NXP Semiconductors MCIMX8DXL-WEVKUM User manual

MCIMX8DXL-WEVKUM
MCIMX8DXL-WEVK Board User Manual
Rev. 1 — 10 March 2023 User manual
Document information
Information Content
Keywords MCIMX8DXL-WEVKUM, MCIMX8DXL-WEVK, i.MX 8DXL, i.MX 8DualXLite
Abstract The MCIMX8DXL-WEVK board provides a comprehensive platform for design and evaluation of
most commonly used features of the NXP i.MX 8DXL applications processor

NXP Semiconductors MCIMX8DXL-WEVKUM
MCIMX8DXL-WEVK Board User Manual
1 Overview
The MCIMX8DXL-WEVK board provides a comprehensive platform for design and evaluation of most
commonly used features of the NXP i.MX 8DXL applications processor, in a small and low-cost package.
The MCIMX8DXL-WEVK board is an entry-level development board to familiarize you with the processor,
before you invest a large amount of resources in more specific designs. The board is lead-free and RoHS-
compliant.
For information on how to set up and boot the board, see i.MX 8DXL Evaluation Kit Quick Start Guide, which is
available in the MCIMX8DXL-WEVK board kit. To run the preloaded image, the board DIP switch SW1 must be
set to make the board boot from processor internal eFuse (default setting). For more details, see Section 1.10.
This document provides detailed information about the MCIMX8DXL-WEVK board interfaces, power supplies,
clocks, connectors, jumpers, push buttons, DIP switch, and LEDs.
1.1 Acronyms
The table below lists the acronyms used in this document.
Acronym Meaning
ACM Audio clock mux
ADC Analog-to-digital converter
BCU Board Control Utilities
BSP Board support package
CAN Controller Area Network
CC Configuration channel
DFP Downstream-Facing Port
DIP Dual in-line package
DRP Dual-Role Power
EEPROM Electrically erasable programmable read-only memory
eMMC Embedded Multimedia Card
ESD Electrostatic discharge
FlexCAN Flexible Controller Area Network
FlexSPI Flexible Serial Peripheral Interface
I2C Inter-Integrated Circuit
IC Integrated circuit
I2S Inter-IC Sound
JTAG Joint Test Action Group
LCD Liquid Crystal Display
LCDIF Liquid Crystal Display Interface
LDO Low-dropout regulator
LED Light-emitting diode
LPDDR4 Low-Power Double Data Rate Gen4
Table 1. Acronyms
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Acronym Meaning
MII Media-Independent Interface
MPSSE Multi-protocol synchronous serial engine
MT/s Megatransfers per second
OS Operating system
OTG On-The-Go
PMIC Power management integrated circuit
PMT Power Measurement Tool
QSPI Quad Serial Peripheral Interface
RGMII Reduced Gigabit Media-Independent Interface
RTC Real-time clock
SAI Serial Audio Interface
SCU System controller unit
SD Secure digital
SDRAM Synchronous dynamic random-access memory
SPI Serial Peripheral Interface
TFT Thin film transistor
UART Universal Asynchronous Receiver/Transmitter
UFP Upstream-Facing Port
USDHC Ultra Secured Digital Host Controller
USB Universal Serial Bus
V2X Vehicle-to-everything
WLAN Wireless local-area network
Table 1. Acronyms...continued
1.2 Related documentation
The table below lists and explains the additional documents and resources that you can refer to for more
information on the board. Some of the documents listed below may be available only under a non-disclosure
agreement (NDA). To request access to these documents, contact your local field applications engineer (FAE)
or sales representative.
Documents Description Link / how to obtain
i.MX 8DXL Evaluation Kit Quick
Start Guide
Provides information on how to set up and boot
the MCIMX8DXL-WEVK board
Available in the MCIMX8DXL-
WEVK board kit
i.MX 8DualXLite/8SoloXLite
Applications Processor Reference
Manual
Intended for system software and hardware
developers and applications programmers who
want to develop products with this device
i.MX 8XLite Automotive and
Infotainment Applications
Processors Data Sheet
Provides information about electrical
characteristics, hardware design considerations,
and ordering information
Contact NXP FAE / sales
representative
Table 2. Related documentation
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Documents Description Link / how to obtain
i.MX 8XLite Industrial Applications
Processors Data Sheet
i.MX 8QM / i.MX 8QXP / i.MX
8DXL Hardware Developer’s
Guide
This purpose of this document is to help hardware
engineers design and test their i.MX 8QM/8
QXP/8DXL processor-based designs. It provides
information about board layout recommendations
and design checklists to ensure first-pass
success and avoid board bring-up problems.
i.MX 8DXL Errata Mask set errata to mask 0P23B
MCIMX8DXL-WEVK design files Board schematics, assembly layout
i.MX Linux User's Guide This document describes how to build and install
the i.MX Linux OS BSP (where BSP stands for
board support package) on the i.MX platform.
It also covers special i.MX features and how to
use them. The document also provides the steps
to run the i.MX platform, including board DIP
switch settings, and instructions on configuring
and using the U-Boot boot loader.
Table 2. Related documentation...continued
1.3 Kit contents
The table below lists the items included in the MCIMX8DXL-WEVK hardware kit.
Item Description
Board MCIMX8DXL-WEVK
AC power cord IEC cable assembly with locking system for IEC C14 inlet, US version, 1.83 m
SD card 16 GB SD card
Power supply 12 V AC/DC, 11.5 A, level VI power supply, with 4-pin DIN output type
Worldwide adapter Hardware accessory, universal adapter
Wi-Fi card Wi-Fi card with Wi-Fi 6, 802.11 a/b/g/n, Bluetooth 5.2 BR/EDR/LE, SDIO 3.0
interface, SDR104 at 208 MHz, NXP 88W9098 chip
Fastner/screw Fastner, screw M2.5x4 machine PHP SS
USB Type-C cable USB 3.0 Type-C male to Type-A male cable assembly for serial download
1.4 Block diagram
The figure below shows the MCIMX8DXL-WEVK block diagram.
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Figure 1. MCIMX8DXL-WEVK block diagram
1.5 Board features
The table below lists the features of the MCIMX8DXL-WEVK board.
Board feature Processor feature used Description
Processor NXP i.MX 8DualXLite processor (PIMX8DL1AVNFZAB), with two Arm
Cortex-A35 cores each running at 1.2 GHz and one Arm Cortex-M4F
core running at 264 MHz frequency.
Note: For details on MIMX8UD7DVP10SA, see i.MX 8DualXLite/8Solo
XLite Applications Processor Reference Manual.
LPDDR4 DDR controller and PHY 1 GB LPDDR4 SDRAM with 16-bit data bus and 4.266 Gbit/s data rate
Octal flash Two FlexSPI controllers,
QSPI0A and QSPI0B
512 Mbit octal SPI NOR flash memory with maximum frequency 200
MHz and operating voltage 1.8 V
eMMC USDHC0 controller 32 GB NAND flash eMMC memory with 8-bit data bus
SD card USDHC1 controller SD card connector
V2X/Ethernet ENET0, USDHC1, USDHC2,
SPI2, and SNVS_TAMPER
controllers
V2X/Ethernet socket for adding a V2X/Ethernet extension board
Gigabit Ethernet ENET1 controller An RGMII Ethernet PHY terminating at an RJ45 Gigabit Ethernet
(10/100/1000 Mbit/s) connector
USB USB_OTG1 and USB_OTG2
controllers
USB_OTG1 controller is connected to a USB 3.2 Gen 2 Type-C
connector. USB_OTG2 controller is connected to another USB 3.2 Gen
2 Type-C connector or M.2 connector.
Table 3. MCIMX8DXL-WEVK features
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Board feature Processor feature used Description
CAN FlexCAN1 and FlexCAN2
controllers
A high-speed dual CAN transceiver terminating at two DB9 female CAN
connectors
UART UART0 and UART1
controllers
UART0 controller is connected to the debug USB host via a USB
to UART/MPSSE bridge. UART1 controller is connected to UART1
connector and M.2 connector (software-controlled).
SPI SPI2 and SPI3 controllers SPI2 controller is connected to a V2X/Ethernet socket. SPI3 controller is
connected to SPI3 connector (software-controlled).
LCD LCDIF controller LCD connector with a TFT touch screen module
SAI SAI0, SAI1, SAI2, and SAI3
controllers
SAI0 controller is connected to M.2 connector. Each of the SAI1, SAI2,
and SAI3 controllers is connected to an audio codec terminating at an
audio jack.
M.2 USB_OTG1, SAI0, UART1,
PCIE0, PCIE_IOB controllers
M.2 Key-E mini card connector
I/O expander Five input/output expanders for remote I/O expansion via the I2C-bus
interface
I2C I2C2, I2C3, and PMIC_I2C
controllers
I2C2, I2C3, and PMIC_I2C buses for processor; FTB bus for debug
USB host (via USB to UART/MPSSE bridge)
Board control and
debug
A USB to UART/MPSSE bridge (connected to host computer through
a USB micro-B connector), DIP switch, and JTAG header for board
control and debug
Power The board gets powered from external 12 V DC supply through a DIN
connector. It has a PMIC device for managing board power. It provides
six power monitors for power and energy measurement.
Clock Six crystal oscillators and one two-output PCIe clock generator
Table 3. MCIMX8DXL-WEVK features...continued
1.6 Board pictures
The figure below shows the top-side view of the MCIMX8DXL-WEVK board, with connectors highlighted.
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J18
(JTAG)
J12
(Audio jack 1)
J13
(Audio jack 2)
J14
(Audio jack 3) J9
(LCD)
J1
(Power jack)
J19 (Debug USB)
J8 (Gigabit Ethernet)
J20 (Tamper)
J7 (V2X / Ethernet)
J2 (Fan)
J3 (CAN1)
J11 (SPI3)
J4 (CAN2)
J10 (UART1)
J17 (M.2)
J15 (USB OTG2)
J46 (USB OTG1)
Figure 2. MCIMX8DXL-WEVK connectors (top-side view)
The figure below shows the bottom-side view of the MCIMX8DXL-WEVK board, with one connector highlighted.
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J6 (SD)
Figure 3. MCIMX8DXL-WEVK connectors (bottom-side view)
The figure below shows the board jumpers highlighted.
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J51
J50
J23
J21
J49
J22
J45
J27
J25
J42
J28
J34
J30
J31
J35
J48
J33
J24 J32 J29 J37
J26
J44
J36
J39
J38
J47
J5
Figure 4. MCIMX8DXL-WEVK jumpers
The figure below shows the push buttons, DIP switch, and LEDs of the board highlighted.
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D14 (100 Mbit)
SW2 (Reset)
SW1 (DIP)
D38 (Orientation)
D29 (LED1)
D30 (LED2)
SW3 (Power)
D3 (Power OFF)
D2 (Power)
Figure 5. MCIMX8DXL-WEVK push buttons, DIP switch, and LEDs
1.7 Connectors
The table below describes the connectors of the MCIMX8DXL-WEVK board. The connectors are shown in
Figure 2 and Figure 3.
Part identifier PCB label Connector type Description Reference section
J1 12V DC IN 4-pin DIN connector DC power jack Section 2.2
J6 SD CARD SD card receptacle SD card slot Section 2.7
J7 V2X/ENET0
MODULE
2x30-pin connector V2X/Ethernet socket Section 2.8
J8 ENET1 RJ45 connector Gigabit Ethernet connector Section 2.9
J46 USB_OTG1 USB OTG1 connector
J15 USB_OTG2
USB 3.2 Gen 2 Type-C
connector USB OTG2 connector
Section 2.10
J3 CAN1 CAN1 connector
J4 CAN2
DB9 female connector
CAN2 connector
Section 2.11
J10 UART1 5-position receptacle UART1 connector Section 2.12
J11 SPI3 5-position receptacle SPI3 connector Section 2.13
J9 LCD 40-pin connector LCD connector Section 2.14
J12 SAI1 5-pin audio jack Input/output jack for audio codec 1 Section 2.15
Table 4. MCIMX8DXL-WEVK connectors
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Part identifier PCB label Connector type Description Reference section
J13 SAI2 Input/output jack for audio codec 2
J14 SAI3 Input/output jack for audio codec 3
J17 WIFI/BT
MODULE
75-pin M.2 connector M.2 Key-E mini card connector Section 2.16
J19 USB_DEBUG USB 2.0 micro-B
connector
Debug USB connector Section 2.19.3
J18 JTAG 2x5-pin header JTAG header Section 2.19.4
J2 FAN 1x3-pin header Fan header with lock
J20 TAMPER 1x3-pin header Allows remote tamper detection of
the processor
For more information
on these connectors,
see MCIMX8DXL-
WEVK schematics
Table 4. MCIMX8DXL-WEVK connectors...continued
1.8 Jumpers
The table below describes the jumpers of the MCIMX8DXL-WEVK board. The jumpers are shown in Figure 4.
Part identifier PCB label Jumper type Description Reference section
J22 I-5V0 1x2-pin header 5V0 supply current measurement
disable jumper:
•Open (default setting): 5V0
supply current is measured by
onboard power monitor U11
•Shorted: Current measurement
is disabled for 5V0 supply
J23 I-3V3_USB 1x2-pin header 3V3_USB supply current
measurement disable jumper:
•Open (default setting):
3V3_USB supply current is
measured by onboard power
monitor U11
•Shorted: Current measurement
is disabled for 3V3_USB supply
J25 I-3V3_IO 1x2-pin header 3V3_IO supply current
measurement disable jumper:
•Open (default setting): 3V3_IO
supply current is measured by
onboard power monitor U11
•Shorted: Current measurement
is disabled for 3V3_IO supply
J27 I-3V3_ENET0 1x2-pin header VDD_ENET0_VSEL- supply
current measurement disable
jumper:
•Open (default setting): VDD_
ENET0_VSEL- supply current
is measured by onboard power
monitor U11
Section 2.2.1
Table 5. MCIMX8DXL-WEVK jumpers
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Part identifier PCB label Jumper type Description Reference section
•Shorted: Current measurement
is disabled for VDD_ENET0_
VSEL- supply
J24 I-VDD_ANA 1x2-pin header VDD_ANA supply current
measurement disable jumper:
•Open: VDD_ANA supply current
is measured by onboard power
monitor U12
•Shorted (default setting):
Current measurement is
disabled for VDD_ANA supply
J26 I-DDR_VDD1 1x2-pin header DDR_VDD1 supply current
measurement disable jumper:
•Open (default setting): DDR_
VDD1 supply current is
measured by onboard power
monitor U12
•Shorted: Current measurement
is disabled for DDR_VDD1
supply
J28 I-1V8_1 1x2-pin header 1V8_1 supply current
measurement disable jumper:
•Open (default setting): 1V8_1
supply current is measured by
onboard power monitor U12
•Shorted: Current measurement
is disabled for 1V8_1 supply
J29 I-1V8_2 1x2-pin header 1V8_2 supply current
measurement disable jumper:
•Open (default setting): 1V8_2
supply current is measured by
onboard power monitor U12
•Shorted: Current measurement
is disabled for 1V8_2 supply
J30 I-3V3_PMIC 1x2-pin header 3V3_PMIC supply current
measurement disable jumper:
•Open (default setting): 3
V3_PMIC supply current is
measured by onboard power
monitor U14
•Shorted: Current measurement
is disabled for 3V3_PMIC
supply
J31 I-3V3 1x2-pin header 3V3 supply current measurement
disable jumper:
•Open (default setting): 3V3
supply current is measured by
onboard power monitor U14
•Shorted: Current measurement
is disabled for 3V3 supply
Table 5. MCIMX8DXL-WEVK jumpers...continued
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Part identifier PCB label Jumper type Description Reference section
J34 I-VDD_SNVS_4P2 1x2-pin header VDD_SNVS1 supply current
measurement disable jumper:
•Open (default setting): VDD_
SNVS1 supply current is
measured by onboard power
monitor U14
•Shorted: Current measurement
is disabled for VDD_SNVS1
supply
J36 I-VDD_MAIN 1x2-pin header VDD_MAIN supply current
measurement disable jumper:
•Open: VDD_MAIN supply
current is measured by onboard
power monitor U14
•Shorted (default setting):
Current measurement is
disabled for VDD_MAIN supply
J32 I-1V8_3 1x2-pin header 1V8_3 supply current
measurement disable jumper:
•Open (default setting): 1V8_3
supply current is measured by
onboard power monitor U15
•Shorted: Current measurement
is disabled for 1V8_3 supply
J33 I-1V8_4 1x2-pin header 1V8_4 supply current
measurement disable jumper:
•Open (default setting): 1V8_4
supply current is measured by
onboard power monitor U15
•Shorted: Current measurement
is disabled for 1V8_4 supply
J35 I-1V8_5 1x2-pin header 1V8_5 supply current
measurement disable jumper:
•Open (default setting): 1V8_5
supply current is measured by
onboard power monitor U15
•Shorted: Current measurement
is disabled for 1V8_5 supply
J37 I-1V8 1x2-pin header 1V8 supply current measurement
disable jumper:
•Open (default setting): 1V8
supply current is measured by
onboard power monitor U15
•Shorted: Current measurement
is disabled for 1V8 supply
J38 I-1V8_6 1x2-pin header 1V8_6 supply current
measurement disable jumper:
•Open (default setting): 1V8_6
supply current is measured by
onboard power monitor U18
Table 5. MCIMX8DXL-WEVK jumpers...continued
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Part identifier PCB label Jumper type Description Reference section
•Shorted: Current measurement
is disabled for 1V8_6 supply
J50 I-VDD_ANA1 1x2-pin header Processor VDD_ANA1_1
P8 power domain current
measurement disable jumper:
•Open (default setting):
Processor VDD_ANA1_1
P8 power domain current is
measured by onboard power
monitor U18
•Shorted: Current measurement
is disabled for VDD_ANA1_1P8
power domain of the processor
J48 I-VDD_EMMC0 1x2-pin header Processor VDD_EMMC0_1
P8_3P3 power domain current
measurement disable jumper:
•Open: Processor VDD_
EMMC0_1P8_3P3 power
domain current is measured by
onboard power monitor U18
•Shorted (default setting):
Current measurement is
disabled for VDD_EMMC0_1
P8_3P3 power domain of the
processor
J47 I-12V 1x2-pin header 12V0 supply current measurement
disable jumper:
•Open (default setting): 12V0
supply current is measured by
onboard power monitor U18
•Shorted: Current measurement
is disabled for 12V0 supply
J39 I-VDD_MEMC 1x2-pin header VDD_MEMC supply current
measurement disable jumper:
•Open: VDD_MEMC supply
current is measured by onboard
power monitor U19
•Shorted (default setting):
Current measurement is
disabled for VDD_MEMC supply
J42 I-VDD_DDR_VDDQ 1x2-pin header VDD_DDR_VDDQ supply current
measurement disable jumper:
•Open: VDD_DDR_VDDQ
supply current is measured by
onboard power monitor U19
•Shorted (default setting):
Current measurement is
disabled for VDD_DDR_VDDQ
supply
J44 I-DDR_VDD2 1x2-pin header DDR_VDD2 supply current
measurement disable jumper:
Table 5. MCIMX8DXL-WEVK jumpers...continued
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Part identifier PCB label Jumper type Description Reference section
•Open: DDR_VDD2 supply
current is measured by onboard
power monitor U19
•Shorted (default setting):
Current measurement is
disabled for DDR_VDD2 supply
J45 I-VDD_ENET0 1x2-pin header VDD_ENET0 supply current
measurement disable jumper:
•Open: VDD_ENET0 supply
current is measured by onboard
power monitor U19
•Shorted (default setting):
Current measurement is
disabled for VDD_ENET0
supply
J21 VDD_ANA0_SEL 1x3-pin header Processor VDD_ANA0_1P8
source power supply selection
jumper:
•Pins 1-2 shorted (default
setting): Processor analog
supply VDD_ANA0_1P8 gets
powered from VDD_ANA supply
•Pins 2-3 shorted: VDD_ANA0_
1P8 gets powered from 1V8_1
supply
J49 VDD_ANA1_SEL 1x3-pin header Processor VDD_ANA1_1P8
source power supply selection
jumper:
•Pins 1-2 shorted (default
setting): Processor analog
supply VDD_ANA1_1P8 gets
powered from VDD_ANA supply
•Pins 2-3 shorted: VDD_ANA1_
1P8 gets powered from 1V8_1
supply
J51 VDD_MII_SEL 1x3-pin header MDC/MDIO voltage selection
jumper:
•1-2 shorted (default setting):
Use this jumper setting if
module connected to V2X/
ENET0 socket uses 3.3 V for
MDC/MDIO signal pair
•2-3 shorted: Use this jumper
setting if the connected module
provides MDC/MDIO voltage
J5 PWR_TEST 1x2-pin header Force enable onboard power
supplies jumper:
•Open (default setting): If the
processor was installed with
correct orientation during
assembly, then onboard power
supplies are enabled during
For more information
on these jumpers,
see MCIMX8DXL-
WEVK schematics
Table 5. MCIMX8DXL-WEVK jumpers...continued
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Part identifier PCB label Jumper type Description Reference section
power-on; otherwise, onboard
power supplies are disabled
during power-on
•Shorted: Onboard power
supplies are enabled during
power-on, irrespective of
processor orientation. This
jumper setting allows to test
onboard power supplies before
installing the processor during
board manufacturing.
CAUTION: Do not short jumper
J5 if the processor is installed on
the board. Shorting this jumper
with processor installed may
cause unrecoverable damage to
the processor.
Table 5. MCIMX8DXL-WEVK jumpers...continued
1.9 Push buttons
The table below describes the push buttons of the MCIMX8DXL-WEVK board. The push buttons are shown in
Figure 5.
Part identifier PCB label Button name Description
SW2 RESET Reset button Pressing this button resets the system and begins a boot
sequence
SW3 PWR_ON_OFF Power ON/OFF button To turn ON power, press and hold this button for 0.5
seconds. To turn OFF power, press and hold the button
for 5 seconds.
Table 6. MCIMX8DXL-WEVK push buttons
1.10 DIP switch
The MCIMX8DXL-WEVK board has a dual inline package (DIP) switch SW1, which has a set of four switches:
SW1[1:4].
SW1[1:3] are used for selecting boot mode and they are connected to the i.MX 8DXL processor pins
SCU_BOOT_MODE[0:2], respectively.
SW1[4] is used for controlling system ID memory write protection and it is connected to the debug USB host
through the I2C-bus interface of the USB to UART/MPSSE bridge.
For each switch within the DIP switch:
•"OFF" setting corresponds to 0
•"ON" setting corresponds to 1
The table below describes the DIP switch settings. The DIP switch is shown in Figure 5.
Switches Supported function Description
SW1[1:3] Boot mode selection SW1[3:1] (SW_BOOT_MODE[2:0]):
•000: Processor internal eFuse (default setting)
Table 7. DIP switch settings
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Switches Supported function Description
•001: USB serial download (processor can download a
program image from a USB connection)
•010: EMMC0
•011: USDHC1: SD card
•100: NAND, 128 pages
•101: Reserved
•110: FlexSPI
•111: Reserved
SW1[4] System ID memory write protection control •0: Both read and write operations are allowed into system
ID memory U104 (default setting)
•1: System ID memory is write-protected, only read
operation is allowed
Table 7. DIP switch settings...continued
Note: For more details on i.MX 8DXL boot modes and boot mode configuration, see "System Boot" chapter of
i.MX 8DualXLite/8SoloXLite Applications Processor Reference Manual.
1.11 LEDs
The MCIMX8DXL-WEVK board provides six light-emitting diodes (LEDs) for monitoring system functions, such
as power-on, reset, and board faults. The information collected from LEDs can be used for debugging purposes.
The table below describes the MCIMX8DXL-WEVK LEDs. The LEDs are shown in Figure 5.
Part identifier PCB label LED color Associated
function
Description (when LED is ON)
D2 PWR Green Board power ON
status
Board is powered ON
D3 PWR_OFF Red Board power OFF
status
Board is powered OFF
D38 CHECK_
ORIENT
Red Processor
orientation error
The processor is rotated by 90°, 180°, or 270°
from pin 1 orientation. To protect the processor,
board and processor power supplies have been
shut down.
D14 100Mb Red 100 Mbit/s
Ethernet link
connection error
100 Mbit/s Ethernet link connection is active from
RGMII PHY transceiver; 1000 Mbit/s (1 Gbit/s)
Ethernet link connection is disabled
D29 LED1 Green User LED 1
D30 LED2 Green User LED 2
Table 8. MCIMX8DXL-WEVK LEDs
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2 Functional description
This section describes the features and functions of the MCIMX8DXL-WEVK board.
Note: For details of the i.MX 8DXL processor features, see i.MX 8DualXLite/8SoloXLite Applications Processor
Reference Manual.
2.1 Processor
The i.MX 8DualXLite (8DXL) applications processor is a member of the i.MX 8 family. This series of applications
processors is focused on offering powerful solutions and multiple possibilities of development on projects with
advanced graphics and safety-critical applications. More specifically, the i.MX 8DXL is a device that targets the
automotive and industrial market segments and offers the possibility of a wide variety of embedded applications.
The chip has a flexible architecture allowing both high performance and low power consumption. It features
two Arm Cortex-A35 cores, in addition to one Arm Cortex-M4F general-purpose core. The device includes V2X
capabilities, as well as TSN networking and telematics.
For more information about the i.MX 8DXL processor, see the i.MX 8DualXLite/8SoloXLite Applications
Processor Reference Manual and i.MX 8XLite Automotive and Infotainment Applications Processors Data
Sheet.
2.2 Power supply
The MCIMX8DXL-WEVK board has the following primary power supplies:
•External 12 V DC power supply through 4-pin DIN connector J1
•External 5 V DC power supply through USB micro-B connector J19
These primary power supplies are used to produce secondary power supplies on the board to power the board
components, including the i.MX 8DXL processor, power regulators, clock generator, LPDDR4 memory, octal
flash memory, eMMC memory, V2X/Ethernet socket, Gigabit Ethernet PHY, CAN transceiver, LCD connector,
audio codecs, M.2 connector, USB to UART/MPSSE bridge, JTAG header, DIP switch, and LEDs.
The figure below shows the MCIMX8DXL-WEVK power supply diagram.
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Figure 6. Power supply diagram
The table below describes the MCIMX8DXL-WEVK power supplies.
Power source Manufacturer and
part number
Power supply Description
External 12 V DC
supply through 4-pin
DIN connector J1
12V0 (12 V) •Supplies power to i.MX 8DXL processor, fan header
J2, and power regulator U1
•Alternative 12 V power for V2X/Ethernet socket
SW1: 5V0_PS (5 V) •Supplies LDO2 power to PMIC
•Produces 5V0 supply
Power regulator U1 NXP MFS5600
AMMA7ES
SW2: 3V3_PS (3.3
V)
•Supplies power to LEDs (D2 and D3), MUX13
(U102), PMIC loopback switches (U130 and U131),
and power switches (U10, U13, U16, and U17)
•Produces 3V3_PMIC supply
•Produces 3V3_SW supply
From 5V0_PS
supply
5V0 (5 V) •Supplies power to LCD connector (J9) and
programmable-current USB switches (U62 and U65)
•Supplies 5 V power to CAN transceiver, V2X/
Ethernet socket, and audio codecs 1, 2, and 3
From 3V3_PS
supply
3V3_PMIC (3.3 V) Supplies SW1, SW2, SW3, SW4, SW5, LDO1, and
VIN power to PMIC
From 3V3_PS
supply through
power switch U4
3V3_SW (3.3 V) •Supplies 3.3 V power to MUX8 U39
•Produces 3V3 supply
•Produces 3V3_USB supply
Table 9. MCIMX8DXL-WEVK power supplies
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Power source Manufacturer and
part number
Power supply Description
•Produces 3V3_IO supply
•One of the source power supplies for VDD_ENET0_
VSEL+ supply
•One of the source power supplies for VDD_ENET0_
VSEL- supply
From 3V3_SW
supply
3V3 (3.3 V) •Supplies power to M.2 connector, EXPANDER1
(U80), EXPANDER2 (U84), EXPANDER3 (U82),
EXPANDER4 (U110), MUX1 (U44), MUX2 (U50),
MUX3 (U49), MUX4 (U52), MUX5 (U46 and U47),
MUX6 (U67), MUX7 (U34), MUX9 (U26, U29, and
U31), MUX11 (U86), SWITCH1 (U75), SWITCH2
(U76), voltage translators (U21, U30, U35, U36,
U40, U45, U48, U51, U55, U68, and U74), inverter
ICs (U38, U73, U112, U128, U136, and U137), logic
gates (U72, U77, U78, U79, U81, U83, U113, and
U116), configuration channel logic chips (U114 and
U117), differential 2:1 switches (U70 and U71),
power switch (U32), and 2:1 switch (U134)
•Supplies 3.3 V power to eMMC memory, CAN
transceiver, Gigabit Ethernet PHY, V2X/Ethernet
socket, and audio codecs 1, 2, and 3
•3V3 supply is filtered to produce AVDD33 power for
Gigabit Ethernet PHY
•3V3 supply is filtered to produce VBUS power for
programmable-current USB switches U62 and U65
From 3V3_SW
supply
3V3_USB (3.3 V) Supplies 3.3 V power to i.MX 8DXL USB
From 3V3_SW
supply
3V3_IO (3.3 V) Supplies 3.3 V power to i.MX 8DXL ENET0, uSDHC,
SPI1, and PCIe
From pin 57 of V2X/
ENET0 socket (J7)
VCC_ENET_IO (3.
3/1.8 V)
•Supplies power to voltage translators U35, U36,
U37, and U40
•Supplies 3.3/1.8 V power to MUX8 U39
•Another source power supply for VDD_ENET0_
VSEL+ supply
•Alternative power supply for voltage translator U30
From 3V3_SW
supply or VCC_
ENET_IO supply
VDD_ENET0_VSEL
+ (3.3/1.8 V)
Another source power supply for VDD_ENET0_VSEL-
supply
From 3V3_SW
supply or VDD_
ENET0_VSEL+
supply
VDD_ENET0_VSEL-
(3.3/1.8 V)
•Supplies power to logic gates U118, U119, and U120
•Supplies another 3.3 V power to i.MX 8DXL ENET0
SW1: PMIC_VDD_
MAIN (1 V at 2.5 A)
Produces VDD_MAIN supplyPower management
integrated circuit
(PMIC) U5
NXP PPF7100
BVMA1ES
SW2: PMIC_VDD_
MEMC (1.1 V at 2.5
A)
Produces VDD_MEMC supply
Table 9. MCIMX8DXL-WEVK power supplies...continued
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