NXP Semiconductors FRDM-MCXN947 Manuel utilisateur

UM12018

FRDM-MCXN947 Board User Manual

Rev. 1 — 20 January 2024 User manual

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Information Content

Keywords FRDM-MCXN947, UM12018, MCXN947

Abstract The NXP FRDM-MCXN947 board is a low-cost design and evaluation board based on MCXN947

device. This document describes the hardware for the FRDM-MCXN947 board.

NXP Semiconductors UM12018

FRDM-MCXN947 Board User Manual

1 FRDM-MCXN947 overview

The NXP FRDM-MCXN947 board is a low-cost design and evaluation board based on the MCXN947 device.

The MCXN947 device integrates a dual Arm Cortex-M33 microcontroller and a neural processing unit (NPU)

into a single package. NXP supports the MCXN947 device with tools and software that include hardware

evaluation boards, software development IDE, example applications, and drivers.

The FRDM-MCXN947 board consists of one MCXN947 device with a 64 Mbit external serial flash (provided

by Winbond). The board also features P3T1755DP I3C temperature sensor, TJA1057GTK/3Z CAN PHY,

Ethernet PHY, SDHC circuit (card slot is DNP), RGB LED, touch pad, high-speed USB circuit, push buttons, and

MCU-Link debug probe circuit. The board is compatible with the Arduino shield modules, Pmod boards, and

mikroBUS. The board also supports a camera module and NXP lost-cost LCD module PAR-LCD-S035.

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.

1.1 Block diagram

Figure 1 shows the FRDM-MCXN947 board block diagram.

Figure 1. FRDM-MCXN947 block diagram

1.2 Board features

Table 1 describes the features of the FRDM-MCXN947 board.

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FRDM-MCXN947 Board User Manual

Board feature Target MCU features used Description

MCXN947 MCU

(target MCU)

The MCXN947 MCU is based on dual high-performance

Arm Cortex-M33 cores running up to 150 MHz, with 2 MB of

Flash with configurable 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:

–High-speed USB2.0 Type-C connector

–5 V regulator populated at 3-pin jumper

–Arduino Shield compatible header

–MCU-Link USB2.0 Type-C connector

•One LDO for 3.3 V power supply

•Jumpers and resistors configuration for different power

supplies

Clock Crystal oscillators for:

•24 MHz system reference clock

•32.768 kHz real-time clock (RTC)

•50 MHz Ethernet PHY clock input

•16 MHz clock input for MCU-Link

USB High-speed (HS) USB module One USB Type-C connector interfaced with high-speed USB

controller and PHY module

Flash memory FlexSPI controller Supports either of the following two options:

•Winbond W25Q64JVSSIQ - 64 Mbit QSPI flash memory

(populated)

•Micron MT35XL512ABA1G12 - 512 Mbit Octal flash

memory (DNP)

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 (outer rows) and FRDM header (inner

rows)

•Mikroe click boards

•Camera module

•LCD module

•Peripheral module (Pmod)

CAN FlexCAN controller One TJA1057GTK/3Z CAN PHY and one 4-pin CAN FD

connector

Mass storage µSDHC MicroSD card connector (DNP by default)

Touch pad Touch sensing input (TSI) One Touch Slider for touch sensing detection; connects to

the TSI input channel through the P1_3 pin

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

Table 1. FRDM-MCXN947 features

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FRDM-MCXN947 Board User Manual

Board feature Target MCU features used Description

PCB 118 mm x 55 mm

Orderable part

number

FRDM-MCXN947

Table 1. FRDM-MCXN947 features...continued

1.3 Board kit contents

The FRDM-MCXN947 board kit contains the following items:

•FRDM-MCXN947 board hardware assembly

•A 3 ft micro USB Type A to USB Type C cable

1.4 Board pictures

Figure 2 shows the top view of FRDM-MCXN947.

Target MCU MCXN947

MCU-Link LPC55S69

Figure 2. FRDM-MCXN947 top view

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Figure 3 shows the top-side view of the FRDM-MCXN947 board, with connectors, push buttons, and LEDs

highlighted.

J17

MCU-Link5 USB

J16

MCX 10/100

Ethernet

connector

J11

MCX HS USB

FlexIO / LCD

connector

Camera connector

PMOD connector

Arduino

compatible

header (outer row) /

FRDM header (inner

row)

Arduino

compatible

header (outer row) /

FRDM header (inner

row)

Arduino

compatible

header (outer row) /

FRDM header (inner

row)

Arduino

compatible

header (outer row) /

FRDM header (inner

row)

mikroBUS header

J23

MCX SWD

SW1

Reset

MCX RST

LED

SW2

Wakeup

SW3

ISP

J10

CAN

header

D5 LED

RGB LED

Figure 3. FRDM-MCXN947 connectors, push buttons, and LEDs (top-side view)

Figure 4 shows the jumpers on the FRDM-MCXN947 board.

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J18

J19

J15 (DNP)

J24

J26 J25 J27 J28

(DNP)

J22 J21

Figure 4. FRDM-MCXN947 jumpers

1.5 Connectors

Table 2 describes the FRDM-MCXN947 connectors. The connectors are shown in Figure 3.

Part

identifier

Connector type Description Reference section

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 (outer rows) and

FRDM header (inner rows)

Section 2.9

J5 1 x 8 position receptacles mikroBUS socket connector Section 2.11

J6 1 x 8 position receptacles mikroBUS socket connector Section 2.11

J7 2 x 6 header (DNP) Pmod connector Section 2.13

J8 2 x 14 pin header FlexIO header for LCD screen connection Section 2.10

J9 2 x 16 pin header Used for connecting a camera Section 2.12

J10 2 x 2 pin header Connects to the CAN bus and allows external

connection with the bus

Section 2.5

J11 USB Type-C connector USB1 high-speed connector Section 2.3

J12 SDHC connector (DNP) To connect an external SD card Section 2.7

Table 2. FRDM-MCXN947 connectors

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Part

identifier

Connector type Description Reference section

J16 RJ45 connector Shielded RJ45 connector jack with magnetic

built-in

Section 2.4

J17 USB connector MCU-Link USB connector Section 3.7

J23 2 x 5 pin header Debug (JTAG / SWD) connector to connect an

external debug probe or external debug target

Section 3.8

Table 2. FRDM-MCXN947 connectors...continued

1.6 Jumpers

Table 3 describes the FRDM-MCXN947 jumpers. The jumpers are shown in Figure 4.

Part

identifier

Jumper type Description Reference section

J18 1x2 pin header •Open (default setting): MCU-Link VCOM port is enabled.

•Shorted: Sends a low signal on LPC_HW_VER_6 to

disable MCU-Link VCOM port

Section 3.8

J19 1x2 pin header •Open (default setting): Enables the MCU-Link SWD

feature

•Shorted: Sends a low signal on LPC_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

J21 1x2 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 the CMSIS-

DAP protocol.

Note: By default, MCU-Link flash is preprogrammed with a

version of CMSIS-DAP firmware.

Section 3.5

J22 1x2 pin jumper MCU-Link SWD clock enable jumper:

•Open: MCU-Link SWD clock is disabled.

•Shorted (default setting): MCU-Link SWD clock is

enabled.

For more information

on this jumper, see

the FRDM-MCXN947

schematic

J24 1x2 pin header Pin 1-2 shorted (default setting): P3V3_MCU is sourced

from the P3V3 power supply

Section 2.1.1

J25 (DNP) 1x2 pin jumper DNP by default.

If shorted, VDD_IO_USB is powered by P3V3_MCU through

the jumper.

Note: BY default, VDD_IO_USB is powered from the P3

V3_MCU supply through a zero-ohm shunt resistor.

Section 2.1.1

J26 (DNP) 1x2 pin jumper DNP by default. Section 2.1.1

Table 3. FRDM-MCXN947 jumpers

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Part

identifier

Jumper type Description Reference section

If shorted, VDD_ANA is powered by P3V3_MCU through the

jumper.

Note: BY default, VDD_ANA is powered from the P3V3_

MCU supply through a zero-ohm shunt resistor.

J27 (DNP) 1x2 pin jumper DNP by default.

If shorted, VDD_BAT is powered by P3V3_MCU through the

jumper.

Note: BY default, VDD_BAT is powered from the P3V3_

MCU supply through a zero-ohm shunt resistor.

Section 2.1.1

J28 (DNP) 1x2 pin jumper DNP by default.

If shorted, VDD_CORE_SYS is powered by P3V3_MCU

through the jumper.

Note: BY default, VDD_CORE_SYS is powered from the

P3V3_MCU supply through a zero-ohm shunt resistor.

Section 2.1.1

Table 3. FRDM-MCXN947 jumpers...continued

1.7 Push buttons

Tactile buttons are populated on the FRDM-MCXN947 board for human machine interaction (HMI). Each of the

SW[1:3] buttons has a 0.1 µF bypass capacitor for debouncing and pads for external pull-up resistors.

Table 4 describes the FRDM-MCXN947 push buttons. The push buttons are shown in Figure 3.

Part identifier Switch name Description

SW1 Reset button (MCXN947 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 D1 turns ON.

SW2 Wakeup button SW2 is a general-purpose input and a low-power wake up unit (WUU)

pin. Pressing SW2 gives a low level on P0_23/WAKEUP_B, otherwise,

it is a high level on P0_23/WAKEUP_B.

SW3 In-system programming (ISP)

mode switch

SW3 is an ISP mode switch and can also act as a general-purpose

input. Pressing SW3 gives a low level on P0_6/ISPMODE_N-DEBUG,

otherwise, it is a high level on P0_6/ISPMODE_N-DEBUG.

Table 4. FRDM-MCXN947 push buttons

Figure 5 shows the circuit diagrams of the FRDM-MCXN947 push buttons.

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Figure 5. Push button circuit diagram

1.8 LEDs

Table 5 describes the FRDM-MCXN947 light-emitting diodes (LEDs) that correspond to the target MCU. The

board also has some MCU-Link-specific LEDs, which are described in Section 3.10. The LEDs are shown in

Figure 3.

Note: The FRDM-MCXN947 board also has three status indicator LEDs for MCU-Link. For details, see

Section 3.10.

Part

identifier

LED color LED name / function Description

D1 Red Reset LED Indicates system reset activity. When board reset is initiated,

for example, by pressing the SW1 reset button, the D1 LED

turns ON.

D2 Red/green/blue RGB LED User application LEDs. Each of these LEDs can be controlled

through a user application.

•Red LED connects to target MCU pin P0_10

•Green LED connects to target MCU pin P0_27

•Blue LED connects to target MCU pin P1_2

D5 Green P3V3 PWR ON Indicates P3V3 power on status. When P3V3 is available on

board, D5 turns ON.

Table 5. FRDM-MCXN947 LEDs

Figure 6 shows the circuit diagram of the RGB LEDs described in Table 5.

Figure 6. RGB LED circuit diagram

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FRDM-MCXN947 Board User Manual

2 FRDM-MCXN947 functional description

This section describes the features and functions of the FRDM-MCXN947 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 MCXN947 MCU, see MCX N94x, N54x Product Family Data Sheet and MCX

Nx4x Reference Manual.

2.1 Power supplies

The FRDM-MCXN947 board is powered with a P5V0 (5 V) power supply using one of the following source

options:

•P5V_USB_HS supply from high-speed (HS) USB2.0 Type-C connector (J11)

•P5V_HDR_IN supply from 5 V regulator populated at 3-pin jumper (J15) (Not populated by default)

•P5V0 supply from Arduino Shield compatible header, J3 (pin 10)

•P5V_MCU_LINK_USB supply from MCU-Link USB2.0 Type-C connector (J17)

The P5V0 supply is an input power supply on the board and is a source for secondary power supplies.

Other power supplies in the FRDM-MCXN947 board are through voltage regulators or are connected through

jumpers, which can be used to enable/disable a power supply.

Section 2.1 shows the system power circuit on the FRDM-MCXN947 board.

Figure 7. FRDM-MCXN947 system power circuit diagram

5 V power sources and selection

Table 6 describes the 5 V input power sources and their output power supplies.

Part identifier Device / power source Output power supply Description

J17 MCU-Link USB2.0

Type-C 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

J11 HS USB2.0 Type-C

connector

P5V_USB_HS One of the sources for P5V0 (5 V) supply

J15 5 V power regulator

populated at J15

P5V_HDR_IN One of the sources for P5V0 (5 V) supply

J3 (pin 10) Arduino shield

compatible header

P5V0 Power supply for:

•XC6227C331PR-G LDO voltage regulator

(U2)

•TJA1057 CAN PHY (U10) and CAN 2x2-pin

header (J10)

•mikroBUS connector (J5)

Table 6. 5 V power sources

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