NXP Semiconductors MCX-N9 EVK Series User Manual
Below you will find brief information for MCX-N9XX EVK. This evaluation kit is designed for application prototyping and demonstrating the capabilities of the MCX N94x family of devices. It features a dual Arm Cortex-M33 MCU, NPU, external serial flash, accelerometer, temperature sensor, Ethernet, USB, and an onboard debug probe. It supports Arduino and FRDM ecosystem shield modules and Mikroe click boards.
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UM12036 MCX-N9XX-EVK Board User Manual Rev. 1 — 20 January 2024 User manual Document information Information Content Keywords MCX-N9XX-EVK, UM12036, MCX N94x Abstract The NXP MCX N9XX Evaluation Kit (MCX-N9XX-EVK) board is a full-featured evaluation and development board for application prototyping and demonstration of the MCX N94x family of devices. This document describes the hardware for the MCX-N9XX-EVK development board. UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual 1 MCX-N9XX-EVK overview The NXP MCX N9XX Evaluation Kit (MCX-N9XX-EVK) board is a full-featured evaluation and development board for application prototyping and demonstration of the MCX N94x family of devices. The MCX N94X integrates a dual Arm Cortex-M33 MCU and a neural processing unit (NPU) into a single package. NXP supports MCX N94X with tools and software that include hardware evaluation boards, software development IDE, example applications, and drivers. The MCX-N9XX-EVK development board consists of the MCX N94X device with a 64-Mbit external serial flash (provided by Winbond), FXLS8964AF accelerometer, P3T1755DP I3C temperature sensor, visible light sensor, onboard CAN PHY, Ethernet PHY, SDHC circuit, 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 N94x represents the MCX N947 and MCX N946 devices in this document. • For simplicity, the MCU-Link debug probe is referred to as "MCU-Link" and the MCX N94X MCU is referred to as "target MCU" in this document. 1.1 Block diagram Figure 1 shows the MCX-N9XX-EVK block diagram. Figure 1. MCX-N9XX-EVK block diagram UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 2 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual 1.2 Board features Table 1 describes the features of the MCX-N9XX-EVK board. Table 1. MCX-N9XX-EVK features Board feature Target MCU features used Description MCX N94x MCU (target MCU) The MCX N94x 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 Temperature sensor Improved inter-integrated circuit (I3C) Supports NXP P3T1755DP temperature sensor Ethernet Ethernet controller (ENET0) I/O headers 10 / 100 Mbit/s (RMII) LAN8741 Ethernet PHY and RJ45 connector 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 CAN FlexCAN controller One 4-pin CAN FD connector 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 UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 3 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual Table 1. MCX-N9XX-EVK features...continued Board feature Target MCU features used Description 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 USBto-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-N9XX-EVK 1.3 Board kit contents The MCX-N9XX-EVK board kit contains the following items: • MCX-N9XX-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-N9XX-EVK. MCX N947 processor Figure 2. MCX-N9XX-EVK top view UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 4 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual Figure 3 shows the top-side view of the MCX-N9XX-EVK board, with connectors, push buttons, and LEDs highlighted. J8 (10 / 100 Mbit/s RJ45) J11 J9 (Debug and trace) (External Flash) J5 (MCU-Link USB) J15 (MCU-Link SWD) D25 D24 J13 (MCU-Link GPIO header) J12 (M.2) J2 J1 (Arduino) J14 (DMIC EXP.) D13 D14 D8 D12 D10 D11 D9 MCU-Link LEDs D21 J19 (MikroBUS) SW6 (MCU-Link Reset) J20 (FlexIO) J22 (MikroBUS) SW1 (MCX N9 Reset) J21 (PMIC controller) J3 J4 (Arduino) D7 J27 (HS USB) J25 (SDHC) J28 (FS USB) E1 (Touch slider) D22 (RGB LED) SW3 SW3 SW4 (NMI) (ISP) (Wakeup) J29 SW5 (CAN Bus) (PMIC RST) Figure 3. MCX-N9XX-EVK connectors, push buttons, and LEDs (top-side view) Figure 4 shows the jumpers of the MCX-N9XX-EVK board. UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 5 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual JP9 JP11 (DNP) JP10 JP4 JP6 (DNP) JP12 JP16 (DNP) JP20 (DNP) JP15 JP13 JP14 JP18 JP23 J17 J18 JP1 (DNP) JP3 (DNP) JP2 (DNP) JP5 JP7 JP8 (DNP) JP21 JP17 JP22 JP19 JP24 JP25 JP28 JP30 JP26 JP34 JP29 JP39 JP32 JP33 JP38 JP44 JP31 JP35 JP27 JP41 JP48 JP46 J24 J26 JP43 JP45 JP40 JP47 JP42 J23 (DNP) JP49 JP36JP37 Figure 4. MCX-N9XX-EVK jumpers 1.5 Connectors Table 2 describes the MCX-N9XX-EVK connectors. The connectors are shown in Figure 3. Table 2. MCX-N9XX-EVK connectors 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). For more information on this connector, see MCX-N9XXEVK schematics J24 1 x 2 pin header Lithium-ion/external battery connector J1 2 x 8 pin header Arduino compatible I/O header Section 2.12 J2 2 x 10 pin header J3 2 x 8 pin header J4 2 x 6 pin header J5 USB connector MCU-Link USB connector Section 3.7 UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 6 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual Table 2. MCX-N9XX-EVK connectors...continued 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 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 J15 (DNP) 2 x 5 pin header MCU-Link SWD connector For more information on this connector, see MCX-N9XXEVK schematics J16 1 x 1 header To monitor CLKOUT clock output on P0_6 For more information on this connector, see MCX-N9XXEVK schematics J19 1 x 8 position receptacles mikroBUS socket connectors Section 2.14 J20 2 x 14 pin header FlexIO header for LCD screen connection Section 2.13 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-N9XXEVK schematics J22 1 x 8 position receptacles mikroBUS socket connectors Section 2.14 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 1 x 4 pin header Connects to the CAN bus and allows external connection with the bus Section 2.9 JP42 2 x 3 pin header Used for tamper different mode test Section 2.15 1.6 Jumpers Table 3 describes the MCX-N9XX-EVK jumpers. The jumpers are shown in Figure 4. Table 3. MCX-N9XX-EVK jumpers Part identifier Jumper type Description Reference section J26 2x5 pin header P5V0 input power selection • 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) Section 2.1 UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 7 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual Table 3. MCX-N9XX-EVK jumpers...continued Part identifier Jumper type Description Reference section JP4 1x2 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 1x2 pin header • Open (default setting): Enables the onboard MCU-Link Section 3.9 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 JP6 1x2 pin header • Open (default setting): Enables the MCU-Link SWD Section 3.3 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. JP9 1x2 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-N9XX-EVK schematic JP12 1x3 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 1x3 pin header • Pin 1-2 shorted (default setting): Port P1 pin 21 (P1_21) connects to the DA7212 audio codec (DNP) through dualsupply 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-N9XX-EVK schematic JP14 1x2 pin header Pin 1-2 shorted (default setting): VDD_MCU is sourced from MCU_PWR supply For more information on this jumper, see MCX-N9XX-EVK schematic JP15 (DNP) 1x3 pin header • Pin 1-2 shorted: VDD_P3 is sourced from the P3V3 power Section 2.1.1 supply • Pin 2-3 shorted (default setting): VDD_P3 is sourced from P1V8 supply Note: VDD_P3 must be 1.8 V for QSPI flash and SIM card interfaces. JP17 1x3 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 JP18 1x3 pin header • Pin 1-2 shorted: VDD_LDO_CORE_IN is sourced from Section 2.1.1 MCU_PWR power supply • Pin 2-3 shorted (default setting): VDD_LDO_CORE_IN is sourced from VDD_CORE supply UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 Section 2.4 © 2024 NXP B.V. All rights reserved. 8 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual Table 3. MCX-N9XX-EVK jumpers...continued Part identifier Jumper type Description Reference section Note: Default setting for LDO_CORE disable case. JP19 1x2 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 N94X MCU Section 3.8 JP21 1x3 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-N9XX-EVK schematic JP22 1x2 pin header MCU-Link debug probe target selection jumper: Section 3.3 • 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. JP23 1x2 pin header • Open (default setting): To disable external pull-up Section 2.8 resistance on the I3C SDA • Shorted: To enable external pull-up resistance on I3C SDA JP24 1x2 pin jumper MCU-Link (LPC55S69) force ISP mode jumper: Installing device drivers and updating • Open (default setting): MCU-Link follows the normal MCU-Link firmware 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 CMSISDAP protocol. Note: By default, MCU-Link flash is preprogrammed with a version of CMSIS-DAP firmware. JP25 1x2 pin header USB-to-I2C bridge enable/disable jumper Section 3.9 • 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 JP26 1x2 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-N9XX-EVK schematic JP27 2x3 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 Section 2.1.1 UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 9 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual Table 3. MCX-N9XX-EVK jumpers...continued Part identifier Jumper type Description Reference section • 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. JP28 1x2 pin header • Pin 1-2 open (default setting): Voltage reference output Section 2.12 (VREFO) does not connect to Pin 16 of Arduino connector J1 • Pin 1-2 shorted: VREFO connects to Pin 16 of Arduino connector J1 JP30 1x2 pin header Pin 1-2 shorted (default setting): VREFH is sourced from VDDA supply JP31 1x2 pin header Pin 1-2 shorted (default setting): VDD_SYS is sourced from Section 2.1.1 VDD_LDO_SYS_IN supply Note: This is shorted in LDO_BYPASS mode. JP29 1x2 pin header MCU-LINK current measurement circuit jumpers. Pins 1-2 shorted (default setting) Section 3.10 JP34 1x2 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 1x3 pin header • Pin 1-2 shorted (default setting): VDD_CORE is sourced Section 2.1.1 from the DCDC_VDDCORE power supply • Pin 2-3 shorted: VDD_CORE supply is sourced from P1V1 supply Note: VDD_CORE is powered by DC-DC, LDO_core is disabled. JP36 1x3 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 1x3 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 JP38 1x3 pin header MCU-LINK current measurement circuit jumper • Pin 1-2 shorted (default setting): MCU_PWR and MCU_ PWR_SRC are sourced from P3V3 supply • Pin 2-3 shorted: MCU_PWR and MCU_PWR_SRC are sourced from P1V8 supply Section 3.10 JP39 1x2 pin header Pin 1-2 shorted (default setting): VDDA is sourced from VDD_P4 supply For more information on this jumper, see MCX-N9XX-EVK schematic JP40 1x2 pin header Pin 1-2 shorted (default setting): VDD_USB is sourced from the P3V3 power supply For more information on this jumper, see JP32 For more information on this jumper, see MCX-N9XX-EVK schematic JP33 UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 10 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual Table 3. MCX-N9XX-EVK jumpers...continued Part identifier Jumper type Description Reference section MCX-N9XX-EVK schematic JP43 1x3 pin header PMIC reset Section 2.1 • 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 JP44 1x3 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 2x3 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 1x2 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 1x3 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 1x2 pin header P1V1 output Section 2.1 • Pin 1-2 shorted (default setting): PCA9420 PMIC SW1 is selected for P1V1 output JP49 1x2 pin header ISP mode enable/disable • Open (default setting): Normal operation • Shorted: ISP mode Section 1.7 JP50 1x2 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 1x2 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 UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 11 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual 1.7 Push buttons Tactile buttons are populated on the MCX-N9XX-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-N9XX-EVK push buttons. The push buttons are shown in Figure 3. Table 4. MCX-N9XX-EVK push buttons Part identifier Switch name Description SW1 Reset button (MCX N94X 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 N94X 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 (LPC55S69). Figure 5 shows the circuit diagrams of the MCX-N9XX-EVK push buttons. Figure 5. Push button circuit diagram UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 12 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual 1.8 LEDs Table 5 describes the MCX-N9XX-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. Table 5. MCX-N9XX-EVK LEDs 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. Figure 6 shows the circuit diagram of the RGB LEDs described in Table 5. Figure 6. RGB LED circuit diagram The RGB LEDs are powered by the P3V3 rail. However, these LEDs are not included in current measurements by the MCULink Energy Monitor circuit. 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-N9XX-EVK functional description This section describes the features and functions of the MCX-N9XX-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-N9XX MCU, see MCX N94x, N54x Product Family Data Sheet and MCX Nx4x Reference Manual. 2.1 Power supplies The MCX-N9XX-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) UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 13 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual 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-N9XX-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. Table 6. 5 V power sources Part identifier Device / power source Output power supply Description J5 MCU-Link USB micro-B P5V_MCU_LINK_USB connector • One of the sources of P5V0 (5 V) supply (default option) • USB regulator input power supply for MCULink microcontroller LPC55S69 J28 FS USB connector VREG_IN_USB0 One of the sources for P5V0 (5 V) supply J27 HS USB connector VREG_IN_USB1 One of the sources for P5V0 (5 V) supply J23 5 V power regulator populated at J23 P5V_HDR_IN One of the sources for 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 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-N9XX-EVK board. UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 14 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual Figure 7. MCX-N9XX-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. Table 7. P3V3 power sources Part identifier Device / power source Output power supply Description U2 PCA9420BSAZ (NXP Semiconductors) LDO2_OUT: 3.3 V One of the sources for P3V3 supply U54 ADM7172 regulator (Analog Devices) ADM7172_VOUT: 3.3 V One of the sources for 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 – FlexCAN transceiver TJA1057 (U39) – Dual supply translating transceivers NTS0302 (U50), 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 VDD_P2 supply through the JP47 jumper. For details, see Section 1.6 UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 15 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual Table 7. P3V3 power sources...continued Part identifier Device / power source Output power supply Description • One of the sources for VDD_P3 supply through the JP15 jumper. For details, see Section 1.6 • One of the sources for VDD_P4 supply through the JP45 jumper. For details, see Section 1.6 • One of the sources for 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 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-N9XX-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. Table 8. P1V8 power sources Part identifier Device / power source Output power supply U2 PCA9420BSAZ (NXP Semiconductors) LDO1_OUT: 1.8 V One of the sources for P1V8 supply SW2_OUT: 1.8 V One of the sources for P1V8 supply (default option) - LDO1_OUT through JP46 and JP41 P1V8 - SW2_OUT through JP46 and JP41 • Power supply for: – Audio codec DA7212 (Not connected by default) – 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 UM12036 User manual Description All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 16 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual Table 8. P1V8 power sources...continued Part identifier Device / power source Output power supply Description • One of the sources for th eVDD_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 • 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 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 MCXN9XX-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. Table 9. P1V1 power sources Part identifier Device / power source Output power supply Description U2 PCA9420BSAZ (NXP Semiconductors) SW1_OUT Source for P1V1 supply (default option) - SW1_OUT through JP48 jumper P1V1 Source for VDD_CORE through JP35 jumper (Not a default option. for details, see Section 1.6) 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-N9XX-EVK board. UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 17 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual Figure 10. P1V1 source selection 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 access to insert ammeters in all the supplies connecting to the MCX N94X device. They also provide a means of connecting external supplies to any of the MCX power pins. UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 18 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual SHORTING HEADER ON BOTTOM LAYER . Figure 11. Power configuration jumpers The MCX-N9XX-EVK board supports current measurement for board power supplies through the onboard MCU-Link debug probe. For more details, see Section 3.10. 2.1.1 Power supply configuration • Table 10 describes the default power jumper configuration for the MCX-N9XX-EVK board. UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 19 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual Table 10. MCX-N9XX-EVK default power supply configuration Description JP38 Dual IO, 3.3 V 1-2 and 1.8 V [1] JP27 JP35 JP18 JP36 JP31 JP37 JP47 JP15 1-2 1-2 2-3 1-2 1-2 1-2 1-2 2-3 [1] JP45 1-2 Changing JP15 to 3.3 V requires cutting a cut trace at the bottom of the board and installing a header. If this setting is done, care must be taken to disconnect or remove the onboard flash device, as this device is a 1.8 V only device. This configuration is selected to demonstrate the 3.3 V capability and to allow for demonstration of a high-speed low-power (1.8 V) QSPI flash device. Table 11 describes the typical power supply configurations for DCDC operation, while Table 12 describes the typical power supply configurations for LDO operation. • MCX-N9XX-EVK power supply configurations for DCDC operation Table 11. Power supply configurations for DCDC operation Description JP38 JP27 JP35 JP18 JP36 JP31 JP37 JP47 JP15 JP45 Single supply operation, IO @ 3.3 V 1-2 1-2 1-2 2-3 1-2 1-2 1-2 1-2 1-2 1-2 Single supply operation, IO @ 1.8 V 2-3 1-2 1-2 2-3 2-3 Open 2-3 2-3 2-3 2-3 Dual IO, 3.3 V and 1.8 V 1-2 1-2 1-2 2-3 2-3 2-3 1-2 or 2-3 1-2 or 2-3 1-2 or 2-3 1-2 or 2-3 • MCX-N9XX-EVK power supply configurations for LDO operation Table 12. Power supply configurations for LDO operation Description JP38 JP27 JP35 JP18 JP36 JP31 JP37 JP47 JP15 JP45 Single supply operation, IO @ 3.3 V 1-2 3-4 5-6 Open 1-2 1-2 1-2 1-2 1-2 1-2 1-2 Single supply operation, IO @ 1.8 V 2-3 3-4 5-6 Open 1-2 2-3 Open 2-3 2-3 2-3 2-3 Dual IO, 3.3 V 1-2 and 1.8 V 3-4 5-6 Open 1-2 1-2 2-3 1-2 or 2-3 1-2 or 2-3 1-2 or 2-3 1-2 or 2-3 2.1.2 DC-DC inductor The MCX-N9XX-EVK board uses a 1.5 μH DC-DC inductor L1 (Taiyo Yuden LSBHB2520MKT1R5M). The inductor is enabled when the board is configured in DC-DC Buck mode. Figure 12 shows the DC-DC inductor circuit diagram of the MCX-N9XX-EVK board. UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 20 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual Figure 12. DC-DC inductor circuit diagram Choosing the right DC-DC inductor for your target board is important. While selecting a DC-DC inductor, look for the following specifications: • Inductor value: 1.5 µH • ESR: < 0.3 Ω • Saturation current (Isat): > 300 mA • Self-resonant frequency: > 50 MHz 2.2 Clocks The MCX-N9XX-EVK board provides crystal oscillators to provide accurate time bases for the device and different components on the board. Figure 13. MCX-N9XX-EVK onboard system clocks Table 13 describes the clock sources available on the MCX-N9XX-EVK board. Table 13. MCX-N9XX-EVK clocks Clock generator Clock frequency Destination Description Crystal oscillator, Y2 32.768 kHz • Port 5 pin 1 (XTAL32K) of target MCU MCX N94X For an accurate low-power timebase: UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 21 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual Table 13. MCX-N9XX-EVK clocks...continued Clock generator Clock frequency Destination Description • Port 5 pin 0 (EXTAL32K) of target MCU MCX N94X • Internal load capacitors provide the entire crystal load capacitance. • To measure the 32.768 kHz oscillator frequency, enable the RTC_CLKOUT signal to be available on the TAMPER1 pin. It can be observed at J2_5. Crystal oscillator, Y3 24 MHz • Port 1 pin 30 (XTAL48M) of target MCU MCX N94X • Port 1 pin 31 (EXTAL48M) of target MCU MCX N94X For high-frequency accurate timebase: • Required external load capacitors are provided. • Small package size (2.0 mm x 1.6 mm) • Low-ESR (80 Ω) crystal. Crystal oscillator, Y5 32.7680 kHz Pin 50 (SUSCLK) of the M.2 Key E card connector (J12) Crystal oscillator VDD is supplied by the P3V3 power rail. Crystal oscillator, Y7 50 MHz RMII 10/100 Mbit/s Ethernet transceiver Provides ETHPHY_CLK to LAN8741 Ethernet (U37) PHY depending upon the JP50 jumper setting. It also provides a provision to feed the clock back into the target MCU (MCX N94X). For JP50 details, see Section 1.6. 2.3 USB interface The target MCU (MCX N94X) features two USB modules (FS USB and HS USB), each with device and host capabilities and a built-in transceiver. • FS USB is a dual-role USB controller that supports full-speed (FS) device or FS / low-speed (LS) embedded host operation • HS USB can operate in either device or host mode. In device mode, it can connect to the USB host systems at either HS USB rate of 480 Mbit/s or FS rate of 12 Mbit/s. In host mode, it can connect to peripheral devices operating at HS, FS, or the USB 2.0 LS rate of 1.5 Mbit/s. Table 14 describes the USB ports available on the MCX-N9XX-EVK board. Table 14. USB Ports Part identifier Connector type Description J28 USB2.0 Micro-AB connector Connects to FS USB controller of the target MCU. The J28 USB port can connect in both Host and Device mode. In Device mode, this port can provide the 5 V power supply source to the board depending upon the J26 jumper setting (see Section 1.6). J27 USB2.0 Micro-AB connector Connects to HS USB controller of the target MCU. The J27 USB port can connect in both Host and Device mode. In Device mode, this port can provide the 5 V power supply source to the board depending upon the J26 jumper setting (see Section 1.6). FS USB interface On the MCX-N9XX-EVK board, the USB0_DM and USB0_DP signals from the target MCU (MCX N94X) connect to the onboard USB connector (J28) directly through the required 33 ohm resistors and a common mode choke. The common mode choke is included for noise suppression on the DM / DP signals, however, pads are included to install bypass resistors for testing choke-less configurations. Figure 14 shows the FS USB circuit diagram. UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 22 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual VBUS control Figure 14. FS USB circuit diagram HS USB interface On the MCX-N9XX-EVK board, the USB1_DM and USB1_DP signals from the MCX N94X MCU connect to the onboard USB connector (J27) directly through a common mode choke. The common mode choke is included for noise suppression on the DM / DP signals, however, pads are included to install bypass resistors for testing choke-less configurations. Figure 15 shows the HS USB circuit diagram. VBUS control Figure 15. USB HS circuit diagram 2.4 SD card interface The target MCU (MCX N94X) features one micro secure digital host controller (uSDHC) module. On the MCX-N9XX-EVK board, the uSDHC controller connects to the SD card connector (J25). • The SD card detect pin is an open switch that shorts with GND when the card is inserted. • The SD card VDD (VDD_SD) is supplied by the P3V3 rail and is controlled by the protected power switch (U56). The Port P0 pin 11 is used to control the ON/OFF of the U56 power switch depending upon the 3-pin jumper (JP17) configuration. For the JP17 Jumper details, see Section 1.6. • The SD card bus pins are Port P2_[7:1] pins. Therefore, the Port P2 voltage must be set according to the type of card being used. Figure 16 shows the SD card connections. UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 23 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual Figure 16. Micro SD card connector circuit The Port P2_[7:1] lines that are used for SDHC interface signals are also shared with the M.2 connector (J12) signals and the PWM signals on the Arduino compatible header (J3). Zero-ohm onboard resistors are used to allow the selection of signals between the SDHC card slot or the M.2 connector. The Arduino-compatible header sockets are connected by default, however, can also be disconnected easily by removing the appropriate zeroohm resistors. Figure 17 shows the zero-ohm resistor connections for uSDHC signals selection. Figure 17. uSDHC card connection selection resistors UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 24 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual 2.5 Flash memory interface The target MCU (MCX N94X) features one Flexible Serial Peripheral Interface (FlexSPI) controller, which can support an external memory. On the MCX-N9XX-EVK board, one Quad SPI memory is provided. The flash memory VCC (VDD_FLASH) is supplied by the P1V8 rail through the JP15 jumper. For JP15 jumper details, see Section 1.6. Table 15 provides the detail of the Quad SPI flash memory on the board. Table 15. Quad SPI flash memory Part identifier Manufacturer and part name Description U55 Winbond W25Q64JWTBJQ It is a 1.8 V 64-Mbit (8 MB) serial flash memory with dual and quad SPI, which is intended for demonstrating FlexSPI boot applications, and general FlexSPI operation. For main features, refer to device data sheet. Figure 18 shows the flash memory circuit diagram. Figure 18. FlexSPI circuit diagram The FlexSPI data and clock signals for the flash memory interface are available on Port P3[1:0] and P3[15:6] pins. The MCX N94X FlexSPI controller can connect either to an onboard QSPI flash memory (U55) or to an external flash memory connected through the Flash daughter card connector (J9). The recommended connector for the flash daughter card connector is the Samtec QSE-014-01-F-D-DP-A. Some of the FlexSPI signals are also multiplexed with the SAI signals for the M.2 connector. Zero-ohm onboard resistors are used to allow the selection of signals either for the QSPI flash memory or for the other connectors (flash data card connector or SAI interface of the M.2 connector). By default, signals for the QSPI flash memory are selected. Onboard zero ohm resistors are used to connect or disconnect the flash interface lines from the onboard QSPI flash memory chip and connect to the flash data card connector or SAI interface of the M.2 connector. Figure 19 displays the resistors that make these connections. UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 25 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual Figure 19. Resistors configuration Table 16 describes the zero-ohm resistors configuration to select onboard flash memory or other board components on the flash interface lines. Table 16. Zero-ohm resistors configuration Port[pin] / Signal Resistor Resistor configuration Description P3_0 R897 Connects FLEXSPI0_SS0 to the flash chip select signal (through resistor R470) P3_1 R897 • Selection A (Pin 1-2) (default setting): Flash interface line connects to onboard flash memory • Selection B (Pin 2-3): Flash interface line connects to flash daughter card connector P3_7 R898 For flash clock signal FLASH_RST_ [1] B R899 For flash reset P3_6 R900 For flash data strobe signal UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 Connects FLEXSPI0_SS1 to the flash chip select signal (through resistor R469, which is DNP by default) Note: Both resistors, R470 and R469 should not be installed simultaneously. © 2024 NXP B.V. All rights reserved. 26 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual Table 16. Zero-ohm resistors configuration...continued Port[pin] / Signal Resistor P3_8 R901 P3_9 R902 P3_10 R903 P3_11 R904 P3_12 R939, R957, R958 • R939 Populated (default setting): Connects the signals For flash data signal / SAI0 from the P3_12 pin with the onboard flash memory RXD • R957 Populated: Connects the signals from the P3_12 pin with the flash daughter card connector. DNP by default. • R958 Populated: Connects the signals from the P3_12 pin with the SAI0 interface of M.2 connector. DNP by default. P3_13 R940, R959, R960 • R940 Populated (default setting): Connects the signals For flash data signal / SAI0 from the P3_13 pin with the onboard flash memory TXD • R959 Populated: Connects the signals from the P3_13 pin with the flash daughter card connector. DNP by default. • R960 Populated: Connects the signals from the P3_13 pin with the SAI0 interface of the M.2 connector. DNP by default. P3_14 R943, R944, R961 • R943 Populated (default setting): Connects the signals For flash data signal / SAI RX from the P3_14 pin with the onboard flash memory BCLK • R944 Populated: Connects the signals from the P3_14 pin with the flash daughter card connector. DNP by default. • R961 Populated: Connects the signals from the P3_14 pin with the SAI0 interface of the M.2 connector. DNP by default. P3_15 R962, R963, R964 • R962 Populated (default setting): Connects the signals For flash data signal / SAI RX from the P3_15 pin with the onboard flash memory FS • R963 Populated: Connects the signals from the P3_15 pin with the flash daughter card connector. DNP by default. • R964 Populated: Connects the signals from the P3_15 pin with the SAI0 interface of the M.2 connector. DNP by default. [1] Resistor configuration Description For flash data signals The FLASH_RST_B is driven by the MCU_RESET_B signal. 2.6 Ethernet interface The target MCU (MCX N94X) features one Ethernet controller (ENET0) module. On the MCX-N9XX-EVK board, the Ethernet controller connects to an RJ45 connector through an Ethernet PHY transceiver. The transmit, receive, and other Ethernet signals are on the P1 port pins. The MCX-N9XX-EVK only supports RMII configuration. For this reason, the TXD3 and TXD2 pins have been grounded through resistors R260 and R261. Table 17 describes the onboard devices supporting the Ethernet interface. UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 27 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual Table 17. Ethernet interface devices Part identifier Part name and Manufacturer Description J8 Würth Elektronik 7499211121A Shielded RJ45 connector jack with magnetic built-in to connect to an Ethernet cable U37 Microchip Technology LAN8741 Single-chip 10 /100 Mbit/s RMII Ethernet PHY is compliant with IEEE802.3/802.3u (Fast Ethernet), ISO 802-3/IEEE 802.3 (10 BASE-T), and Energy-Efficient Ethernet IEEE 802.3az Input to the XTAL1/CLKIN pin of the Ethernet PHY can be either of the following: • ENET0_TXCLK clock from the target MCU (MCX N94X) received through the P1_4 port. This is the default configuration. • OSC_50M clock from an external 50 MHz crystal oscillator (Y7). This oscillator can be enabled/disabled through the JP50 jumper. The jumper is disabled by default to allow the target MCU to provide the PHY clock (and should always be disabled when the target MCU has to provide the PHY clock). For details, see Section 1.6. The Ethernet circuit supports both 3.3 V and 1.8 V I/O operation. However, the jumper JP4 is provided to allow for complete depowering of the Ethernet circuit. This may be necessary when connecting large loads to the P3V3 net. For the JP4 jumper details, see Section 1.6. 2.7 Accelerometer sensor interface On the MCX-N9XX-EVK board, an accelerometer sensor is used to sense motion, a feature required in the IoT application space. The main features of the Accelerometer sensor interface are as follows. • 3-Axis Low-G MEMS accelerometer sensor device FXLS8964AF (U40) is used. • The sensor device is powered by the VDD_FXL supply, which is tied to the VDD_P4 supply through a zero ohm resistor (R893). • Discrete pull-up resistors for the I2C bus lines are provided • The default I2C address for the device is configured as 0x19. Address can be changed by pull-up / pull-down resistors on the SA0 line. – With a pull-up resistor (R299), a high signal on SA0, and the 7-bit I2C address is 0x19. – With a pull-down resistor (R896), a low signal on SA0, and the 7-bit I2C address is 0x18. • Two interrupt signals routed to test pads for prototyping, if required. • The I2C uses shared lines for the I2C interface. • Series zero ohm resistors (R42 and R43) are provided to isolate the sensor from the MCX N94X device. Figure 20 shows the FXLS8964AF sensor circuit diagram. UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 28 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual Figure 20. FXLS8964AF sensor circuit 2.8 I3C interface The MCX-N9XX-EVK includes one P3T1755 digital temperature sensor to demonstrate the I3C capabilities of the target MCU. This device allows for 32 I3C provisional IDs, supports the fully operating voltage of the board (1.71 V - 3.6 V), programmable overtemperature alerts, 12b resolution, and has an accuracy of ± 1 °C. Jumper JP23 is used for the I3C Pull-Up Resistance (PUR) provision on the I3C1 SDA signal. For JP23 details, see Section 1.6 Figure 21 shows the I3C sensor schematic diagram. Figure 21. I3C sensor schematic diagram 2.9 FlexCAN interface The controller area network (FlexCAN) is a full implementation of the CAN protocol specification, the CAN with flexible data rate (CAN FD) protocol, and the CAN 2.0 version B protocol, which supports both standard and UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 29 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual extended message frames and long payloads. The target MCU (MCX N94X) supports two CAN (w/wo FD) controllers (CAN0 to CAN1). On MCX-N9XX-EVK, only the CAN0 controller is used. The CAN0 controller connects to a 4-pin CAN header through a CAN transceiver. The CAN0_TX and CAN0_RX signals are through ports P1_18 and P1_19, respectively. As the TJA1057 VIO pin allows for direct interfacing with 3.3 V and 5 V (and not 1.8 V), a 2-bit dual-supply translating transceiver (NTS0302) is provided if the target MCU P1 pins are powered with 1.8 V supply. The NTS0302 (U50) transceiver provides bidirectional voltage translations from VDD_BRD to P3V3 and vice versa. Table 18 describes the HS CAN transceiver and 4-pin CAN header used on the board. Table 18. High-speed CAN transceiver and header Part identifier Manufacturing part number Description U39 TJA1057GT/3 High-speed CAN transceiver. Provides an interface between the CAN0 controller and the physical two-wire CAN0 bus. s J29 - 4-pin CAN header. It is connected to the CAN0 bus and allows external connection with the bus. Figure 22 shows the FlexCAN interface schematic. Figure 22. FlexCAN interface schematic Table 19 describes the 4-pin J19 CAN header pinout. Table 19. CAN header - pinout Pin Signal Description 1 CAN1_H CAN transceiver high signal 2 CAN1_L CAN transceiver low signal 3 P5V0 5 V power supply 4 GND Ground UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 30 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual 2.10 Visible light sensor interface On the MCX-N9XX-EVK board, one phototransistor is provided, which connects to the ADC input channel ANA_4 of the target device (MCX N94X) for evaluating the ADC module. Table 20 provides the detail of the light sensor device on the board. Table 20. Light sensor device Part identifier Manufacturer and part name Description Q10 Everlight ALS-PT19-315C/L177/ TR8 It is a low-cost ambient light sensor, consisting of phototransistor in miniature SMD. Figure 23. Light sensor circuit diagram The light sensor output is not shared with other GPIO or devices and is connected via a high-speed analog channel. The light sensor can be isolated from the MCX N94X device by cutting the shorting link SH1. The input voltage to the light sensor is VDDA through jumper connection JP34 to allow for removing the light sensor from any current measurements being made. For the JP34 jumper details, see Section 1.6. If VDDA is more than the configured VREFH, the maximum voltage the ADC can convert is that of VREFH. If no light reaches the light sensor, a small current is drawn from VDDA. 2.11 M.2 interface The MCX-N9XX-EVK board features a M.2 Key E mini card 75-pin connector (J12) for Wi-Fi support. The M.2 mini card connector supports USB, SDHC, I2S, UART, I2C, and GPIO connections. The connector can be used for Wi-Fi/Bluetooth card, 802.15.4 Radio, or 3G/4G card. This card connector supports the Murata Wi-Fi card module, which is based on an NXP IW416 chip supporting dual-band 1x1 Wi-Fi 4 and Bluetooth 5.2. Figure 24 shows the M.2 connector interface circuit diagram. UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 31 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual Figure 24. M.2 interface circuit Note: • Many of these connections are not the default connections and are shared with other features of the MCXN9XX-EVK. Be sure to check that the signals you intend to use are properly connected to the M.2 connector circuit and do not overlap with other desired peripherals. • Ports P2 and P4 must be configured for 1.8 V operation to use this card connector. Table 21 describes the pinout of the M.2 connector (J12). Table 21. M.2 connector (J12) pinout Pin number Net name GPIO Potential conflict 1 GND - - 2 3V3 - - 3 USB D+ - - 4 3V3 - - 5 USB D- - - 6 LED1 - - 7 GND - - 8 I2S_SCK P3_14 • Flash Daughter card connector (J9 pin 25) UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 32 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual Table 21. M.2 connector (J12) pinout...continued Pin number Net name GPIO Potential conflict • Onboard flash memory (U55 pin E2) 9 SDIO_CLK P2_4 • SDHC card connector (J25 pin 5) • Arduino compatible header (J3 pin 11) 10 I2S_WS P3_15 • Flash Daughter card connector (J9 pin 26) • Onboard flash memory (U55 pin E1) 11 SDIO_CMD P2_5 • SDHC card connector (J25 pin 3) • Arduino compatible header (J3 pin 9) 12 I2S_SD_IN P3_12 • Flash Daughter card connector (J9 pin 21) • Onboard flash memory (U55 pin D5) 13 SDIO_DATA0 P2_3 SDHC card connector (J25 pin 7) Arduino compatible header (J3 pin 5) 14 I2S_SD_OUT P3_13 • Flash Daughter card connector (J9 pin 22) • Onboard flash memory (U55 pin E3) 15 SDIO_DATA1 P2_2 • SDHC card connector (J25 pin 8) • Arduino compatible header (J3 pin 7) 16 LED2 - - 17 SDIO_DATA2 P2_7 • SDHC card connector (J25 pin 1) • Arduino compatible header (J3 pin 13) 18 GND - - 19 SDIO_DATA3 P2_6 • SDHC card connector (J25 pin 2) • Arduino header (J3 pin 15) 20 UART_WAKE P0_7 FLEXIO header (J20 pin 8) 21 SDIO_WAKE P3_23 - 22 UART_RXD P4_3 • Arduino header (J1 pin 2) • mikroBUS connector (J22 pin 3) 23 SDIO_RST P3_5 - 24 - - - 25 - - - 26 - - - 27 - - - 28 - - - 29 - - - 30 - - - 31 - - - 32 UART_TXD P4_2 • Arduino header (J1 pin 4) • mikroBUS connector (J22 pin 4) 33 GND - - 34 UART_CTS P4_4 - 35 PET_P0 - - UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 33 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual Table 21. M.2 connector (J12) pinout...continued Pin number Net name GPIO Potential conflict 36 UART_RTS P4_5 Arduino header (J1 pin 1) 37 PET_N0 - - 38 VEN_DEF1 - - 39 GND - - 40 VEN_DEF2 - - 41 PER_P0 - - 42 VEN_DEF3 - - 43 PER_N0 - - 44 COEX3 - - 45 GND - - 46 COEX2 - - 47 REFCLK_P0 - - 48 COEX1 - - 49 REFCLK_N0 - - 50 SUSCLK - - 51 GND - - 52 PERST0 - - 53 CLKREQ0 - - 54 W_DISABLE2 P0_9 FLEXIO header (J20 pin 10) 55 PEWAKE0 - 56 W_DISABLE1 P0_8 FLEXIO header (J20 pin 11) 57 GND - - 58 I2C_DATA P4_0 - 59 PET_P1 - - 60 I2C_CLK P4_1 - 61 PET_N1 - - 62 ALERT 63 GND - - 64 RESERVED - - 65 PER_P1 - - 66 PERST1 - - 67 PER_N1 - - 68 CLKREQ1 - - 69 GND - - 70 PEWAKE1 - - 71 REFCLK_P1 - - UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 34 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual Table 21. M.2 connector (J12) pinout...continued Pin number Net name GPIO Potential conflict 72 3V3 - - 73 REFCLK_N1 - - 74 3V3 - - 75 GND - - 2.12 Arduino compatible I/O headers The MCX-N9XX-EVK provides Arduino Uno compatible headers to support the Arduino and FRDM ecosystem shield modules. These headers are dual-row headers with the outer rows supporting the Arduino compatible shields and the inner rows supporting the various FRDM shields. These headers are designed to support the following shields: • Sensor: FRDM-STBC-AGM01, FRDM-STBC-AGM04, FRDM-FXS-MULT2-B • NFC: OM5577, OM5578 • USB Type C: OM13790 (Host) • Motor control: FRDM-MC-LVBLDC, FRDM-MC-LVPMSM • Touch: FRDM-TOUCH Table 22 describes the connectors of the Arduino socket. Table 22. Arduino socket connectors Part identifier Connector type J1 2x8 position receptacle J2 2x10 position receptacle J3 2x8 position receptacle J4 2x6 position receptacle Figure 25 shows the pinout of the Arduino socket connectors. UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 35 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual Figure 25. Arduino socket connector pinout To allow for the flexibility in the design, some of the signals on the I/O headers can be swapped for other connections using zero-ohm resistors or jumpers. Table 22 describes such signals. Table 23. Arduino compatible header J1 pinout Pin Device pin / number GPIO Default function Secondary function Tertiary function Potential conflict 1 P4_5 GPIO FC2_RTS - M.2 connector (J12) pin 36 2 P4_3 FC2_UART_RXD DAC1_OUT - • MikroBUS socket (J22) pin 3 • M.2 connector (J12) pin 20 3 P4_13 GPIO Motor control (Opamp / FlexIO SINC / ENC) FlexIO header (J20) pin 18 4 P4_2 FC2_UART_TXD DAC0_OUT • MikroBUS socket (J22) pin 4 • M.2 connector (J12) pin 32 UM12036 User manual - All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 36 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual Table 23. Arduino compatible header J1 pinout...continued Pin Device pin / number GPIO Default function Secondary function Tertiary function Potential conflict 5 NC - - - - 6 P0_29 GPIO / PWM - - • 6-pin connector (J21) for PMIC MODESEL0 • NMI push-button (SW2) 7 NC - - - - 8 P1_23 GPIO / PWM - - MikroBUS socket (J22) pin 1 9 NC - - - - 10 P0_30 GPIO / PWM - - - 11 NC - - - - 12 P1_21 GPIO ENET0_MDIO SAI1_MCLK • SAI1_MCLK • Ethernet PHY (ENET0_MDIO) 13 P4_12 - - - • USB0 VBUS DET • FlexIO header (J20) pin 17 14 P1_2 GPIO - - - 15 ANA_14 - - - - 16 P0_31 - - - VREFO Table 24. Arduino compatible header J2 pinout Pin Device pin / number GPIO Default function Secondary function Tertiary function Potential conflict 1 ADC1_B0 ADC - - - 2 P0_28 GPIO USB0_ID - - 3 P5_2 ADC - - P0_14 (R949) 4 P0_10 GPIO / PWM - - MikroBUS socket (J22) pin 2 5 P5-3 ADC - - P0_22 (R951) 6 P0_27 GPIO FC1_SPI_PCS 7 P5_4 ADC - 8 P0_24 GPIO FC1_SPI_SDO 9 P0_3 CMP1_IN1 JTAG_TDI - • P5_5 (R948) • IF_TDI (JP9) 10 P0_26 GPIO FC1_SPI_SDI - • MikroBUS socket (J19) pin 5 • MCU-Link SPI SDI 11 P0_18 TSI PDM External DMIC header (J14) pin 6, R925 resistor 12 P0_25 GPIO FC1_SPI_SCK • MikroBUS socket (J19) pin 4 • MCU-Link SPI SCK 13 P0_19 TSI - UM12036 User manual • MikroBUS socket (J19) pin 3 • MCU-Link SPI PCS - • MikroBUS socket (J19) pin 6 • MCU-Link SPI SDO - All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 - © 2024 NXP B.V. All rights reserved. 37 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual Table 24. Arduino compatible header J2 pinout...continued Pin Device pin / number GPIO Default function Secondary function Tertiary function Potential conflict 14 GND - - - - 15 P1_1 TSI - - - 16 VDDA - - - - 17 P1_0 TSI - - - 18 P4_0 FC2_I2C_SDA - - - 19 NC - - - - 20 P4_1 FC2_I2C_SCL - - - Table 25. Arduino compatible header J3 pinout Pin Device pin / number GPIO Default function Secondary function Tertiary function Potential conflict 1 P2_0 MC_ENC_B - - - 2 NC - - - - 3 P1_22 MC_ENC_A - - - 4 VDD_BRD - - - - 5 P2_3 PWM1_B2 SDHC0_D0 - • M.2 connector (J12) pin 13 • SD card connector (J25) pin 7 6 Reset Reset - - - 7 P2_2 PWM1_A2 SDHC0_D1 8 P3V3 - - - - 9 P2_5 PWM1_B1 SDHC0_CMD - • M.2 connector (J12) pin 11 • SD card connector (J25) pin 3 10 P5V0 - - - - 11 P2_4 PWM1_A1 SDHC0_CLK - • M.2 connector (J12) pin 9 • SD card connector (J25) pin 5 12 GND - - - - 13 P2_7 PWM1_B0 SDHC0_D2 14 GND - - 15 P2_6 PWM1_A0 SDHC0_D3 16 P5-9V_VIN - - • M.2 connector (J12) pin 15 • SD card connector (J25) pin 8 • M.2 connector (J12) pin 17 • SD card connector (J25) pin 1 - • M.2 connector (J12) pin 19 • SD card connector (J25) pin 2 - - Table 26. Arduino compatible header J4 pinout Pin Device pin / number GPIO Default function Secondary function Tertiary function Potential conflict 1 CURA.P FlexIO GPIO • USB0_VBUS_DET P4_12 UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 38 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual Table 26. Arduino compatible header J4 pinout...continued Pin Device pin / number GPIO Default function Secondary function Tertiary function Potential conflict • FlexIO header J20, pin 17 2 ANA_0 / ADC0_A0 3 - - - - OPAMP0_INN CURA.N - - - 4 ANA_1 / ADC0_B0 - - - - 5 P4_16 CURB.P FlexIO GPIO • USB1_OTG_PWR • FlexIO header J20, pin 21 6 P0_14 ADC - - Arduino J2 connector pin 3 (R949) 7 OPAMP1_INN CURB.N - - - 8 P0_22 ADC - - Arduino J2 connector pin 5 (R951) 9 P4_20 CURC.P FlexIO - FlexIO header J20, pin 25 10 P0_15 ADC - - - 11 OPAMP2 INN CURC.N - - - 12 P0_23 ADC - - - 2.13 FlexIO header On the MCX-N9XX-EVK board, one 28-pin FlexIO header is provided to support the LCD display and camera applications. Table 27 describes the pinout of the FlexIO header. The FlexIO header is intended to support the Mikroe TFT Proto 5” Capacitive display and the LCD-PAR-S035 display. These displays support 3 V I/O only, therefore, care must be taken to ensure that all pins used on this connector are configured for 3V3 operation (this includes Ports 0, 1, 2 and 4). Many signals on the FlexIO connector are shared signals (most notably with the M.2 connector). Before using the FlexIO connector with other modules, be sure to check the schematics to determine if there are overlapping signals with the other modules intended to be used and that the necessary FlexIO signals are correctly selected via the zero-ohm resistor selections. Note that the FlexIO connections are connected by default. Table 27. FlexIO header J20 pinout Pin number Net name GPIO Function Potential conflict 1 P3V3 - - - 2 GND - - - 3 I2C2_SCL / SIOC P4_1 I2C SCL - 4 I2C2_SDA / SIOD P4_0 I2C SDA - 5 LCD_INT P4_6 Interrupt pin - 6 LCD_GPIO P1_11 General-purpose I/O pin • Accelerometer sensor (I3C1_ PUR) UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 39 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual Table 27. FlexIO header J20 pinout...continued Pin number Net name GPIO Function Potential conflict • Debug trace connector (J11, TRACED3) 7 LCD_RST P4_7 LCD reset pin - 8 LCD_DC P0_7 LCD clock pin M.2 connector (pin 20) 9 LCD_CS P0_12 LCD chip select pin - 10 FXIO0_D1/LCD_WR P0_9 Data line / LCD write pin M.2 connector (pin 54) 11 FXIO0_D0/LCD_RD P0_8 Data line / LCD read pin M.2 connector (pin 56) 12 LCD_TE P0_13 LCD control pin - 13 FXIO0_D16/LCD_D0 P2_8 Data line - 14 FXIO0_D17/LCD_D1 P2_9 Data line - 15 FXIO0_D18/LCD_D2 P2_10 Data line - 16 FXIO0_D19/LCD_D3 P2_11 Data line - 17 FXIO0_D20/LCD_D4 P4_12 Data line • Arduino connector J4 pin 1 / J1 pin 13 / P0_21 • USB0_VBUS_DET 18 FXIO0_D21/LCD_D5 P4_13 Data line Arduino connector J1 pin 3 19 FXIO0_D22/LCD_D6 P4_14 Data line - 20 FXIO0_D23/LCD_D7 P4_15 Data line - 21 FXIO0_D24/LCD_D8 P4_16 Data line • Arduino connector J4 pin 5 / P0_4 • USB1_OTG_PWR 22 FXIO0_D25/LCD_D9 P4_17 Data line USB1_OTG_OC 23 FXIO0_D26/LCD_D10 P4_18 Data line - 24 FXIO0_D27/LCD_D11 P4_19 Data line - 25 FXIO0_D28/LCD_D12 P4_20 Data line Arduino connector J4 pin 9 / P1_12 26 FXIO0_D29/LCD_D13 P4_21 Data line - 27 FXIO0_D30/LCD_D14 P4_22 Data line - 28 FXIO0_D31/LCD_D15 P4_23 Data line - 2.14 mikroBUS headers Table 29 and Table 28 describe the pinout of the mikroBUS headers (J19 and J22). Table 28. J19 header pinout Pin number Net Name GPIO Functions Potential conflict 1 AN ANA_6 Analog pin - 2 RST MCU_RESET_B Reset pin - 3 CS P0_27 SPI chip select line • Arduino connector (J2) pin 6 UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 40 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual Table 28. J19 header pinout...continued Pin number Net Name GPIO Functions Potential conflict • MCU-Link SPI PCS • Arduino connector (J2) pin 12 • MCU-Link SPI SCK 4 SCK P0_25 SPI clock line 5 MISO P0_26 SPI slave output line • Arduino connector (J2) pin 10 • MCU-Link SPI SDI 6 MOSI P0_24 SPI slave input line • Arduino connector (J2) pin 8 • MCU-Link SPI SDO 7 3V3 P3V3 3.3 V power line - 8 GND GND Ground - Table 29. J22 header pinout Pin No. Net name GPIO Functions Potential conflict 1 PWM P1_23 PWM output line Arduino connector (J1) pin 8 2 INT P0_10 Hardware interrupt line Arduino connector (J2) pin 4 3 RX P4_3 UART receive line • M.2 connector (J12) pin 20 • Arduino connector (J1) pin 2 4 TX P4_2 UART transmit line • M.2 connector (J12) pin 22 • Arduino connector (J1) pin 4 5 SCL P4_1 I2C clock line - 6 SDA P4_0 I2C data line - 7 5V0 P5V0 5 V power line - 8 GND GND Ground - 2.15 Tamper I/O header The MCX-N9XX-EVK provides a header for the Tamper I/O. This is to demonstrate the security features of the MCX N94x device. Table 30 describes the tamper header (JP42) pinout. Table 30. Tamper I/O header connections Pin No. GPIO Function Potential conflict 1 - VDD_BAT - 2 - GND - 3 P5_6 Tamper 4 - 4 P5_7 Tamper 5 - 5 P5_8 Tamper 6 - 6 P5_9 Tamper 7 - UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 41 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual 2.16 Board errata • Incorrect device type - Boards with devices marked "PMCXN947" may report an incorrect device type in the SYSCON->DEVICE_TYPE field. • Erroneous HVD assertion - Boards with devices marked "PMCXN947" may assert HVD events if VDD is greater than 3.5 V. This applies only to configurations that supply VDD externally. • EdgeLock 2GO service not provisioned - Boards with devices marked "PMCXN947" do not have the proper provisioning for the EdgeLock 2GO service. If this service is required, contact your local field applications engineer (FAE) or sales representative for assistance. • Wakeup times may be faster than expected - Boards with devices marked "PMCXN947" may exhibit faster wakeup times than qualified "MCXN947" devices. • Incorrect LDO_SYS output capacitance - Boards with devices marked "PMCXN947" do not have the required 0.9 µF - 2.1 µF of capacitance. As a result, a false HVD / LVD event may occur. No other functional impacts are known. 2.17 Board operating conditions The operating temperature range for the MCX-N9XX-EVK board is -40 ℃ to +105 ℃. The MCX N94x device supports up to 105 ℃. See MCX N94x, N54x Product Family Data Sheet for more details on device operating conditions. 3 MCU-Link OB debug probe This section describes the MCU-Link onboard (OB) debug probe, its features, how to install software support for it, and how to update its firmware. 3.1 MCU-Link overview MCU-Link is a debug probe architecture jointly developed by NXP and Embedded Artists. The MCU-Link architecture is based on the LPC55S69 MCU, which is based on the Arm Cortex-M33 core. The MCU-Link architecture is configurable to support different debug feature options, and to support both standalone probes (such as MCU-Link Pro) and for use on-board evaluation boards such as MCX-N9XX-EVK. These on-board implementations are referred to as MCU-Link OB. The MCX-N9XX-EVK board implements a subset of the MCU-Link architecture features, as described in Section 3.2. For more information on MCU-Link visit MCU-Link Debug Probe Architecture. The MCU-Link OB on the MCX-N9XX-EVK board is factory programmed with the firmware based on the NXP CMSIS-DAP protocol. The firmware also supports all other features supported in the hardware. A custom version of the J-Link firmware to make MCU-Link OB compatible with J-Link LITE is also available. However, this firmware version supports only limited features, including debug/SWO and VCOM. For information on how to update the firmware, see Section 3.5. 3.2 Supported MCU-Link features MCU-Link includes several mandatory and optional features. Table 31 summarizes the MCU-Link features supported on the MCX-N9XX-EVK board. Table 31. Supported MCU-Link features Feature Description Serial wire debug (SWD) / serial wire debug trace output (SWO) Allows SWD-based debugging with SWO for profiling and/or low overhead debug standard I/O communication UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 42 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual Table 31. Supported MCU-Link features...continued Feature Description Virtual communication (VCOM) serial port Adds a serial COM port on the host computer, and connects it to the target MCU by using MCU-Link as a USB-to-UART bridge USB serial input/output (USBSIO [1] Adds a USB serial I/O port on the host computer, and connects it to the target MCU by using MCU-Link as a USB-to-SPI bridge or USB-to-I2C bridge External debug probe support External target support Allows debugging the target MCU (MCX N94X) using an external debug probe, instead of MCU-Link. Support for an external debug probe is enabled by disabling the SWD feature. While using an external debug probe, the VCOM and USBSIO features can be used. [1] Allows debugging an external target MCU using MCU-Link Energy/power/current/voltage consumption [1] measurement (MCUXpresso IDE only) [1] Allows onboard measurement of current drawn by the target MCU J-Link firmware does not support this feature.) 3.3 Supported debug scenarios In the MCX-N9XX-EVK board, the MCU-Link debug probe target can be either the MCX N94X MCU or an external target compliant with MCU-Link. The board also allows to use an external debugger for debugging the MCX N94X MCU, in place of the MCU-Link debug probe. Table 32 describes the debug scenarios supported on the MCX-N9XX-EVK board. Table 32. Supported debug scenarios Debug scenario Feature support Jumper / connector settings Use MCU-Link as a debugger for the target MCU (MCX N94X) SWD is enabled JP6 must be open VCOM is enabled JP19 must be open USBSIO is enabled JP5 must be open Target selection supported JP22 must be open Target power selection supported JP12 Pin 1-2 must be shorted SWD is disabled • JP6 must be shorted • Connect an external debugger to the target MCU SWD connector J11 VCOM is enabled JP19 must be open USBSIO is enabled JP5 must be open Target selection supported JP22 must be open Target power selection supported JP12 Pin 1-2 must be shorted SWD is enabled • JP6 must be open • Connect an external target MCU to the target MCU SWD connector J11 VCOM is not supported JP19 must be shorted USBSIO is not supported JP5 must be shorted Use an external debugger to debug the target MCU (MCX N94X) Use MCU-Link as a debugger for an external target MCU UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 43 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual Table 32. Supported debug scenarios...continued Debug scenario Feature support Jumper / connector settings Target selection supported JP22 must be shorted Target power selection supported • JP12 Pin 1-2 shorted: external target MCU gets power from the board • JP12 Pin 2-3 shorted: external target MCU uses its own power 3.4 MCU-Link host driver and utility installation The MCU-Link debug probe is supported on Windows 10/11, MacOS X, and Ubuntu Linux platforms. The probe uses standard OS drivers. For Windows, the installation program also includes information files to provide userfriendly device names. Support for MCU-Link can be enabled using the Linkserver utility, which is an NXP GDB server and flash utility that supports many NXP debug probes. Running the Linkserver installer also installs all the drivers and a firmware update utility required for MCU-Link. NXP recommends you to use the Linkserver utility for installing the MCU-Link drivers and firmware update utility, unless you are using MCUXpresso IDE version 11.6.1 or earlier. For more details on this utility, refer https:// nxp.com/linkserver. Note: Installing the LinkserServer utility (using the Linkserver installer) only installs the required device drivers. LinkServer does not update the firmware, but the LinkerServer installation package includes the utilities that are used to update the firmware. In case you are using MCUXpresso IDE version 11.6.1 or earlier, you must install the firmware update utility version 2.263, which is not included in the LinkServer installation. If you do not use the Linkserver utility, follow the steps below to install the firmware MCU-Link update utility and information files: 1. Visit the board page on the NXP website. 2. Go to the Design Resources > Software section. Under the Development Software category, MCU-Link installation packages for Windows, MacOS, and Linux platforms are available. 3. Download the MCU-Link installation package applicable to your host OS. 4. Run the installer program (for Windows) or install the firmware package (for MacOS or Linux). It is recommended to update to the latest version of the firmware as it might have changed since your MCU-Link was manufactured. Before updating the firmware by using the steps listed in Section 3.5, check the compatibility between the MCULink firmware and the MCUXpresso IDE. Table 33 shows the compatibility between the MCU-Link firmware and the MCUXpresso IDE. Table 33. Compatibility between MCU-Link firmware and MCUXpresso IDE MCU-Link firmware version USB driver type CMSIS-SWO support FreeMASTER support via SWD / JTAG USB bridge V1.xxx and V2.xxx HID No Yes Yes MCUXpresso 11.3 or later V3.xxx (up to and including V3.108) WinUSB No Yes FreeMASTER V3.2.2 or later MCUXpresso 11.7.0 or later V3.117 and later WinUSB Yes Yes FreeMASTER V3.2.2 or later MCUXpresso 11.7.1 or later UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 Supported MCUXpresso IDE versions © 2024 NXP B.V. All rights reserved. 44 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual 3.5 Updating MCU-Link firmware Before updating the firmware, MCU-Link must be powered up in ISP mode. Follow the below steps to configure MCU-Link in ISP mode and update MCU-Link firmware. 1. Disconnect the board from the host computer, short jumper JP24, and reconnect the board. The red MCULink status D10 LED lights up and stays on. For the D10 LED details, see Section 3.11. 2. Navigate to the MCU-LINK_installer_Vx_xxx directory, where Vx_xxx indicates the version number, for example, V3.108. 3. Follow the instructions in the readme.txt to find and run the firmware update utilities for CMSIS-DAP or JLink versions. 4. Disconnect the board from the host computer, open jumper JP24, and reconnect the board. The board enumerates on the host computer as a WinUSB or HID device (depending on the firmware version). Note: • Starting version V3.xxx, the MCU-Link firmware uses WinUSB instead of HID for higher performance; however, it is not compatible with MCUXpresso IDE versions earlier than 11.7.0. • To enable SWO-related features in non-NXP IDEs, CMSIS-SWO support was introduced in firmware version V3.117. 3.6 Using MCU-Link with development tools The MCU-Link debug probe can be used with IDEs supported within the MCUXpresso ecosystem, such as MCUXpresso IDE, MCUXpresso for Visual Studio Code, IAR Embedded Workbench, and Arm Keil MDK. 3.6.1 Using MCU-Link with MCUXpresso IDE The MCUXpresso IDE recognizes any type of MCU-Link probe that uses either CMSIS-DAP or J-Link firmware. When you start a new debug session, the IDE checks for all the available debug probes. For all the probes it finds, the IDE displays the probe types and unique identifiers in the Probes discovered dialog box. If a debug probe requires a firmware update, the probe is displayed with a warning in the Probes discovered dialog box. For each such probe, the latest firmware version is indicated and a link to download the latest firmware package is provided. To update the firmware for the MCU-Link debug probe, see the instructions provided in Section 3.5. You are advised to use the latest MCU-Link firmware to take the benefit of the latest functionality. However, the MCU-Link firmware version you can use depends on the MCUXpresso IDE version you are using. Table 33 shows the compatibility between the MCU-Link firmware and the MCUXpresso IDE. 3.6.2 Using MCU-Link with MCUXpresso for Visual Studio Code The MCU-Link debug probe can be used with the MCUXpresso for Visual Studio Code extension from NXP. This extension uses the Linkserver debug server. To work with MCUXpresso for Visual Studio Code, install the Linkserver utility using the MCUXpresso Installer tool or as described in Section 3.4. For more details on MCUXpresso for Visual Studio Code, visit the MCUXpresso for Visual Studio Code page. 3.6.3 Using MCU-Link with third-party IDEs The MCU-Link debug probe can be used with IAR Embedded Workbench and Arm Keil MDK, and may also work with other third-party tools. Refer to the documentation for these products, covering the use of generic CMSIS-DAP probes or J-Link probes (depending on the firmware image you are using). UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 45 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual 3.7 MCU-Link USB connector The MCX-N9XX-EVK board has a universal serial bus (USB) 2.0 micro-B connector J5 (Hirose Electric ZX62DB-5PA8(30)). This USB connector is used to create MCU-Link high-speed USB connection with the host computer. The MCU-Link receives power when the USB connector J5 is plugged into a USB host. 3.8 Connecting to a target through a USB-to-UART bridge The MCU-Link supports the VCOM serial port feature, which adds a serial COM port on the host computer, and connects it to the target MCU by using MCU-Link as a USB-to-UART bridge. In the MCX-N9XX-EVK board, MCU-Link LPC55S69 is connected to the P1_8 and P1_9 pins of the target MCU through a voltage translator U21. Note: The P1_8 and P1_9 pins are also the default UART ISP pins to allow for ISP connection through the MCULink VCOM. The voltage translator U21 enables communication between MCU-Link and the target MCU, by shifting voltage levels of signals between the two devices from 3V3 to VDD_BRD and vice versa. To use MCU-Link as a USB-to-UART bridge, ensure that the JP19 jumper is open and connect the J5 connector on the board to the USB port of the host computer. When you boot the MCX-N9XX-EVK board, a VCOM port with the name MCU-Link Vcom Port (COMxx) is enumerated on the host computer, where “xx” may vary from one computer to another. Each MCU-Link based board has a unique VCOM number associated with it. The P1_8 and P1_9 pins are shared with the trace debug header (J11). If the trace functionality through these pins is desired, ensure the following resistor and jumper configuration: • Resistors R19 and R20 are populated • Resistors R17 and R18 are depopulated • Jumper JP19 is shorted (to disable the VCOM feature) 3.9 Connecting to a target through a USB-to-SPI or USB-to-I2C bridge MCU-Link supports the USB serial input/output (USBSIO) port feature, which adds a USB serial I/O port on the host computer, and connects it to the target MCU by using MCU-Link as a USB-to-SPI bridge or USB-to-I2C bridge. Support for the USBSIO feature can be enabled on the host computer using the libusbsio library, which is a free host library from NXP for Windows/Linux/MacOS systems. For more details on the libusbsio library, see https://www.nxp.com/libusbsio. In the MCX-N9XX-EVK board, MCU-Link is connected to the P0_[27:24] pins of the target MCU using the FC1 SPI interface connection, through a voltage translator U22. The voltage translator enables the communication between MCU-Link and the target MCU, by shifting voltage levels of signals between the two devices from 3V3 to VDD_BRD and vice versa. The SPI interface connections for this functionality are shared with the SPI connections on the Arduino compatible connectors and Mikroe connector connections. To prevent contention with these connectors, zeroohm resistors are used to isolate the connections from the MCU-Link circuit by default. A USB-to-SPI bridge can be used to emulate the host system. To use MCU-Link as a USB-to-SPI bridge, the board must be connected to the host computer through a USB cable from its J5 connector. Also, ensure the following resistor and jumper configuration on the board: • Resistors R11, R12, R13, and R14 are populated • Jumper JP5 is open (to enable the USBSIO bridge feature for SPI; by default JP5 is shorted) UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 46 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual In the MCX-N9XX-EVK board, MCU-Link is also connected to the P4_[1:0] pins of the target MCU using the FC2 I2C interface connection, through a voltage translator U23. The voltage translator enables communication between MCU-Link and the target MCU, by shifting voltage levels of signals between the two devices from 3V3 to VDD_P4 and vice versa. A USB-to-I2C bridge can be used to emulate the host system / board peripherals. To use MCU-Link as a USBto-I2C bridge, the board must be connected to the host computer through a USB cable from its J5 connector. Also, ensure the following resistor and jumper configuration on the board: • Zero-ohm resistors R46 and R47 are populated • Jumper JP25 is shorted (to enable USBSIO bridge feature for I2C) The USBSIO feature can be disabled for SPI or I2C so that the target MCU SPI/I2C port can be used for other purposes. Disabling this feature instructs the firmware not to enumerate the USB endpoint for USBSIO (which is called “MCU-Link LPCSIO” for backward compatibility reasons). Disabling the USBSIO feature also frees more USB bandwidth for the SWO profiling and energy measurement features of MCU-Link. The USBSIO feature can be disabled for I2C by opening jumper JP25. 3.10 Measuring target MCU power consumption The MCX-N9XX-EVK board includes circuitry to measure voltage, current, and power/energy consumption for the target MCU (MCX N94x) using the onboard MCU-Link debug probe. This measurement data can be analyzed and displayed using MCUXpresso IDE version 11.5.1 or later. For more details on the MCUXpresso IDE, see https://www.nxp.com/mcuxpresso/ide. It is recommended to use the latest MCU-Link firmware. If the latest firmware version is not installed, then the MCUXpresso IDE shows a message indicating that the firmware version is not the latest one. For instructions on updating MCU-Link firmware, see Section 3.5. The energy monitor circuit used on the MCX-N9XX-EVK board measures the current of all supplies on the MCU_PWR net (only critical supplies are sourced by MCU_PWR). The following is the list of power supplies for which current can be measured: • Core supplies (DCDC_CORE input via VDD_DCDC net or LDO_CORE input via VDD_CORE net) • System supply (LDO_SYS input via VDD_LDO_SYS_IN net, provided it is not bypassed by jumper JP36) • VDD via VDD_MCU net • VBAT Domain via VDD_BAT net This allows for the measurement of all necessary power rails to be measured and allows for the measurement of DCDC and LDO power modes. Note: All of the above power rails must be at the same voltage level to be included in the measurement circuit. To use the Energy Monitor circuit, jumpers JP29, JP33, JP32, and JP38 must be populated. JP38 can be used to select either P3V3 or P1V8 nets to power MCU_PWR. This allows for 3.3 V or 1.8 V measurements to be made. For more information on the Energy Monitor circuit and its functionality, see the MCU-Link Pro standalone debug probe user manual. 3.11 MCU-Link status LEDs The MCX-N9XX-EVK board has seven status indicator LEDs for MCU-Link. Table 34 lists these LEDs and describes how each LED behaves in different MCU-Link modes. These LEDs are shown in Figure 3. UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 47 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual Table 34. MCU-Link LEDs Part identifier LED name / color MCU-Link mode Normal mode (with CMSIS-DAP Normal mode (with Jfirmware) Link firmware) Firmware update (ISP) mode D8 USB COMM / green Lights up after successful USB Remains OFF enumeration at startup. Afterward, the LED stays ON. Remains OFF D9 SWO ACT / green Indicates if serial wire debug trace output (SWO) data is being received from the target MCU Remains OFF Remains OFF D10 Status / red Indicates heartbeat (fades in/out repeatedly), with SWD activity overlaid. The LED blinks rapidly at startup, if an error occurs. Remains OFF Lights up when MCU-Link target (LPC55S69) boots in ISP mode D11 VCOM ACT / green Indicates if the VCOM port is transmitting/receiving data Lights up when MCU-Link boots, and blinks when debug activity happens Remains OFF D12 FUNC / green Reserved for future use Remains OFF Remains OFF D13 SIO / green Indicates if USBSIO bridge traffic is present Remains OFF Remains OFF D14 NRG / green Indicates if energy measurement communication is happening between the target MCU and MCU-Link Remains OFF Remains OFF 3.12 MCU-Link GPIO header Table 35 describes the MCU-Link GPIO header (J13) pinout. Table 35. MCU-Link GPIO header Pin number MCU-Link GPIO 1 P1_1 2 P1_9 3 P1_20 4 P1_21 5 P1_31 6 P1_7 4 Related documentation Table 36 lists and explains the additional documents and resources that you can refer to for more information on the MCX-N9XX-EVK 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. UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 48 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual Table 36. Related documentation Document Description Link / how to access MCX N94x, N54x Product Family Data Sheet It provides information about electrical characteristics, hardware design considerations, and ordering information MCXNx4x.pdf MCX Nx4x Reference Manual It is intended for the board-level product designers MCXNx4xRM.pdf and product software developers who want to develop products with MCX Nx4x MCU MCX Nx4x Chip Errata (MCXNx4x_xP02G) Lists the details of all known silicon errata for the MCX Nx4x device. Contact NXP FAE or sales representative MCX-N9XX-EVK design files A zip file including *.DSN, ASY, Layout, schematic Contact NXP FAE or files, and so on sales representative LPC55S6x/LPC55S2x/LPC552x User manual (UM11126) Intended for system software and hardware developers and application programmers who want to develop products with LPC55S6x/ LPC55S2x/LPC552x MCU UM11126.pdf 5 Acronyms Table 37 lists and defines the acronyms used in this document. Table 37. Acronyms Term Description ADC Analog-to-digital converter CAN Controller area network DNP Do not populate ESR Equivalent series resistance GPIO General-purpose input/output I2C Inter-integrated circuit I3C Improved inter-integrated circuit ISP In-system programming LPI2C Low-power inter-integrated circuit NMI Non-maskable interrupt PCB Printed-circuit board PHY Physical interface of the OSI model PMIC Power management-integrated circuit POR Power-on reset PWM Pulse width modulation QSPI Quadruple serial peripheral interface RGMII Reduced gigabit media-independent interface RTC Real-time clock SDHC Secured digital host controller SPI Serial peripheral interface UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 49 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual Table 37. Acronyms...continued Term Description SWD Serial wire debug SWO Serial wire debug trace output UART Universal asynchronous receiver/transmitter USB Universal serial bus USBSIO USB serial input/output VCOM Virtual communication WUU Wake-up unit 6 Revision history Table 38 summarizes revisions to this document. Table 38. Revision history Document ID Release date Description UM12036 v.1 20 January 2024 Initial public release UM12036 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 20 January 2024 © 2024 NXP B.V. All rights reserved. 50 / 51 UM12036 NXP Semiconductors MCX-N9XX-EVK Board User Manual Contents 1 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 2 2.1 2.1.1 2.1.2 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11 2.12 2.13 2.14 2.15 2.16 2.17 3 3.1 3.2 3.3 3.4 3.5 3.6 3.6.1 3.6.2 3.6.3 3.7 3.8 3.9 3.10 3.11 3.12 4 5 6 MCX-N9XX-EVK overview ............................... 2 Block diagram ....................................................2 Board features ................................................... 3 Board kit contents ..............................................4 Board pictures ................................................... 4 Connectors .........................................................6 Jumpers ............................................................. 7 Push buttons ....................................................12 LEDs ................................................................ 13 MCX-N9XX-EVK functional description ....... 13 Power supplies ................................................ 13 Power supply configuration ............................. 19 DC-DC inductor ............................................... 20 Clocks .............................................................. 21 USB interface .................................................. 22 SD card interface .............................................23 Flash memory interface ................................... 25 Ethernet interface ............................................ 27 Accelerometer sensor interface ....................... 28 I3C interface .................................................... 29 FlexCAN interface ............................................29 Visible light sensor interface ............................31 M.2 interface ....................................................31 Arduino compatible I/O headers ...................... 35 FlexIO header ..................................................39 mikroBUS headers ...........................................40 Tamper I/O header .......................................... 41 Board errata .....................................................42 Board operating conditions .............................. 42 MCU-Link OB debug probe ...........................42 MCU-Link overview ..........................................42 Supported MCU-Link features ......................... 42 Supported debug scenarios .............................43 MCU-Link host driver and utility installation ..... 44 Updating MCU-Link firmware ...........................45 Using MCU-Link with development tools ......... 45 Using MCU-Link with MCUXpresso IDE .......... 45 Using MCU-Link with MCUXpresso for Visual Studio Code .......................................... 45 Using MCU-Link with third-party IDEs ............. 45 MCU-Link USB connector ............................... 46 Connecting to a target through a USB-toUART bridge .................................................... 46 Connecting to a target through a USB-toSPI or USB-to-I2C bridge ................................ 46 Measuring target MCU power consumption .....47 MCU-Link status LEDs .................................... 47 MCU-Link GPIO header .................................. 48 Related documentation ................................. 48 Acronyms ....................................................... 49 Revision history .............................................50 © 2024 NXP B.V. All rights reserved. For more information, please visit: https://www.nxp.com Date of release: 20 January 2024 Document identifier: UM12036 ">
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Key features
Dual Arm Cortex-M33 cores running up to 150 MHz
Integrated Neural Processing Unit (NPU)
64-Mbit external serial flash
Onboard MCU-Link debug probe with energy monitoring
Arduino and FRDM ecosystem compatibility
Mikroe click boards support
Onboard Ethernet and CAN PHY
Frequently asked questions
It is a full-featured evaluation and development board for the MCX N94x family of devices.
The LPC55S69 MCU is used for the onboard MCU-Link debug probe.
The board includes external serial flash, accelerometer, temperature sensor, visible light sensor, CAN PHY, Ethernet PHY, SDHC circuit, RGB LED, touch slider, USB circuits, and push buttons.
