NXP Semiconductors MCX-N5 EVK Series User manual

UM12019
MCX-N5XX-EVK Board User Manual
Rev. 1 — 20 January 2024 User manual
Document information
Information Content
Keywords MCX-N5XX-EVK, UM12019, MCX N54x
Abstract The NXP MCX N5XX Evaluation Kit (MCX-N5XX-EVK) board is a full-featured evaluation and
development board for application prototyping and demonstration of the MCX N54x family of
devices. This document describes the hardware for the MCX-N5XX-EVK development board.

NXP Semiconductors UM12019
MCX-N5XX-EVK Board User Manual
1 MCX-N5XX-EVK overview
The NXP MCX N5XX Evaluation Kit (MCX-N5XX-EVK) board is a full-featured evaluation and development
board for application prototyping and demonstration of the MCX N54X family of devices.
The MCX N54X integrates a dual Arm Cortex-M33 MCU and a neural processing unit (NPU) into a single
package. NXP supports MCX N54X with tools and software that include hardware evaluation boards, software
development IDE, example applications, and drivers.
The MCX-N5XX-EVK development board consists of the MCX N54X device with a 64-Mbit external serial flash
(provided by Winbond), FXLS8964AF accelerometer, P3T1755DP I3C temperature sensor, visible light sensor,
Ethernet PHY, SDHC circuit, Audio codec circuit, EMVSIM connector, general-purpose RGB LED, touch slider,
FS and HS USB circuits, general-purpose push buttons, and onboard MCU-Link debug probe circuit with energy
monitoring. The board is compatible with the Arduino and FRDM ecosystem shield modules and Mikroe click
boards.
The onboard MCU-Link debug probe is based on the LPC55S69 MCU. Before using the MCU-Link functionality,
ensure that it is programmed with the required firmware. For details, see Section 3.5.
The board is a standalone PCB and supports application development with the NXP SDK software package.
Note:
•The MCX N54X represents the MCXN547 and MCXN546 devices in this document.
•For simplicity, the MCU-Link debug probe is referred to as "MCU-Link" and the MCX N54X MCU is referred to
as "target MCU" in this document.
1.1 Block diagram
Figure 1 shows the MCX-N5XX-EVK block diagram.
MCXN547VDFT
Figure 1. MCX-N5XX-EVK block diagram
UM12019 All information provided in this document is subject to legal disclaimers. © 2024 NXP B.V. All rights reserved.
User manual Rev. 1 — 20 January 2024
2 / 56

NXP Semiconductors UM12019
MCX-N5XX-EVK Board User Manual
1.2 Board features
Table 1 describes the features of the MCX-N5XX-EVK board.
Board feature Target MCU features used Description
MCX N54X MCU
(target MCU)
The MCX N54X is based on dual high-performance Arm
Cortex-M33 cores running up to 150 MHz, with 2 MB of
Flash with optional full ECC RAM, a DSP coprocessor and
an integrated proprietary neural processing unit (NPU).
For details, see the MCX Nx4X Reference Manual.
Power supply •P5V0 (5 V) input power supply using one of the following
power sources:
–MCU-Link USB micro-B connector (default source)
–Full-speed (FS) micro USB connector
–High-speed (HS) micro USB connector
–Arduino Shield compatible header
–5 V regulator populated at 3-pin jumper
•A 10-pin jumper (J26) is used for the 5 V power source
selection
•PCA9420 PMIC for flexible voltage selections
•Jumpers for different power sources selection
Clock Two crystal oscillators for:
•24 MHz system reference clock
•32.768 kHz real-time clock (RTC)
USB USB full-speed (FS) and high-speed
(HS) modules
•One USB Micro-AB connector interfaced with USB HS
host / device mode module
•One USB Micro-AB connector interfaced with USB FS
host / device mode module
Flash memory FlexSPI controller One 1.8 V 64-Mbit (8 MB) serial flash memory with dual and
quad SPI
3D Accelerometer Low-power inter-integrated circuit
(LPI2C) module
Supports NXP FXLS8964AF accelerometer for motion
sensing
Audio SAI1 controller •One Audio codec (DA7212)
•Two digital microphones (SPK0641HT4H-1)
•One Auxiliary input port and one headset output port
•One 14-pin header for external DMIC connection
EMVSIM EMVSIM0 module One EMVSIM connector for smart card
Temperature sensor Improved inter-integrated circuit (I3C) Supports NXP P3T1755DP temperature sensor
Ethernet Ethernet controller (ENET0) 10 / 100 Mbit/s (RMII) LAN8741 Ethernet PHY and RJ45
connector
I/O headers Headers compatible with:
•Arduino shields
•Mikroe click boards
Light sensor ADC One ambient light sensor, consisting of a phototransistor in a
miniature SMD
Wi-Fi / Bluetooth
interface
SDIO, I2S, UART, I2C, and GPIO •One M.2 Key E mini card 75-pin connector supporting
SDIO, I2S, UART, I2C, and Vendor-defined SPI interfaces
•Compatible with Murata IW416 Wi-Fi card module
Table 1. MCX-N5XX-EVK features
UM12019 All information provided in this document is subject to legal disclaimers. © 2024 NXP B.V. All rights reserved.
User manual Rev. 1 — 20 January 2024
3 / 56

NXP Semiconductors UM12019
MCX-N5XX-EVK Board User Manual
Board feature Target MCU features used Description
Mass storage uSDHC MicroSD card connector
Touch slider Touch sensing input (TSI) One Touch Slider for touch sensing detection; connects to
TSI input channels through the P1_10 and P1_12 pins
Debug •Onboard MCU-Link debug probe with CMSIS-DAP and
SEGGER J-Link protocol options. It can connect to the
target MCU through a USB-to-UART, USB-to-SPI, or USB-
to-I2C bridge.
•10-pin Arm JTAG/SWD connector for connecting an
external debug probe
PCB 6” 3/4 x 4” 5/16 x 1/16”
Orderable part
number
MCX-N5XX-EVK
Table 1. MCX-N5XX-EVK features...continued
1.3 Board kit contents
The MCX-N5XX-EVK board kit contains the following items:
•MCX-N5XX-EVK board hardware assembly
•A 3 ft micro-USB A to micro-USB B cable
•Nylon screws (4-40 x ¼”)
•Nylon standoffs (4-40 x 1.25, 3/16 Hex)
1.4 Board pictures
Figure 2 shows the top view of MCX-N5XX-EVK.
UM12019 All information provided in this document is subject to legal disclaimers. © 2024 NXP B.V. All rights reserved.
User manual Rev. 1 — 20 January 2024
4 / 56

NXP Semiconductors UM12019
MCX-N5XX-EVK Board User Manual
MCX N54X
processor
Figure 2. MCX-N5XX-EVK top view
Figure 3 shows the top-side view of the MCX-N5XX-EVK board, with connectors, push buttons, and LEDs
highlighted.
UM12019 All information provided in this document is subject to legal disclaimers. © 2024 NXP B.V. All rights reserved.
User manual Rev. 1 — 20 January 2024
5 / 56

NXP Semiconductors UM12019
MCX-N5XX-EVK Board User Manual
J21
(PMIC
controller)
J5
(MCU-Link USB)
J11
(Debug and trace)
J27
(HS USB)
J28
(FS USB)
J13
(MCU-Link
GPIO header)
J14
(DMIC EXP.)
J25
(SDHC)
J9
(External Flash)
J2 J1
(Arduino)
J3 J4
(Arduino)
J19
(MikroBUS)
J22
(MikroBUS)
J20
(FlexIO)
J12
(M.2)
J15 (MCU-Link
SWD)
J8
(10 / 100 Mbit/s RJ45)
E1
(Touch slider)
SW1
(MCX N9
Reset)
SW6
(MCU-Link
Reset)
SW3
(NMI)
SW3
(ISP)
SW4
(Wakeup)
SW5
(PMIC RST)
D22
(RGB LED)
D25
D24
D7
D21
D13 D14 D8 D12 D10 D11 D9
MCU-Link
LEDs
J17 J18
(DNP) J10
(EMV SIM)
Figure 3. MCX-N5XX-EVK connectors, push buttons, and LEDs (top-side view)
Figure 4 shows the jumpers of the MCX-N5XX-EVK board.
UM12019 All information provided in this document is subject to legal disclaimers. © 2024 NXP B.V. All rights reserved.
User manual Rev. 1 — 20 January 2024
6 / 56

NXP Semiconductors UM12019
MCX-N5XX-EVK Board User Manual
J26 JP43
JP44
JP46
JP41
JP48
J24
JP4
JP28
JP30
JP34
JP39
JP45
JP17
JP21
JP25
JP26
JP29
JP32 JP33
JP40
JP27
JP35
JP31
JP36JP37
JP47
JP42
JP13
JP15
JP14
JP18
JP16
JP20
JP1
JP3
JP6
JP5
JP9
JP10
JP11 JP12
J23 (DNP) JP49
JP19
JP38
JP2 (DNP)
JP7 JP8
JP22
JP24
JP23
Figure 4. MCX-N5XX-EVK jumpers
1.5 Connectors
Table 2 describes the MCX-N5XX-EVK connectors. The connectors are shown in Figure 3.
Part
identifier
Connector type Description Reference section
BT1 Coincell battery holder Holder for 3 V CR2025 or CR 2032 lithium
coincell battery required for PMIC Battery
backup (VBAT_BKUP)
Note: This holder is at the bottom of the board
underneath the MCU RST button (SW1).
J24 1 x 2 pin header Lithium-ion/external battery connector
For more information on this
connector, see MCX-N5XX-
EVK schematics
J1 2 x 8 pin header
J2 2 x 10 pin header
J3 2 x 8 pin header
J4 2 x 6 pin header
Arduino compatible I/O header Section 2.13
J5 USB connector MCU-Link USB connector Section 3.7
Table 2. MCX-N5XX-EVK connectors
UM12019 All information provided in this document is subject to legal disclaimers. © 2024 NXP B.V. All rights reserved.
User manual Rev. 1 — 20 January 2024
7 / 56

NXP Semiconductors UM12019
MCX-N5XX-EVK Board User Manual
Part
identifier
Connector type Description Reference section
J8 RJ45 connector Shielded RJ45 connector jack with magnetic
built-in
Section 2.6
J9 (DNP) 2 x 14 pin header To connect external flash daughter card Section 2.5
J10 FMS006-2610-0 connector EMVSIM connector to connect smart card Section 2.12
J11 2 x 10 pin header Debug (JTAG / SWD) and trace connector to
connect an external debug probe or external
debug target
Section 3.8
J12 75-pin connector M.2 Key E module connector Section 2.11
J13 1 x 6 pin header MCU-Link GPIO header Section 3.12
J14 2 x 7 pin header External DMIC connector Section 2.7
J15 (DNP) 2 x 5 pin header MCU-Link SWD connector For more information on this
connector, see MCX-N5XX-
EVK schematics
J16 1 x 1 header To monitor CLKOUT clock output on P0_6 For more information on this
connector, see MCX-N5XX-
EVK schematics
J17 (DNP) 1 x 1 header To monitor I3C1_SDA on P1_16 for debugging
the I3C circuit
For more information on this
connector, see MCX-N5XX-
EVK schematics
J18 (DNP) 1 x 1 header To monitor I3C1_SCL on P1_17 for debugging
the I3C circuit
For more information on this
connector, see MCX-N5XX-
EVK schematics
J19 1 x 8 position receptacles mikroBUS socket connectors Section 2.15
J20 2 x 14 pin header FlexIO header for LCD screen connection Section 2.14
J21 1 x 6 pin header To connect a PMIC controller for regulating
PMIC (U2) regulator outputs
For more information on this
connector, see MCX-N5XX-
EVK schematics
J22 1 x 8 position receptacles mikroBUS socket connectors Section 2.15
J25 SDHC connector To connect an external SD card Section 2.4
J27 USB micro-AB connector USB1 high-speed connector Section 2.3
J28 USB micro-AB connector USB0 full-speed connector Section 2.3
J29 (DNP) 1 x 4 pin header Connects to the CAN bus and allows external
connection with the bus
FlexCAN interface
JP42 2 x 3 pin header Used for tamper different mode test Section 2.16
Table 2. MCX-N5XX-EVK connectors...continued
1.6 Jumpers
Table 3 describes the MCX-N5XX-EVK jumpers. The jumpers are shown in Figure 4.
Part identifier Jumper type Description Reference section
J26 2 x 5 pin header P5V0 input power selection Section 2.1
Table 3. MCX-N5XX-EVK jumpers
UM12019 All information provided in this document is subject to legal disclaimers. © 2024 NXP B.V. All rights reserved.
User manual Rev. 1 — 20 January 2024
8 / 56

NXP Semiconductors UM12019
MCX-N5XX-EVK Board User Manual
Part identifier Jumper type Description Reference section
•Pin 1-2 shorted (default setting): P5V_MCU_
LINK_USB supply from MCU-Link USB micro-B
connector (J5)
•Pin 3-4 shorted: P5V_HDR_IN from 5 V regulator
populated at 3-pin jumper (J23)
•Pin 7-8 shorted: VREG_IN_USB1 supply from HS
micro USB connector (J27)
•Pin 9-10 shorted: VREG_IN_USB0 supply from
FS micro USB connector (J28)
JP4 1 x 2 pin header •Pin 1-2 open: Disconnects the P3V3 supply from
the LAN8741 Ethernet PHY circuit
•Pin 1-2 shorted (default setting): Connects
the P3V3 supply to the VDD analog pins of the
LAN8741 Ethernet PHY
Section 2.6
JP5 1 x 2 pin header •Open (default setting): Enables the onboard
MCU-Link USBSIO bridge feature for SPI
•Shorted: Sends a low signal on HW_VER_2 to
disable the onboard MCU-Link USBSIO bridge
feature for SPI
Section 3.9
JP6 1 x 2 pin header •Open (default setting): Enables the MCU-Link
SWD feature
•Shorted: Sends a low signal on HW_VER_7 to
disable the onboard MCU-Link SWD feature
Note: This configuration is required to enable
target MCU debug through an external debug
probe.
Section 3.3
JP9 1 x 2 pin header •Open (default setting): No JTAG connection
•Shorted: Connects TDI signal to P0_3 port for
JTAG connection
For more information
on this jumper, see
MCX-N5XX-EVK
schematic
JP12 1 x 3 pin header Target power selection jumper
•1-2 shorted (default setting): Onboard target
MCU is used as a debug target or an external
target MCU is used as a debug target but it uses
board power
•2-3 shorted: An external target MCU is used as a
debug target and it uses its own power
Section 3.3
JP13 1 x 3 pin header •Pin 1-2 shorted (default setting): Port P1 pin 21
(P1_21) connects to DA7212 audio codec through
dual-supply translating transceiver NTS0302
•Pin 2-3 shorted: Port P1 pin 21 connects to the
MDIO interface of the LAN8741 Ethernet PHY
For more information
on this jumper, see
MCX-N5XX-EVK
schematic
JP14 1 x 2 pin header Pin 1-2 shorted (default setting): VDD_MCU is
sourced from MCU_PWR supply
For more information
on this jumper, see
MCX-N5XX-EVK
schematic
JP15 (DNP) 1 x 3 pin header •Pin 1-2 shorted: VDD_P3 is sourced from the
P3V3 power supply
•Pin 2-3 shorted (default setting): VDD_P3 is
sourced from P1V8 supply
Section 2.1.1
Table 3. MCX-N5XX-EVK jumpers...continued
UM12019 All information provided in this document is subject to legal disclaimers. © 2024 NXP B.V. All rights reserved.
User manual Rev. 1 — 20 January 2024
9 / 56

NXP Semiconductors UM12019
MCX-N5XX-EVK Board User Manual
Part identifier Jumper type Description Reference section
Note: VDD_P3 must be 1.8 V for QSPI flash and
SIM card interfaces.
JP17 1 x 3 pin header •Pin 1-2 shorted (default setting): Port P0 pin 11
(P0_11) connects to SD connector power switch
•Pin 2-3 shorted: Port P0 pin 11 connects to the
VBUS controller (NX5P3090UK) of USB FS
Section 2.4
JP18 1 x 3 pin header •Pin 1-2 shorted: VDD_LDO_CORE_IN is sourced
from MCU_PWR power supply
•Pin 2-3 shorted (default setting): VDD_LDO_
CORE_IN is sourced from VDD_CORE supply
Note: Default setting for LDO_CORE disable case.
Section 2.1.1
JP19 1 x 2 pin header •Open (default setting): Enables serial port
connection (VCOM) between MCU-Link and the
target MCU (connected through pins P1_8 and
P1_9)
•Shorted: Sends a low signal on HW_VER_6 to
disable serial port connection (VCOM) available
between the MCU-Link LPC55S69 and the MCX
N54X MCU
Section 3.8
JP21 1 x 3 pin header •Pin 1-2 shorted (default setting): Port P1 pin 11
(P1_11) connects to P3T1755DP temperature
sensor if jumper JP23 is shorted
•Pin 2-3 shorted: Port P1 pin 11 (P1_11) connects
to the FlexIO header
For more information
on this jumper, see
MCX-N5XX-EVK
schematic
JP22 1 x 2 pin header MCU-Link debug probe target selection jumper:
•Open (default setting): The MCU-Link debug
probe or an external debug probe can be
connected to the onboard target MCU. Use this
setting when the target MCU operates in Normal
mode (its SWD interface is enabled).
•Shorted: The MCU-Link debug probe can be
connected to an external target MCU. Use this
setting when using the MCU-Link debug probe for
debugging an external target MCU.
Section 3.3
JP23 1 x 2 pin header •Open (default setting): To disable external pull-
up resistance on the I3C SDA
•Shorted: To enable external pull-up resistance on
I3C SDA
Section 2.9
JP24 1 x 2 pin jumper MCU-Link (LPC55S69) force ISP mode jumper:
•Open (default setting): MCU-Link follows the
normal boot sequence (MCU-Link boots from
internal flash if a boot image is found). With the
internal flash erased, the MCU-Link normal boot
sequence falls through to ISP boot mode.
•Shorted: MCU-Link is forced to ISP mode
(USB). Use this setting to reprogram the MCU-
Link internal flash with a new image or use the
MCUXpresso IDE with CMSIS-DAP protocol.
Note: By default, MCU-Link flash is
preprogrammed with a version of CMSIS-DAP
firmware.
Section 3.5
Table 3. MCX-N5XX-EVK jumpers...continued
UM12019 All information provided in this document is subject to legal disclaimers. © 2024 NXP B.V. All rights reserved.
User manual Rev. 1 — 20 January 2024
10 / 56

NXP Semiconductors UM12019
MCX-N5XX-EVK Board User Manual
Part identifier Jumper type Description Reference section
JP25 1 x 2 pin header USB-to-I2C bridge enable/disable jumper
•Open: The USB-to-I2C bridge between MCU-Link
and the target MCU is disabled
•Shorted (default setting): MCU-Link is connected
to the target MCU through a USB-to-I2C bridge
Section 3.9
JP26 1 x 2 pin header Pin 1-2 shorted (default setting): VDD_BRD is
sourced from MCU_PWR_SRC supply
For more information
on this jumper, see
MCX-N5XX-EVK
schematic
JP27 2 x 3 pin header •Pin 1-2 shorted (default setting): VDD_DCDC is
sourced from the MCU_PWR power supply
•Pin 3-4 shorted: VDD_DCDC is pulled down to
GND
•Pin 5-6 shorted: VDD_DCDC is pulled down to
GND
Note: In DC-DC bypass mode, open pin 1-2 and
short pins 3-4 and 5-6.
Section 2.1.1
JP28 1 x 2 pin header •Pin 1-2 open (default setting): Voltage reference
output (VREFO) does not connect to Pin 16 of
Arduino connector J1
•Pin 1-2 shorted: VREFO connects to Pin 16 of
Arduino connector J1
Section 2.13
JP30 1 x 2 pin header Pin 1-2 shorted (default setting): VREFH is
sourced from VDDA supply
For more information
on this jumper, see
MCX-N5XX-EVK
schematic
JP31 1 x 2 pin header Pin 1-2 shorted (default setting): VDD_SYS is
sourced from VDD_LDO_SYS_IN supply
Note: This is shorted in LDO_BYPASS mode.
Section 2.1.1
JP29
JP32
JP33
1 x 2 pin header MCU-LINK current measurement circuit jumpers.
Pins 1-2 shorted (default setting)
Section 3.10
JP34 1 x 2 pin header •Pin 1-2 open: No input voltage to ambient light
sensor
•Pin 1-2 shorted (default setting): Input voltage
VDDA connects to ambient light sensor
Section 2.10
JP35 1 x 2 pin header Pin 1-2 shorted (default setting): VDD_CORE is
sourced from the DCDC_VDDCORE power supply
Note: VDD_CORE is powered by DC-DC, LDO_
core is disabled.
Section 2.1.1
JP36 1 x 3 pin header •Pin 1-2 shorted (default setting): VDD_LDO_
SYS_IN is sourced from MCU_PWR power supply
•Pin 2-3 shorted: VDD_LDO_SYS_IN supply is
sourced from P1V8 supply
Section 2.1.1
JP37 1 x 3 pin header •Pin 1-2 shorted (default setting): VDD_BAT is
sourced from the MCU_PWR power supply
•Pin 2-3 shorted: VDD_BAT is sourced from PMIC
LDO1_OUT supply
Section 2.1.1
Table 3. MCX-N5XX-EVK jumpers...continued
UM12019 All information provided in this document is subject to legal disclaimers. © 2024 NXP B.V. All rights reserved.
User manual Rev. 1 — 20 January 2024
11 / 56

NXP Semiconductors UM12019
MCX-N5XX-EVK Board User Manual
Part identifier Jumper type Description Reference section
JP38 1 x 3 pin header MCU-LINK current measurement circuit jumper
•Pin 1-2 shorted (default setting): MCU_PWR and
MCU_PWR_SRC is sourced from P3V3 supply
•Pin 2-3 shorted: MCU_PWR and MCU_PWR_
SRC is sourced from P1V8 supply
Section 3.10
JP39 1 x 2 pin header Pin 1-2 shorted (default setting): VDDA is sourced
from VDD_P4 supply
For more information
on this jumper, see
MCX-N5XX-EVK
schematic
JP40 1 x 2 pin header Pin 1-2 shorted (default setting): VDD_USB is
sourced from the P3V3 power supply
For more information
on this jumper, see
MCX-N5XX-EVK
schematic
JP43 1 x 3 pin header PMIC reset
•Pin 1-2 shorted (default setting): PMIC reset is
supported through the SW5 push button
•Pin 2-3 shorted: PMIC reset is supported through
the SW1 (MCU reset) button
Section 2.1
JP44 1 x 3 pin header P3V3 source selection
•Pin 1-2 shorted (default setting): ADM7172 LDO
is selected for P3V3 output
•Pin 2-3 shorted: PCA9420 PMIC LDO2 is selected
for P3V3 output
Section 2.1
JP45 2 x 3 pin header •Pin 1-2 shorted (default setting): VDD_P4 is
sourced from a P3V3 power supply
•Pin 2-3 shorted: VDD_P4 is sourced from P1V8
supply
Note: If VDD_P4 is sourced from P3V3 while
MCU_PWR is sourced by P1V8, P3V3 MUST be
sourced from PMIC LDO2_OUT.
Section 2.1.1
JP46, JP41 1 x 2 pin header P1V8 source selection
•JP46 pin 1-2 shorted (default setting): PCA9420
PMIC SW2 is selected for P1V8 output
•JP41 pin 1-2 shorted: PCA9420 PMIC LDO1 is
selected for P1V8 output
Section 2.1
JP47 1 x 3 pin header •Pin 1-2 shorted (default setting): VDD_P2 is
sourced from a P3V3 power supply
•Pin 2-3 shorted: VDD_P2 is sourced from P1V8
supply
Note: If VDD_P2 is sourced from P3V3 while
MCU_PWR is sourced by P1V8, P3V3 MUST be
sourced from PMIC LDO2_OUT.
Section 2.1.1
JP48 1 x 2 pin header P1V1 output
•Pin 1-2 shorted (default setting): PCA9420 PMIC
SW1 is selected for P1V1 output
Section 2.1
JP49 1 x 2 pin header ISP mode enable/disable
•Open (default setting): Normal operation
•Shorted: ISP mode
Section 1.7
Table 3. MCX-N5XX-EVK jumpers...continued
UM12019 All information provided in this document is subject to legal disclaimers. © 2024 NXP B.V. All rights reserved.
User manual Rev. 1 — 20 January 2024
12 / 56

NXP Semiconductors UM12019
MCX-N5XX-EVK Board User Manual
Part identifier Jumper type Description Reference section
JP50 1 x 2 pin header Ethernet PHY clock input selection
•Pin 1-2 open: Enables crystal oscillator (Y7) to
output 50 MHz clock to Ethernet PHY (LAN8741)
•Pin 1-2 shorted (default setting): Disables the
crystal oscillator (Y7) and allows the target MCU
to provide a 50 MHz reference clock to Ethernet
PHY (LAN8741) through P1_4/ENET0_TXCLK
Section 2.6
JP51 1 x 2 pin header Controls the enabling/disabling of the USB power
switch (U26)
•Open: Disconnects pull-up resistor from P0_11/
USB0_ID
•Shorted (default setting): Connects pull-up
resistor to P0_11/USB0_ID for enabling USB FS
mode in case P0_11 is used for another function
Section 2.3
JP7 1 x 3 pin header •Pin 1-2 shorted (default setting): Clock signal of
DMIC (U30) connects to audio codec (U31)
•Pin 2-3 shorted: Clock signal of DMIC (U30)
connects to the MCX N54X MCU through P0_16/
PDM0_CLK-DMIC
Section 2.7
JP8 1 x 3 pin header •Pin 1-2 shorted (default setting): Data signal of
DMIC (U30) connects to audio codec (U31)
•Pin 2-3 shorted: Data signal of DMIC (U30)
connects to the MCX N54X MCU through P0_17/
PDM0_DATA0-DMIC
Section 2.7
JP10 1 x 3 pin header •Pin 1-2 shorted (default setting): Clock signal of
DMIC (U32) connects to audio codec (U31)
•Pin 2-3 shorted: Clock signal of DMIC (U32)
connects to the MCX N54X MCU through P0_16/
PDM0_CLK-DMIC
Section 2.7
JP11 1 x 3 pin header •Pin 1-2 shorted (default setting): Data signal of
DMIC (U32) connects to audio codec (U31)
•Pin 2-3 shorted: Data signal of DMIC (U32)
connects to the MCX N54X MCU through P0_17/
PDM0_DATA0-DMIC
Section 2.7
JP16 1 x 3 pin header •Pin 1-2 shorted (default setting): Connects P3_
17/SAI1_TX_FS with WCLK pin of audio codec
(U31)
•Pin 2-3 shorted: Connects P3_19/SAI1_RX_FS
with WCLK pin of audio codec (U31)
Section 2.7
JP20 1 x 3 pin header •Pin 1-2 shorted (default setting): Connects P3_
16/SAI1_TX_BCLK with BCLK pin of audio codec
(U31)
•Pin 2-3 shorted: Connects P3_18/SAI1_RX_BCLK
with BCLK pin of audio codec (U31)
Section 2.7
JP1 1 x 3 pin header •Pin 1-2 shorted (default setting): Headphone
output Left / Right / GND_SENSE / MIC input
•Pin 2-3 shorted: Headphone output Left / Right /
MIC input /GND_SENSE
Section 2.7
JP3 1 x 3 pin header •Pin 1-2 shorted (default setting): Headphone
output Left / Right / GND_SENSE / MIC input
Section 2.7
Table 3. MCX-N5XX-EVK jumpers...continued
UM12019 All information provided in this document is subject to legal disclaimers. © 2024 NXP B.V. All rights reserved.
User manual Rev. 1 — 20 January 2024
13 / 56

NXP Semiconductors UM12019
MCX-N5XX-EVK Board User Manual
Part identifier Jumper type Description Reference section
•Pin 2-3 shorted: Headphone output Left / Right /
MIC input /GND_SENSE
Table 3. MCX-N5XX-EVK jumpers...continued
1.7 Push buttons
Tactile buttons are populated on the MCX-N5XX-EVK board for human machine interaction (HMI). Each of the
SW[4:2] buttons has a 0.1 µF bypass capacitor for debouncing and pads for external pull-up resistors, if desired.
Table 4 describes the MCX-N5XX-EVK push buttons. The push buttons are shown in Figure 3.
Part identifier Switch name Description
SW1 Reset button (MCX N54X RST) Pressing SW1 resets the target MCU that causes board
peripherals to reset to their default states and execute the
boot code. When SW1 is pressed, the reset LED D21 turns
ON.
SW2 Non-maskable interrupt (NMI) button SW2 is designated as the MCX N54X NMI pin (however, the
MCX architecture allows for any of the pins to operate as the
NMI pin). It also acts as a general-purpose input.
SW3 In-system programming (ISP) mode
switch
SW3 is an ISP mode switch (it is a white-colored push
button for easy identification) and can also act as a general-
purpose input. It is shared with the clock output (clkout)
header, J16.
Note: The bypass capacitor, C150, affects the clock output
(clkout) performance. To use the clock output function, the
C150 capacitor must be removed.
Note: Apart from the SW3 button, ISP mode can also be
enabled or disabled through the JP49 jumper. For details,
see Section 1.6.
SW4 Wakeup button SW4 is a general-purpose input as well as a low-power
wake up unit (WUU) pin. This allows for demonstration of
Power Down and Deep Power Down applications that use a
push button wakeup.
SW5 PMIC reset Pressing this button resets the PCA9420 PMIC if pins 1-2
are shorted (default configuration) for the JP43 jumper.
SW6 MCU-Link reset Pressing this button resets the MCU-Link processor (LPC55
S69).
Table 4. MCX-N5XX-EVK push buttons
Figure 5 shows the circuit diagrams of the MCX-N5XX-EVK push buttons.
UM12019 All information provided in this document is subject to legal disclaimers. © 2024 NXP B.V. All rights reserved.
User manual Rev. 1 — 20 January 2024
14 / 56

NXP Semiconductors UM12019
MCX-N5XX-EVK Board User Manual
Figure 5. Push button circuit diagram
1.8 LEDs
Table 5 describes the MCX-N5XX-EVK light-emitting diodes (LEDs) that correspond to the target MCU. The
board also has some MCU-Link-specific LEDs, which are described in Section 3.11. The LEDs are shown in
Figure 3.
Part
identifier
LED color LED name / function Description
D22 Red/green/blue RGB LED User application LEDs. Each of these LEDs can be controlled
through a user application.
D24 RED Wi-Fi LED Indicates WLAN status of IW416 Wi-Fi/Bluetooth module
D25 RED Bluetooth LED Indicates Bluetooth status of IW416 Wi-Fi/Bluetooth module
D7 Green 5 V PWR ON Indicates 5 V system power on status. When the board is
powered up, D7 turns ON.
D21 Red Reset LED Indicates system reset activity. When board reset is initiated,
for example, by pressing the SW1 reset button, the D21 LED
turns ON.
Table 5. MCX-N5XX-EVK LEDs
Figure 6 shows the circuit diagram of the RGB LEDs described in Table 5.
Figure 6. RGB LED circuit diagram
UM12019 All information provided in this document is subject to legal disclaimers. © 2024 NXP B.V. All rights reserved.
User manual Rev. 1 — 20 January 2024
15 / 56

NXP Semiconductors UM12019
MCX-N5XX-EVK Board User Manual
The RGB LEDs are powered by the P3V3 rail. These LEDs are controlled by transistors, Q8 and Q9, which
allow the LEDs to operate while being controlled by GPIOs that are powered at a voltage less than P3V3.
2 MCX-N5XX-EVK functional description
This section describes the features and functions of the MCX-N5XX-EVK board. You can use the functionality
described in this section as a reference while designing your own target board.
Note: For more details on the MCX N5XX MCU, see MCX N94x, N54x Product Family Data Sheet and MCX-
Nx4x Reference Manual.
2.1 Power supplies
The MCX-N5XX-EVK board is powered with a P5V0 (5 V) power supply using one of the following source
options:
•VREG_IN_USB0 supply from full-speed (FS) USB connector (J28)
•VREG_IN_USB1 supply from high-speed (HS) USB connector (J27)
•P5V_HDR_IN supply from 5 V regulator populated at 3-pin jumper (J23) (Not populated by default)
•P5V0 supply from Arduino Shield compatible header, J3 (pin 10)
•P5V_MCU_LINK_USB supply from MCU-Link USB micro-B connector (J5)
The P5V0 supply is an input power supply for the onboard PCA9420 PMIC (U2) and ADM172 3.3 V regulator
(U54), which provides secondary power supplies. The P5V0 supply also powers up the energy monitoring
analog circuits, FS / HS USB VBUS controllers, and CAN driver.
Many power supplies in the MCX-N5XX-EVK board are connected through jumpers, which can be used to
configure their respective power supplies. This configuration includes enabling/disabling a power supply and
changing the input power source for a power supply.
5 V power sources and selection
The following table describes the 5 V input power sources and their output power supplies.
Part identifier Device / power source Output power supply Description
J5 MCU-Link USB micro-B
connector
P5V_MCU_LINK_USB •One of the sources of P5V0 (5 V) supply
(default option)
•USB regulator input power supply for MCU-
Link microcontroller LPC55S69
J28 FS USB connector VREG_IN_USB0 One of the sources for the P5V0 (5 V) supply
J27 HS USB connector VREG_IN_USB1 One of the sources for the P5V0 (5 V) supply
J23 5 V power regulator
populated at J23
P5V_HDR_IN One of the sources for the P5V0 (5 V) supply
J3 (pin 10) Arduino shield
compatible header
P5V0 •Power supply for:
–Onboard PCA9420 PMIC (U2)
–ADM172 3.3 V regulator (U54)
–mikroBUS connector (J22)
–HS and FS USB connectors power
switches (U24 and U26)
–FlexCAN transceiver TJA1057 (U39)
•Power source for:
–P5VA analog power supply
Table 6. 5 V power sources
UM12019 All information provided in this document is subject to legal disclaimers. © 2024 NXP B.V. All rights reserved.
User manual Rev. 1 — 20 January 2024
16 / 56

NXP Semiconductors UM12019
MCX-N5XX-EVK Board User Manual
A 10-pin jumper (J26) is provided on the board to make the 5 V power source selection. By default, the jumper
is set to select a 5 V supply from the MCU-Link USB micro-B connector (J5). For the J26 jumper details, see
Section 1.6. The D7 LED indicates that the 5 V power is available on the board. For the D7 LED details, see
Section 1.8.
Section 2.1 shows the 5 V power selection on the MCX-N5XX-EVK board.
Figure 7. MCX-N5XX-EVK 5 V power source selection
3.3 V power sources and selection
The following table describes the 3.3 V input power sources and their output power supplies.
Part identifier Device / power source Output power supply Description
U2 PCA9420BSAZ (NXP
Semiconductors)
LDO2_OUT: 3.3 V One of the sources for the P3V3 supply
U54 ADM7172 regulator
(Analog Devices)
ADM7172_VOUT: 3.3 V One of the sources for the P3V3 supply
(default option)
- LDO2_OUT through
JP44
P3V3
- ADM7172_VOUT
through JP44
P3V3
J3 (pin 8) Arduino shield
compatible header
P3V3
•Power supply for:
–EMV SIM load switch (U48)
–SD card load switch (U56)
–Ethernet transceiver LAN8741 (U37)
through JP4 jumper
–Dual supply translating transceivers
NTB0102 (U52), NTB0101 (U51)
–mikroBUS connector (J19)
–Flex IO header (J20)
–M.2 Key E card connector (J12)
–Crystal oscillator (Y5)
–RGB LED
•One of the sources for the VDD_P2 supply
through the JP47 jumper. For details, see
Section 1.6
•One of the sources for the VDD_P3 supply
through the JP15 jumper. For details, see
Section 1.6
Table 7. P3V3 power sources
UM12019 All information provided in this document is subject to legal disclaimers. © 2024 NXP B.V. All rights reserved.
User manual Rev. 1 — 20 January 2024
17 / 56

NXP Semiconductors UM12019
MCX-N5XX-EVK Board User Manual
Part identifier Device / power source Output power supply Description
•One of the sources for the VDD_P4 supply
through the JP45 jumper. For details, see
Section 1.6
•One of the sources for the VDD_USB supply
through the JP40 jumper. For details, see
Section 1.6
•One of the power sources for VDD_AUDIO
•Power source for the MCU_PWR_SRC
supply through the JP38 jumper. For details,
see Section 1.6
•Power source for the VDD_AUDIO power
supply if the R937 resistor is populated (DNP
by default)
Table 7. P3V3 power sources...continued
The 3.3 V power source for the board is selected by jumper JP44. By default, the ADM172 regulator (U54)
output is selected. For the JP44 jumper details, see Section 1.6. Figure 8 shows the P3V3 power selection on
the MCX-N5XX-EVK board.
Figure 8. P3V3 source selection
1.8 V power sources and selection
The following table describes the 1.8 V input power sources and their output power supplies.
Part identifier Device / power source Output power supply Description
LDO1_OUT: 1.8 V One of the sources for the P1V8 supplyU2 PCA9420BSAZ (NXP
Semiconductors) SW2_OUT: 1.8 V One of the sources for the P1V8 supply
(default option)
- LDO1_OUT through
JP46 and JP41
- SW2_OUT through
JP46 and JP41
P1V8 •Power supply for:
–Audio codec DA7212 (U31)
–EMV SIM load switch (U48) (Not a default
option)
•One of the sources for the VDD_LDO_SYS_
IN supply through the JP36 jumper. For
details, see Section 1.6
•One of the sources for the VDD_P2 supply
through the JP47 jumper. For details, see
Section 1.6
•Default supply source for the VDD_P3 supply
through the JP15 jumper. For details, see
Section 1.6
•One of the sources for the VDD_P4 supply
through the JP45 jumper. For details, see
Section 1.6
Table 8. P1V8 power sources
UM12019 All information provided in this document is subject to legal disclaimers. © 2024 NXP B.V. All rights reserved.
User manual Rev. 1 — 20 January 2024
18 / 56

NXP Semiconductors UM12019
MCX-N5XX-EVK Board User Manual
Part identifier Device / power source Output power supply Description
•One of the power sources for VDD_AUDIO
•Power source for the MCU_PWR_SRC
supply through the JP38 jumper. For details,
see Section 1.6
•Power source for the VDD_AUDIO power
supply through the R357 resistor
Table 8. P1V8 power sources...continued
The 1.8 V power source for the board is selected by jumpers JP46 and JP41. By default, SW2_OUT is selected.
For the JP46 and JP41 jumpers details, see Section 1.6. Figure 9 shows the P1V8 power selection on the MCX-
N5XX-EVK board.
Figure 9. P1V8 source selection
1.1 V power sources and selection
The following table describes the 1.1 V input power sources and their output power supplies.
Part identifier Device / power source Output power supply Description
U2 PCA9420BSAZ (NXP
Semiconductors)
SW1_OUT Source for the P1V1 supply (default option)
- SW1_OUT through
JP48 jumper
P1V1 Used to demonstrate the 1.2 V GPIO capability
of P2 / P3 port.
Table 9. P1V1 power sources
The P1V1 power source for the board is selected by jumper JP48. By default, SW1_OUT is selected. For the
JP48 jumper details, see Section 1.6. Figure 10 shows the P1V1 power selection on the MCX-N5XX-EVK
board.
UM12019 All information provided in this document is subject to legal disclaimers. © 2024 NXP B.V. All rights reserved.
User manual Rev. 1 — 20 January 2024
19 / 56

NXP Semiconductors UM12019
MCX-N5XX-EVK Board User Manual
Figure 10. P1V1 source selection
The MCX-N5XX-EVK board supports current measurement for board power supplies through the onboard
MCU-Link debug probe. For more details, see Section 3.10.
Once the main power configurations are set, the target MCU power configurations must be made. The
MCU power is configured by a network of jumpers as shown in Figure 11. These jumpers provide easy
reconfiguration of the power scheme for evaluation in a customer application. They provide access to insert
ammeters in all the supplies connecting to the MCX N54X device. Also, these jumpers provide a means of
connecting external supplies to any of the MCX power pins.
Note: If external supplies are used to power any of the MCX power pins, care must taken to ensure that the
power sequencing requirements outlined in the device data sheet are met.
UM12019 All information provided in this document is subject to legal disclaimers. © 2024 NXP B.V. All rights reserved.
User manual Rev. 1 — 20 January 2024
20 / 56