechanical Details (1 of 2)........................................................................45
Figure 19 –Pulse FPC Antenna Options .....................................................................50
Figure 20 –LTE IoT Breakout Carrier (plus Click Modules)........................................52

Page 6
Tables
Table 1 –Summary of Key Specifications for LTE System Board ..............................11
Table 2 –J1 Expansion Connector Pinout (Inner Row)...............................................18
Table 3 –J1 Expansion Connector Pinout (Outer Row)..............................................19
Table 4 –2x6 Pmod Peripheral Connector Pinout.......................................................21
Table 5 –SIM Card Interface Connections ..................................................................22
Table 6 –WNC USB Interface Connections ................................................................23
Table 7 –USB Logical Interfaces Reported by Windows Device Manager................24
Table 8 –Software Debug UART Header (J9).............................................................25
Table 9 –ADC Input Source Selector (JP2).................................................................27
Table 10 –LIS2DW12 Interrupt Outputs......................................................................28
Table 11 –Pushbutton Switch Functions.....................................................................29
Table 12 –LED Indicator Functions .............................................................................30
Table 13 –PCM / I2S Digital Audio Interface Pins ......................................................31
Table 14 –GPIO Signals Available on Expansion Connector.....................................33
Table 15 –GPIO Signals Assigned Local Functions ...................................................33
Table 16 –Summary of LTE System Board Voltages .................................................34
Table 17 –Control and State Signals...........................................................................37
Table 18 –WAKEUP_IN and WAKEUP_OUT.............................................................37
Table 19 –FPC Antenna Options from Pulse..............................................................39
Table 20 –Absolute Maximum Ratings........................................................................42
Table 21 –Recommended Electrical Operating Conditions........................................42
Table 22 –Power Consumption ...................................................................................42
Table 23 –TX Power and RX Sensitivity .....................................................................43
Table 24 –Networking and Carrier Characteristics (Europe Operation) ....................43
Table 25 –GNSS receiver performance ......................................................................44
Table 26 –Environmental Characteristics....................................................................44
Table 27 –Mechanical Characteristics.........................................................................45
Table 28 –Certified Pulse Antennas............................................................................47
Table 29 –Ordering Information...................................................................................49
Table 30 –Height options for Samtec ERM8 Expansion Connector ..........................49
Table 31 –FPC Antenna Options from Pulse..............................................................49
Table 32 –Contact Information ....................................................................................51

Page 7
Terminology
Abbreviation
Definition
AC
Alternating Current
CE
European Conformity (Conformité Européene)
DC
Direct Current
ETSI
European Telecommunications Standards Institute
FCC
Federal Communications Commission
GND
Ground
GPIO
General Purpose Input / Output
I/O
Input / Output
IoT
Internet of Things
I2C
Inter-Integrated Circuit
JTAG
Joint Test Action Group
MEMs
Micro-Electro-Mechanical Systems
LTE
Long Term Evolution
N/A
Not Applicable
N/C
Not Connected
PIN
Personal Identification Number
Pmod
Peripheral module (Digilent Inc. trademark)
SIM
Subscriber Identity Module
SoC
System on Chip
SoM
System on Module
SPI
Serial Peripheral Interface
UART
Universal Asynchronous Receiver/Transmitter
UIM
User Identity Module
USB
Universal Serial Bus
Vref
Voltage reference
WCDMA
Wideband Code Division Multiple Access
WNC
Wistron NeWeb Corporation

Page 8
1 Introduction
The Global LTE IoT Starter Kit is a next-generation System-on-Module IoT solution, enabling the design
of cellular connected edge devices, for operation in Europe.
Powered by AT&T IoT services available through Avnet, this kit provides a complete development
environment for sensor-to-cloud applications and services.
Designed to be used for both prototyping and production, the slim form-factor LTE System Board with it’s
regional certifications and pre-registered Micro-SIM card for AT&T M2X service (included in the kit), as
well as versatile expansion options, together provide a high level of enablement that facilitates easy IoT
deployment and reduction in overall risk.
The Starter Kit features a small (79.5 mm x 30 mm) LTE System Board built around a Wistron NeWeb
(WNC) M18QWG global LTE Cat-4 modem module. The M18QWG module provides cellular modem
functionality plus an applications processor core dedicated for user applications, eliminating the need for
an external host processor. A rich set of embedded system peripherals, controllable through the user’s
application code, are easily accessible via a 60-pin expansion connector and 2x6 peripheral module
header. This enables easy system customization with application specific sensors and I/O interfaces
through the addition of user-created or off-the-shelf plug-in boards. The LTE System Board includes
ambient light, temperature and accelerometer sensors onboard, for out-of-box demonstration examples.
User application code runs directly on the M18QWG module, leveraging the OpenEmbedded software
framework for Linux application development. A Software Development Kit (SDK) specific to the
M18QWG module provides the necessary API calls to access hardware peripherals and system
resources. Application code built with the SDK is loaded into the M18QWG module through a USB
interface on the development board eliminating the need for external proprietary JTAG cables.
Cloud application development is supported by AT&T’s M2X Data Services and Flow Designer.
- M2X is a cloud-based, fully managed data storage service for connected machine-to-machine
(M2M) devices
- Flow Designer provides a visual editing environment for the design of connected applications,
enabling IoT developers to rapidly create and deploy innovative new applications.
Design goals of this LTE IoT Starter Kit included the following:
- Provide a versatile prototyping- and production-ready (cost-optimized) platform for development
and productized custom applications using WNC M18QWG Cat.4 cellular modem and GPS, for
deployment Globally via AT&T’s partner LTE networks
- Provide hardware expansion examples using:
- PmodTM-compatible peripheral boards,
- Custom breakout board
- Provide reference designs that accelerate development of applications for popular use cases
- With the provided AT&T SIM starter pack, demonstrate the use of:
- AT&T M2X and Flow Designer
- Additional 3rd party cloud services such as AWS, Watson IoT, and Azure

Page 9
1.1 Kit Info
Part Number: AES-ATT-M18QWG-SK-G
Price: $139.00 USD
Kit URL: http://cloudconnectkits.org/product/global-lte-starter-kit
Buy Page: AES-ATT-M18Q2FG-SK-G
1.2 Items Included in the Kit
•LTE System Board (p/n: AES-ATT-M18QWG-M1-G )
•Pulse FPC antennas (LTE Primary Antenna, GPS Antenna, LTE Diversity Antenna)
•Micro-SIM card (100K data points on AT&T M2X IoT platform services plus 200 SMS messages,
good for 60 days from activation)
•Universal AC/DC power supply with regional adaptors (5V @ 2.5A)
•USB Cable for programming and debug)
Figure 1 –Global LTE IoT Starter Kit Contents

Page 10
2 Block Diagram and Features
This section summarizes the features of the development board, followed by functional descriptions.
2.1 List of Features
The following features are supported:
2.1.1 LTE System Board
M18QWG Global LTE SoC Module
Ambient Light Sensor
3-Axis Accelerometer
Temperature Sensor
USB Interface
60-pin High-density Expansion Connector (1.8V levels)
2x6 Peripheral Module Connector (3.3V levels)
Power Regulation
2.1.2 WNC M18QWGGlobal Module
Supports Global LTE bands 1/2/3/5/7/8/20/28/38/40
Cat-4 LTE (up to 150/50 Mbps Download/Upload)
2G/3G Fallback
GPS
Based on Qualcomm MDM9207
oARM® Cortex™ A7 Quad Core
oOne of the A7 cores is dedicated for User Application
Rich Peripheral Features
2.1.3 Pulse Electronics LTE + GNSS Antennas
Three antennas implemented as two foldable FPC antenna-assemblies
2G/3G/4G MIMO
GNSS (GPS, Glonass)
Antenna interface to the LTE System board is via three space-efficient U.FL connectors
2.1.4 Expansion Interfaces for System-Level Prototyping
Two interfaces facilitate the adding of custom hardware to the LTE System board:
System expansion interface (1.8V I/O) is a 60 pin expansion connector (Samtec ERF8 /
ERM8 series) on the underside of the system board. WNC module peripherals are accessible
via this interface at 1.8V signalling levels, if 3.3V (or 2.5V) levels are required by the user’s
custom circuitry, then voltage translator devices must be added to the user’s board.
Pmod™-compatible interface (3.3V I/O) is 6x2 pin connector facilitates an easy to use
interface via I2C or SPI peripherals, for access to a wide range of Pmod™ peripheral boards.
The relaxed pitch of this connector and low pin count of these interfaces also permits wiring-in
other 3.3V expansion boards (eg. MikroElektronika Click modules or Grove sensor boards) for
prototyping system-level solutions

Page 11
Table 1 –Summary of Key Specifications for LTE System Board
Product Parameter
Relevant Characteristics
MSRP
$99 @ 100+ units
Description
Embedded LTE and GPS system board offering two modes of operation:
- Host mode
- Modem mode (aka Slave mode. No Avnet support for this mode currently)
Application Interface
WNC API (Host mode only)
WNC AT Commands
Cellular Technology
LTE Cat.4, bands 1/3/7/8/20/28/38/40 (up to 150/50 Mbps DL/UL)
WCDMA, bands 1/8, 3GPP release 8
GSM, E-GSM 900, DCS 1800
GNSS Location Tracking
GPS, GLONASS (-162 dBm tracking sensitivity)
Peripheral Interfaces
HS USB 2.0 w/ PHY, SGMII, HSIC, UARTs (4 wire and 2 wire),
SDC1/SPI1, I2C/SPI2, USIM, GPIOs, ADC, PCM/I2S, JTAG
Power Consumption
See datasheet (utilizes power-efficient ARM Cortex-A7 technology)
Supply Voltage
4.5 V to 16 V DC
Expansion Interfaces
Pmod™-compatible connector (3.3V levels, 2x6 pin, 2.54 mm pitch)
SAMTEC ERM8 60pin connector (1.8V levels, 2x30pin, 0.8 mm pitch)
End-Device Certified
Regulatory and network certifications planned for Europe only
Data Service
Starter SIM includes:
- 100K data points on AT&T M2X service,
- 200 SMS messages,
- good for 60 days from activation
Data Interface
N/A in Host mode
Dimensions (mm)
79.5mm x 30 mm
Warranty
1 year

Page 12
2.2 LTE IoT System Board Block Diagram
Figure 2 –LTE IoT System Board –Block Diagram

Page 13
2.3 Location of Key Components
Figure 3 –LTE IoT System Board –Feature Identification
Figure 4 –Global LTE Cat.4 IoT System Board

Page 14
3 LTE System Board Functional Description
The following sections describe the key functional blocks on the AT&T LTE IoT System Board
3.1 LTE Modem Module (WNC M18QWG)
The M18QWG is a SoC modem module from Wistron NeWeb Corporation (WNC) that provides
Cat.4 LTE cellular wireless connectivity plus GNSS location tracking, as well as a full-featured
application processor subsystem with peripheral interfaces and functions uniquely designed to
address the power/performance/cost constraints of IoT and M2M applications.
The quad-core ARM Cortex A7 applications processor on this module is based on Qualcomm’s
MDM9207 architecture and offers (OFDMA-related) software based signal processing capabilities
that significantly exceeds the efficiency of traditional ARM based communications processors.
Host mode: The WNC module will normally operate in “host mode”, where one of the ARM
Cortex A7 cores in the on-module Qualcomm MDM device is reserved for use as the system
processor for user applications. (The other three A7 cores are dedicated to the modem functions).
Modem mode: WNC module operation in “slave mode” (as a peripheral to an external processor
interfaced to the WNC module via USB interface) is not currently supported
The M18QWG also provides system peripheral interfaces and library support for these,
(eg. USB 2.0, I2C, SPI, SGMII, PCM, HSIC, UIM, UART*, SDIO*)
Refer to the next section pinout listing of the 60 pin Expansion Connector (Samtec ERF8) for
detail regarding the M18QWG module I/O that is accessible to the User
Documentation for the M18Q2 series WNC North America module that shares similar functionality
is available at the FCC certification website https://fccid.io/NKRM18Q2
Figure 5 –Internal view of the similar WNC M18Q2 series module

Page 15
Figure 6 –Use Cases for Avnet LTE IoT Boards
…

Page 16
3.2 Expansion Connector
The peripheral interfaces of the WNC M18QWG module are made available to the developer for
custom system design via the board’s 60 pin Expansion Connector.
This is interface is implemented using a 2x30 pin, 0.8mm pitch, Samtec ERF8 series connector,
providing a robust, space-efficient and economical stacking solution that is especially attractive for
cases where small overall physical size of the final product is vital.
Figure 7 –3D View of Samtec ERF8 / ERM8 Connector Pair

Page 17
The matching Samtec ERM8 connector that is fitted to the custom end product PCB, is made
available in three different stacking heights, to better accommodate height clearance requirements
of your custom hardware. These offer 7mm, 10mm or 14mm overall clearance between the boards
Manuf.
Avnet P/N
Description
Samtec
ASP⁃197278⁃01
ERM8 series connector to match ERF8 socket
(7 mm mated connector height)
Samtec
ASP⁃197278⁃02
ERM8 series connector to match ERF8 socket
(10 mm mated connector height)
Samtec
ASP⁃197278⁃04
ERM8 series connector to match ERF8 socket
(14 mm mated connector height)
Figure 8 –Expansion Connector Polarization
Figure 9 –Expansion Connector Board Stack Profile-View

Page 18
Table 2 –J1 Expansion Connector Pinout (Inner Row)
J1
pin
PCB Signal
Name
Description
WNC
pin
PU
/PD
WNC
Modem Mode
WNC
Host Mode
1
VIN
DC Input Voltage (5V)
-
-
-
3
VIN
DC Input Voltage (5V)
-
-
-
5
VIN
DC Input Voltage (5V)
-
-
-
7
VIN
DC Input Voltage (5V)
-
-
-
9
UART1_RX
Receive for WNC UART1
82
PD
UART1_RX
UART1_RX
11
UART1_TX
Transmit for WNC UART1
83
PD
UART1_TX
UART1_TX
13
UART2_RX
Receive for WNC UART2
106
PD
UART2_RX
UART2_RX
15
UART2_TX
Transmit for WNC UART2
107
PD
UART2_TX
UART2_TX
17
USB_D-
USB Data Negative
88
USB_DN
USB_DN
19
USB_D+
USB Data Positive
86
USB_DP
USB_DP
21
GND
GND
-
-
-
23
SGMII_MDC
SGMII Management
data clock
120
-
SGMII_MDC
25
GND
GND
-
-
-
27
SDC1_CLK
SDC1 Clock
124
-
SDC1_CLK
29
SDC1_CMD
SDC1 Command
123
-
SDC1_CMD
31
SPI1_MOSI
SPI1 MOSI / SDC1_DATA3
125
PD
SPI1_MOSI
SPI1_MOSI
33
GND
GND
-
-
-
35
SPI1_MISO
SPI1 MISO / SDC1_DATA2
126
PD
SPI1_MISO
SPI1_MISO
37
SPI2_MOSI
SPI2 MOSI
62
PD
-
SPI2_MOSI
39
SPI2_MISO
SPI2 MISO
63
PD
-
SPI2_MISO
41
GND
GND
-
-
-
43
SGMII_RX_M
SGMII receive –minus
59
-
SGMII_RX_M
45
SGMII_RX_P
SGMII receive –plus
58
-
SGMII_RX_P
47
SGMII_TX_M
SGMII transmit –minus
57
-
SGMII_TX_M
49
SGMII_TX_P
SGMII transmit –plus
56
-
SGMII_TX_P
51
GND
GND
-
-
-
53
PCM_CLK
PCM Clock
49
PD
PCM_CLK/GPIO49
PCM_CLK/GPIO49
55
PCM_DOUT
PCM Data Out
48
PD
PCM_DOUT/GPIO48
PCM_DOUT/GPIO48
57
PCM_DIN
PCM Data In
47
PD
PCM_DIN/GPIO47
PCM_DIN/GPIO47
59
PCM_SYNC
PCM Sync
46
PD
PCM_SYNC/GPIO46
PCM_SYNC/GPIO46
PD: Pull-Down
PU: Pull-Up
NP: Non-Pull

Page 19
Table 3 –J1 Expansion Connector Pinout (Outer Row)
J1
pin
Signal Name
Description
WNC
pin
PU
/PD
WNC
Modem Mode
WNC
Host Mode
2
REG_EN
3V8 Regulator Enable
-
PD
-
-
4
ADC_H
ADC ext. input (to JP2)
122
PD
ADC (via JP2)
ADC (via JP2)
6
UART1_CTS
CTS for WNC UART1
80
PD
UART1_CTS
UART1_CTS
8
UART1_RTS
RTS for WNC UART1
81
PD
UART1_RTS
UART1_RTS
10
GPIO02
GPIO02
53
PD
GPIO02
GPIO02
12
GPIO03
GPIO03
54
PD
GPIO03
GPIO03
14
GPIO04
GPIO04
55
PD
GPIO04
GPIO04
16
GND
GND
-
-
-
18
GPIO95
GPIO95
95
PD
GPIO95
GPIO95
20
GPIO94
GPIO94
94
PD
GPIO94
GPIO94
22
EPHY_RST_N
EPHY_RST_N
103
PD
-
EPHY_RST_N
24
GPIO96
GPIO96
96
PD
GPIO96
GPIO96
26
GPIO97
GPIO97
97
PD
GPIO97
GPIO97
28
I2C_SCL
I2C_SCL
61
PD
I2C_SCL
I2C_SCL
30
I2C_SDA
I2C_SDA
60
PD
I2C_SDA
I2C_SDA
32
GPIO93
GPIO93 (output only)
93
NP
GPIO93
GPIO93
34
GND
GND
-
-
-
36
GND
GND
-
-
-
38
SGMII_MDIO
SGMII MDIO
121
-
SGMII_MDIO
40
SPI1_EN
SPI1 Enable / SDC1_DATA1
127
PD
SPI1_EN
SPI1_EN
42
SPI1_CLK
SPI1 Clock / SDC1_DATA0
128
PD
SPI1_CLK
SPI1_CLK
44
GND
GND
-
-
-
46
GPIO06
GPIO06
130
PD
GPIO06
GPIO06
48
GPIO07
GPIO07
131
PU
GPIO07
GPIO07
50
EPHY_INT_N
EPHY_INT_N
132
PD
GPIO08
EPHY_INT_N
/ GPIO08
52
WAKEUP_OUT
WAKEUP_OUT
143
PD
WAKEUP_OUT
WAKEUP_OUT
54
WAKEUP_IN
WAKEUP_IN
144
PD
WAKEUP_IN
WAKEUP_IN
56
RESET_N
RESET_N
145
PD
RESET_N
RESET_N
58
1V8_VREF
WNC 1.8V LDO Output
146
VREF
VREF
60
1V8_VREF
WNC 1.8V LDO Output
146
VREF
VREF
PD: Pull-Down
PU: Pull-Up
NP: Non-Pull

Page 20
Figure 10 –Expansion Connector Pin Numbering