NXP FRDM-IMX93 Development Board User Manual

The FRDM-IMX93 board features a variety of interfaces and
components, including USB C connectivity, DRAM memory, mass storage
options, camera and display interfaces, Ethernet connectivity, and
various I/O expanders. Familiarize yourself with the board layout
and components before use.

3. Usage Guidelines:

Once the board is set up and powered on, you can start exploring
the capabilities of the i.MX 93 processor by running sample
applications or developing your own projects. Refer to the provided
documentation for programming guidelines and examples.

Frequently Asked Questions (FAQ):

Q: What are the main features of the FRDM-IMX93 board?

A: The main features include a dual Arm Cortex-A55 + Arm
Cortex-M33 core processor, USB interfaces, DRAM memory, mass
storage options, camera and display interfaces, Ethernet
connectivity, and various I/O expanders for enhanced
functionality.

Q: How can I connect peripherals to the FRDM-IMX93 board?

A: You can connect peripherals via the available interfaces such
as USB ports, HDMI for displays, Ethernet for networking, and
various I/O expanders for additional functionalities. Refer to the
user manual for specific connection instructions.

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FRDM-IMX93 Board User Manual
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Document information

Information

Content

Keywords

i.MX 93, FRDM-IMX93, UM12181

Abstract

The FRDM i.MX 93 development board (FRDM-IMX93 board) is a low-cost platform designed to show the most commonly used features of the i.MX 93 applications processor in a small and lowcost package.

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UM12181
FRDM-IMX93 Board User Manual

USB C CONNECTIVITY

1 FRDM-IMX93 overview

The FRDM i.MX 93 development board (FRDM-IMX93 board) is a low-cost platform designed to show the most commonly used features of the i.MX 93 Applications Processor in a small and low-cost package. The FRDMIMX93 board is an entry-level development board, which helps developers to get familiar with the processor before investing a large amount of resources in more specific designs.
This document includes system setup and configurations, and provides detailed information on the overall design and usage of the FRDM board from a hardware system perspective.

1.1 Block diagram
Figure 1 shows the FRDM-IMX93 block diagram.

MIPI DSI x4 lane

LVDS to HDMI

USB C PD

SYS PWR

PMIC NXP PCA9451

MIPI DSI PWR

DRAM LPDDR4/X: 2 GB < x16 b >

x16 bits DRAM

LVDS TX SD3
UART5/SAI1
USB2

MAYA-W2 WIFI/BT/802.15.4 SW
M.2 NGFF KEY-E:WiFi/BT…
# NXP Wi-Fi/BT 1×1 WiFi 6 (802.11ax)

SW USB 2.0 DRP

USB 2.0 USB TYPE-A

eMMC 5.1 32 GB HS400
Camera x1 MIPI CSI

x8 SDHC SD1
x2 LANE MIPI CSI

i.MX93
ARM: x2 CORTEX-A55 (1.8 GHz) x1 CORTEX-M33 (250 MHz)
ML: 0.5 TOPs Ethos-U65 NPU (1 GHz)

USB 2.0 DRP USB1

USB 2.0 USB TYPE-C

RGMII

Gigabit NET

x2 ENET

YT8521SH-CA

# AVB, 1588, and IEEE 802.3az

CANFD

CAN NXP TJA1051T/3

HDR

M.2
RJ45

USB C

ADC: HDR CN

ADC x12 bit
RGB-LED BUTTON

ADC PWM GPIO

UART PDM

UART to USB

CORTEX0-A55/CORTEX-M33 debug Remote debug support

MQS

LINE OUT

I2C SAI3 I2C

RTC

SENSOR

SD2 MicroSD
SD3.0 MicroSD
Figure 1.FRDM-IMX93 block diagram

SWD

I2C/SPI/UART…

SWD DEBUG
HDR

EXP CN UART/I2C/SPI.. # Audio HAT/RFID/PDM…
HDR

1.2 Board features
Table 1 lists the features of FRDM-IMX93.

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Table 1.FRDM-IMX93 features

Board feature

Target processor feature used

Description

Applications processor

The i.MX 93 applications processor features a dual Arm Cortex-A55 + Arm Cortex-M33 core speeding up to 1.7 GHz, a neural processing unit (NPU) of 0.5 TOPS Note: For more detail on the i.MX 93 processor, see the i.MX 93 Applications Processor Reference Manual.

USB interface

USB 2.0 high-speed host and · x1 USB 2.0 Type C connector

device controller

· x1 USB 2.0 Type A connector

DRAM memory DRAM controller and PHY 2 GB LPDDR4X (Micron MT53E1G16D1FW-046 AAT:A)

Mass storage

uSDHC

· 32 GB eMMC5.1 (FEMDRM032G-A3A55) · MicroSD card connector (SD3.0 supported)

Boot configuration

· Default boot mode is single boot from the eMMC device · Board also supports SD card boot

Camera interface MIPI CSI

One CSI (x2 data lane) interface, FPC cable connector (P6)

Display interface MIPI DSI

x4 data lane MIPI DSI interface, FPC cable connector (P7)

HDMI

x4 data lane LVDS to HDMI converter chip (IT6263) connected to HDMI connector, P5

Ethernet interface Two ENET controllers

· 10/100/1000 Mbit/s RGMII Ethernet with one RJ45 connector with TSN support (P3) connected with external PHY, YT8521
· 10/100/1000 Mbit/s RGMII Ethernet with one RJ45 connector (P4) connected with external PHY, YT8521

I/O expanders

CAN, I2C/I3C, analog-todigital converter (ADC)

One 10-pin 2×5 2.54 mm connector P12 provides: · One high-speed CAN transceiver TJA1051GT/3 connection · 3-pin header for I2C/I3C expansion · Two-channel ADC support

Onboard Wi-Fi SDIO, UART, SPI, SAI

Onboard Wi-Fi 6 / Bluetooth 5.4 module

Wi-Fi/Bluetooth interface

USB, SDIO, SAI, UART, I2C, and GPIO

One M.2/NGFF Key E mini card 75-pin connector, P8, supporting USB, SDIO, SAI, UART, I2C, and Vendor-defined SPI interfaces Note: By default, these signals are connected with the onboard Wi-Fi module, however, to use this M.2 slot, you must rework resistors (see Table 15 ).

Audio

MQS

MQS support

Debug interface

· USB-to-UART device, CH342F · One USB 2.0 Type-C connector (P16) of CH342F provides two COM
ports:
The first COM port is used for Cortex A55 system debug The second COM port is used for Cortex M33 system debug · Serial Wire Debug (SWD), P14

Expansion port

One 40-pin dual-row pin header for I2S, UART, I2C, and GPIO expansion

Power

· One USB 2.0 Type-C connector for power delivery only · PCA9451AHNY PMIC · Discrete DCDC/LDO

PCB

FRDM-IMX93: 105 mm × 65 mm, 10-layer

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Table 1.FRDM-IMX93 features…continued

Board feature

Target processor feature used

Orderable part number

Description FRDM-IMX93

1.3 Board kit contents
Table 2 lists the items included in the FRDM-IMX93 board kit.
Table 2.Board kit contents Item description FRDM-IMX93 board USB 2.0 Type-C Male to Type-A Male assembly cable FRDM-IMX93 Quick Start Guide

1.4 Board pictures
Figure 2 shows the top-side view of the FRDM-IMX93 board.

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FRDM-IMX93 Board User Manual
Quantity 1 2 1

Figure 2.FRDM-IMX93 top-side view Figure 3 shows the connectors available on the top side of the FRDM-IMX93 board.

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GbE RJ45 (P4, P3)

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FRDM-IMX93 Board User Manual

RTC PWR (P18)

USB Type A (P17)
Reset (P19)

HDMI (P5)

MQS (P15)

USB Type C (P2)

NXP custom interface (P12)
SWD (P14)

USB Type C USB Type C

PWR input

DBG

(P1)[1]

(P16)

MIPI-CSI (P6)
MIPI-DSI (P7)

EXPIO (P11)

[1] – USB Type C PWR input (P1) shown in the figure is the only power supply port, and must always be supplied for system running.

Figure 3.FRDM-IMX93 connectors

Figure 4 shows the onboard switches, buttons, and LEDs available on the FRDM-IMX93 board.

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Boot config switch (SW1)

SW3 D614 D613

SW4

RGB LED (LED1) PWR
K1

Figure 4.FRDM-IMX93 onboard switches, buttons, and LEDs

Figure 5 shows the bottom-side view, and also highlights the connectors available at the bottom side of the FRDM-IMX93 board.

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Figure 5.FRDM-IMX93 bottom-side view

M.2 Key E (P8)

MicroSD (P13)

1.5 Connectors

See Figure 3 and Figure 5 for connectors position on the board. Table 3 describes the FRDM-IMX93 board connectors.

Table 3.FRDM-IMX93 connectors Part identifier Connector type

P1, P2, P16 USB 2.0 Type C

P3, P4

RJ45 jack

HDMI A connector

22-pin FPC connector

P9 (DNP)

U.FL connector

P10 (DNP)

U.FL connector

75-pin connector

P11

2×20-pin connector

P12

2×5-pin connector

Description USB connector Ethernet connectors HDMI connector MIPI CSI FPC connector MIPI DSI FPC connector RF antenna connector RF connector M.2 socket KEY-E GPIO expansion I/O connector

Reference section Section 2.19.2 Section 2.17 Section 2.16 Section 2.14 Section 2.15 Section 2.11 Section 2.11 Section 2.10 Section 2.18 Section 2.4

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Table 3.FRDM-IMX93 connectors…continued Part identifier Connector type

P13

MicroSD push- push

connector

P14

1×3-pin 2.54 mm connector

P15

3.5 mm headphone jack

P17

USB 2.0 Type A

P18

JST_SH_2P

P19

1×2-pin connector

Description MicroSD 3.0
SWD connector MQS connector USB connector RTC battery connector SYS_nRST connector

Reference section Section 2.8
Section 2.19.1 Section 2.6 Section 2.13 For detail, see the board schematic For detail, see the board schematic

1.6 Push buttons

Figure 4 shows the push buttons available on the board. Table 4 describes the push buttons available on FRDM-IMX93.

Table 4.FRDM-IMX93 push buttons

Part identifier

Switch name

Power button

K2, K3

User button

Description
The i.MX 93 applications processor supports the use of a button input signal to request main SoC power state changes (that is, ON or OFF) from the PMIC.
The ON/OFF button is connected to the ONOFF pin of the i.MX 93 processor.
· In the ON state: If the ON/OFF button is held longer than the debounce time, the power off interrupt is generated If the button is held longer than the defined max timeout (approx. 5 s), the state will transit from ON to OFF, and send PMIC_ON_ REQ signal to turn off the powers of PMIC
· In the OFF state: If the ON/OFF button is held longer than the OFF-toON time, the state will transit from OFF to ON, and send PMIC_ON_REQ signal to turn on the powers of PMIC
The User buttons are kept for customized use cases.

1.7 DIP switch
The following DIP switches are used on the FRDM-IMX93 board.
· 4-bit DIP switch SW1 · 2-bit DIP switch SW3 · 1-bit DIP switch SW4 If a DIP switch pin is:
· OFF pin value is 0 · ON pin value is 1 The following list describes the description and configuration of the DIP switches available on the board.

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· SW1 Provides control for boot mode configuration. For detail, see Section 2.5.
· SW3 Provides control for enabling or disabling the CAN interface signals, CAN_TXD (GPIO_IO25) and CAN_RXD (GPIO_IO27), on the board.

Table 5.SW3 configuration

Switch

Signal

Description

SW3[1]

CAN_TXD (GPIO_IO25)

ON (default setting): Enables CAN_TXD signal OFF: Disables CAN_TXD signal

SW3[2]

CAN_RXD (GPIO_IO27)

ON (default setting): Enables CAN_RXD signal OFF: Disables CAN_RXD signal

· SW4 Provides control for enabling or disabling the CAN split termination RC filter.

Table 6.SW3 configuration

Switch

Signal

SW4[1]

Description
ON (default setting): Enables RC termination filter (62 + 56 pF) and configures CAN bus for normal operation.
OFF: Disables RC termination filter for test mode.

1.8 LEDs

The FRDM-IMX93 board has light-emitting diodes (LEDs) to monitor system functions, such as power-on and board faults. The information collected from LEDs can be used for debugging purposes.
Figure 4 shows the LEDs available on the board.
Table 7 describes the FRDM-IMX93 LEDs.

Table 7.FRDM-IMX93 LEDs Part identifier LED color

D601

Red

LED name PWR LED

LED1

Red / Green / Blue RGB_LED

D613 D614

GREEN ORANGE

LED_GREEN LED_ORANGE

Description (When LED in ON)
Indicates 3.3 V power-on status. When 3.3 V is available on board, the D601 LED turns ON.
User application LEDs. Each of these LEDs can be controlled through a user application. · Red LED connects to target MPU pin GPIO_IO13 · Green LED connects to target MPU pin GPIO_IO04 · Blue LED connects to target MPU pin GPIO_IO12
· D613 ON WLAN status indicator. When ON, indicates that the WLAN connection is established.
· D614 ON Bluetooth status indicator. When ON, indicates that the Bluetooth connection is established.

2 FRDM-IMX93 functional description

This chapter describes the features and functions of the FRDM-IMX93 board. Note: For details of the i.MX93 MPU features, see i.MX 93 Applications Processor Reference Manual. The chapter is divided into the following sections:
· Section “Processor” · Section “Power supply” · Section “Clocks” · Section “I2C interface”

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· Section “Boot mode and boot device configuration” · Section “PDM interface” · Section “LPDDR4x DRAM memory” · Section “SD card interface” · Section “eMMC memory” · Section “M.2 connector and Wi-Fi/Bluetooth module” · Section “CAN interface” · Section “USB interface” · Section “Camera interface” · Section “MIPI DSI” · Section “HDMI interface” · Section “Ethernet” · Section “Expansion connector” · Section “Debug interface” · Section “Board errata”

2.1 Processor
The i.MX 93 applications processor includes dual Arm Cortex-A55 processors with speeds up to 1.7 GHz integrated with an NPU that accelerates machine learning inference. The general-purpose Arm Cortex-M33 running up to 250 MHz is for real-time and low-power processing. Robust control networks are possible via the CAN-FD interface. Also, dual 1 Gbit/s Ethernet controllers, one supporting time sensitive networking (TSN), drive gateway applications with low latency.
The i.MX 93 is useful for applications such as:
· Smart home · Building control · Contactless HMI · Commercial · Healthcare · Media IoT
Each processor provides a 16-bit LPDDR4/LPDDR4X memory interface and other interfaces for connecting peripherals, such as MIPI LCD, MIPI Camera, LVDS, WLAN, Bluetooth, USB2.0, uSDHC, Ethernet, FlexCAN, and multisensors.
For more detailed information about the processor, see the i.MX93 data sheet and i.MX 93 Applications Processor Reference Manual at https://www.nxp.com/imx93.

2.2 Power supply
The primary power supply to the FRDM-IMX93 board is VBUS_IN (12 V – 20 V) through USB Type-C PD connector (P1).
Four DC buck switching regulators are used:
· MP8759GD (U702) switches VBUS_IN supply to SYS_5V (5 V) power supply, which is input power supply for PCA9451AHNY PMIC (U701) and other discrete devices on the board.
· MP1605C (U723) switches VDD_5V supply to DSI&CAM_3V3 (3.3 V / 2 A) for MIPI CSI and MIPI DSI. · MP2147GD (U726) switches VDD_5V supply to VPCIe_3V3 (3.3 V / 4 A) for M.2 / NGFF module (P8). · MP1605C (U730) switches VPCIe_3V3 supply to VEXT_1V8 (3.3 V / 500 mA) for on-board Wi-Fi module
MAYA-W27x (U731).

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Figure 6 shows the FRDM-IMX93 power supply block diagram.

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FRDM-IMX93 Board User Manual

Figure 6.FRDM-IMX93 power supply Table 8 describes different power sources available on the board.

Table 8.FRDM-IMX93 power supply devices

Part

Manufacturing

identifier part number

designator

Part manufacturer

Power supply

U702

MP8759GD

Monolithic Power · DCDC_5V

Systems Inc.

· VSYS_5V

U726

MP2147GD

Monolithic Power VPCIe_3V3 Systems Inc.

Specifications Description

· 5 V at 8 A 3.3 V at 3 A

Supplies power to:
· PMIC PCA9451AHNY (U701) · NX20P3483UK USB PD and
Type-C switches (U710)
· DC buck MP2147GD (U726) for VPCIe_3V3
· DC buck MP1605C (U723) for DSI&CAM_3V3
· Load switch SGM2526 (U733) for VRPi_5V
· Load switch SGM2526 (U742) for VBUS_USB2_5V
· Input supply for switch-mode converter MP1605C (U730)

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Table 8.FRDM-IMX93 power supply devices…continued

Part

Manufacturing

identifier part number

designator

Part manufacturer

Power supply

Specifications Description
· Supply for WLAN and Bluetooth status indicating LEDs (D613 and D614)
· Supply for onboard Wi-Fi module u-blox MAYA-W27x (U731)

U723

MP1605C

Monolithic Power DSI&CAM_3V3 3.3 V at 2 A Systems Inc.

Supplies power to MIPI CSI (P6) and MIPI DSI (P7) interface

U730

MP1605C

Monolithic Power VEXT_1V8 Systems Inc.

1.8 V at 500 mA Supplies power to onboard Wi-Fi u-blox MAYA-W27x module

U701

PCA9451AHNY

NXP

BUCK2: LPD4/

Semiconductors x_VDDQ_0V6

· 0.6 V at 2000 Supplies power to VDDQ_DDR

power supply for CPU DRAM

PHY I/O (LPDDR4/X)

BUCK1/3: VDD_ · VOL (V): 0.8 VDD_SOC, power supply for SoC SOC_0V8[1][2] · Typ VOL (V): logic and Arm core
Dynamic voltage scaling (DVS) Note: Refer to SoC data sheet.

BUCK4: · VDD_3V3

3.3 V at 3000 mA

Supplies power to:
· MIPI DSI/LVDS · NVCC_GPIO, power supply for
GPIO when it is in 3.3 V mode
· VDD_USB_3P3 pin for USB PHY power
· eMMC 5.1 device · MicroSD · EEPROM · Ethernet ports (P3 and P4) · LVDS to HDMI converter · I2C IO expander PCAL6524
HEAZ (U725, I2C address: 0x22)
Power source for:
· ENET1_DVDD3 and ENET1_ AVDD3 supplies
· OVDD_3V3 for AVCC_3V3 supplies

BUCK5: · VDD_1V8

1.8 V at 2000 mA

Supplies to:
· LPD4/x_VDD1 · eMMC 5.1 device · LVDS to HDMI converter · VDD_ANA_1P8, analog core
supply voltage
· NVCC_WAKEUP, digital I/O supply

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Table 8.FRDM-IMX93 power supply devices…continued

Part

Manufacturing

identifier part number

designator

Part manufacturer

Power supply

BUCK6:
· LPD4/x_ VDD2_1V1

LDO1: NVCC_ BBSM_ 1V8

LDO4: VDD_ ANA_0 P8

LDO5: NVCC_SD

Load Switch: VSDs_3V3

U703

FDS4435 (Power SG MICRO Trench MOSFET) CORP

VDD_5V

U732 U733 U737
U742

SGM2525 (Load switch)
SGM2525 (Load switch)
TLV76033DBZR (Voltage regulator)

SG MICRO CORP
SG MICRO CORP
Texas Instruments

SGM2526 (Load switch)

SG MICRO CORP

VRPi_3V3
VRPi_5V
VCC_3V3_ DEBUG
VBUS_USB2_5 V

Specifications Description

1.1 V at 2000 mA

Supplies to: · VDD2_DDR, DDR PHY supply voltage

1.8 V at 10 mA NVCC BBSM I/O supply

0.8 V at 200 mA Analog core supply voltage

1.8 V / 3.3 V MicroSD card

3.3 V

MicroSD card

5 V / 2.5 A
3.3 V at 2.5 A 5 V at 2.5 A 3.3 V 5 V / 2.5 A

Supplies to: · 10-pin dual-row header (P12) · CAN transceiver through CAN_
VDD_5V · RGB LED Power source for: · HDMI_5V · DSI&CAM_3V3 · VPCIe_3V3 · VRPi_5V · VBUS_USB2_5V
· 40-pin dual-row pin header (P11)
· 40-pin dual-row pin header (P11)
Supplies to 4-bit voltage-level translator used for USB-to-dual UART debug interface
Supplies to USB2.0 Type-A Host

[1] BUCK1 and BUCK3 are configured as dual phase mode. [2] PCA9451 BUCK1/3 dual phase default output voltage is 0.8 V. Software changes it to 0.95 V for overdrive mode.
For further details on the power sequence needed by the i.MX 93, refer to section “Power sequence” in the i.MX 93 Reference Manual.

2.3 Clocks
FRDM-IMX93 provides all the clocks required for the processor and peripheral interfaces. Table 9 summarizes the specifications of each clock and the component that provides it.

Table 9.FRDM-IMX93 clocks Part identifier Clock generator

Y401

Crystal oscillator

Clock XTALI_24M

Specifications Frequency: 24 MHz

Destination Target processor

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Table 9.FRDM-IMX93 clocks…continued Part identifier Clock generator

QZ401

Crystal oscillator

QZ701

Crystal oscillator

Y402

Crystal oscillator

Y403

Crystal oscillator

Y404

Crystal oscillator

Clock XTALO_24M
XTALI_32K XTALO_32K
XIN_32K XOUT_32K
PHY1_XTAL_I PHY1_XTAL_O
PHY2_XTAL_I PHY2_XTAL_O
HDMI_XTALIN HDMI_XTALOUT

Specifications

Destination

Frequency: 32.768 kHz NVCC_BBSM block of target processor
Frequency: 32.768 kHz PCA9451AHNY PMIC

Frequency: 25 MHz Ethernet RMII PHY1

Frequency: 25 MHz Ethernet RMII PHY2

Frequency: 27 MHz

Onboard LVDS to HDMI converter module IT6263 (U719)

2.4 I2C interface

The i.MX 93 processor supports a low-power inter-integrated circuit (I2C) module that supports an efficient interface to an I2C-bus as a master. The I2C provides a method of communication between a number of devices available on the FRDM-IMX93 board.
One 10-pin 2×5 2.54 mm connector P12 is provided on the board to support I2C, CAN, and ADC connections. The developers can use the port for some specific application development.
Table 10 explains the I2C, CAN, and ADC header, P12, pinout.

Table 10.10-pin 2×5 2.54mm I2C, CAN, and ADC header (P12) pinout

Signal name

Description

VDD_3V3

3.3 V power supply

VDD_5V

5 V power supply

ADC_IN0

ADC input channel 0

ADC_IN1

ADC input channel 1

I3C_INT

I2C/I3C interrupt signal

GND

Ground

I3C_SCL

I2C/I3C SCL signal

CAN_H

CAN transceiver high signal

I3C_SDA

I2C/I3C SDA signal

CAN_L

CAN transceiver low signal

Table 11 describes the I2C devices and their I2C addresses (7-bit) on the board.

Table 11.I2C devices

Part identifier

Device

U719

IT6263

U748

PCAL6408AHK

I2C address (7-bit) Port

Speed

0x4C (0b’1001100x) MX-I2C1 0x20 (0b’0100000x) MX-I2C1

1 MHz Fm+ 1 MHz Fm+

Voltage Description

3.3 V 3.3 V

LVDS to HDMI converter
I/O expander for IRQ / OUTPUT

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Table 11.I2C devices…continued

Part identifier

Device

U701

PCA9451AHNY

U725

PCAL6524HEAZ

U10 U705

AT24C256D PTN5110NHQZ

U712

PTN5110NHQZ

U710

NX20P3483UK

U740

PCF2131

I2C address (7-bit) Port

0x25 (0b’0100101x) MX-I2C2

0x22 (0b’01000[10]x)

MX-I2C2

0x50 (0b’1010000x) MX-I2C2

0x52 (0b’10100[10]x)

MX-I2C3

0x50 (0b’10100[00]x)

MX-I2C3

0x71 (0b’11100[01]x)

MX-I2C3

0x 53 (0b’110101[0]x)

MX-I2C3

Speed 1 MHz Fm+ 1 MHz Fm+ 1 MHz Fm+ 1 MHz Fm+ 1 MHz Fm+ 1 MHz Fm+ 1 MHz Fm+

Voltage Description

3.3 V 3.3 V
3.3 V 3.3 V
3.3 V
3.3 V

PMIC
IO expander for IRQ/ OUTPUT
EEPROM
USB Type-C Power Delivery PHY
USB Type-C Power Delivery PHY
USB load switch

3.3 V External RTC

2.5 Boot mode and boot device configuration
The i.MX 93 processor offers multiple boot configurations, which can be selected by SW1 on the FRDM-IMX93 board or from the boot configuration stored on the internal eFUSE of the processor. In addition, the i.MX 93 can download a program image from a USB connection when configured in serial download mode. The four dedicated BOOT MODE pins are used to select the various boot modes.
Figure 7 shows the boot mode selection switch.

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Figure 7. Boot mode selection switch Table 12 describes the SW1 values used in different boot modes.

Table 12.Boot mode settings

SW1 [3:0]

BOOT_MODE[3:0]

0001

0010

0011

Boot core Cortex-A

Boot device Serial downloader (USB) uSDHC1 8-bit eMMC 5.1 uSDHC2 4-bit SD3.0

On the FRDM-IMX93 board, the default boot mode is from the eMMC device. The other boot device is the microSD connector. Set SW1[3:0] as 0010 to choose uSDHC1 (eMMC) as boot device, set 0011 to choose uSDHC2 (SD), and set 0001 to enter USB serial download.
Note: For more information about the boot modes and boot device configuration, see chapter “System Boot” in the i.MX 93 Applications Processor Reference Manual.
Figure 8 shows the connection of SW1 and i.MX 93 boot mode signals.

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Figure 8.Boot configuration schematic

2.6 PDM interface

The pulse density modulated (PDM) microphone interface of the processor provides PDM/MQS support on the FRDM-IMX93, and it connects to a 3.5 mm audio jack (P15).

Table 13.Audio jack Part identifier
P15

Manufacturing part number PJ_3536X

Description 3.5 mm audio jack for onboard MQS analog input / output

2.7 LPDDR4x DRAM memory
The FRDM-IMX93 board features one 1 Gig × 16 (1 channel ×16 I/O × 1 rank) LPDDR4X SDRAM chip (MT53E1G16D1FW-046 AAT:A) for a total of 2 GB of RAM memory. The LPDDR4x DRAM memory is connected to the i.MX 93 DRAM controller.
The ZQ calibration resistors (R209 and R2941) used by the LPDDR4x chip are 240 1% to LPD4/x_VDDQ and the ZQ calibration resistor DRAM_ZQ used at i.MX93 SoC side is 120 1% to GND.
In the physical layout, the LPDDR4X chip is placed at the top side of the board. The data traces are not necessarily connected to the LPDDR4x chips in sequential order. Instead, the data traces are connected as best determined by the layout and other critical traces for the ease of routing.

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2.7.1 LPDDR4X to LPDDR4 migration
The FRDM-IMX93 DRAM part is MT53E1G16D1FW-046 AAT:A that supports both LPDDR4X and LPDDR4 modes, however, LPDDR4X has been selected as the default option on the board. To verify LPDDR4, the two ways are as follows:
· Rework DRAM VDDQ power to 1.1 V to support LPDDR4 by performing the following steps: 1. Remove R704 2. Install R702 3. Make sure that the DRAM parameters meet the LPDDR4 requirement

Figure 9.LPDDR4 rework · No hardware rework is required. Change the DRAM VDDQ power to 1.1 V by software to configure the PMIC
by I2C after system power on.
2.8 SD card interface
The target processor has three ultra secured digital host controller (uSDHC) modules for SD/eMMC interface support. The uSDHC2 interface of the i.MX 93 processor connects to the MicroSD card slot (P13) on the FRDM-IMX93 board. This connector supports one 4-bit SD3.0 MicroSD card. To select it as the boot device of the board, see Section 2.5.
2.9 eMMC memory
The eMMC memory (at the SOM board) is connected to the uSDHC1 interface of the i.MX 93 processor, which can support eMMC 5.1 devices. It is the default boot device of the board. Table 12 describes the boot settings. Table 14 describes the eMMC memory device that is supported by the uSDHC1 interface.

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Table 14.Supported eMMC device Part identifier Part number

U501

FEMDRM032G-A3A55

Configuration 256 Gb x1

FBGA TFBGA-153

Manufacturer FORESEE

Memory size 32 GB

2.10 M.2 connector and Wi-Fi/Bluetooth module

The FRDM-IMX93 board supports the M.2/NGFF Key E mini card 75-pin connector, P8. The M.2 mini card connector supports USB, SDIO, SAI, UART, I2C, and GPIO connection. By default, these signals are connected with the onboard Wi-Fi module, however, to use this M.2 slot, the following resistors must be reworked.

Table 15.Resistors rework for M.2 slot usage Resistors DNP R2808, R2809, R2812, R2819, R2820, R2821 R3023, R3024, R2958, R3028 R2854, R2855 R3038, R2870, R2871 R2796, R2798, R2800, R2802 R2797, R2799, R2801, R2805 R2832, R2834, R2836, R2838

Resistors install R2824, R2825, R2826, R2827, R2828, R2829 R2960, R2860 R2851, R2853 R3037, R2866, R2867 R2788, R2791, R2792, R2794 R2789, R2790, R2793, R2795 R2833, R2835, R2837, R2839

The M.2 connector can be used for Wi-Fi / Bluetooth card, IEEE802.15.4 Radio, or 3G / 4G cards. Table 16 describes the pinout of the M.2 mini card connector (P8).

Table 16.M.2 mini card connector (P8) pinout

M.2 mini card connector pin Connection details

number

2, 4, 72, 3V3_1, 3V3_2, 3V3_3, 3V3_4 Connected to VPCIe_3V3 power supply 74

LED1

Connected to M.2 Green LED, D613

I2S_SCK

Connected to SAI1_TXC processor pin if R2788 is populated

I2S_WS

Connected to SAI1_TXFS processor pin if R2791 is populated

I2S_SD_IN

Connected to SAI1_RXD processor pin if R2794 is populated

I2S_SD_OUT

Connected to SAI1_TXD processor pin if R2792 is populated

LED2

Connected to M.2 Orange LED, D614

UART_WAKE

M2_UART_nWAKE input for I/O expander (PCAL6524HEAZ, P0_3, I2C address: 0x22) if R2853 is populated

UART_RXD

Connected to UART5_RXD if R2835 is populated

UART_TXD

Connected to UART5_TXD if R2833 is populated

UART_CTS

Connected to UART5_CTSI if R2839 is populated

UART_RTS

Connected to UART5_RTSO if R2837 is populated

VEN_DEF1

Connected to SPI3_MOSI if R2790 is populated

VEN_DEF2

Connected to SPI3_MISO if R2795 is populated

VEN_DEF3

Connected to SPI3_CLK if R2793 is populated

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Table 16.M.2 mini card connector (P8) pinout…continued

M.2 mini card connector pin Connection details

number

SUSCLK

Connected to PMIC_32K_OUT, generated by PCA9451AHNY PMIC

PERST0

M2_nRST input for I/O expander (PCAL6524HEAZ, P2_2, I2C address: 0x22)

W_DISABLE2

M2_nDIS2 input for I/O expander (PCAL6524HEAZ, P2_3, I2C address: 0x22) if R2867 is populated

W_DISABLE1

M2_nDIS1 input for I/O expander (PCAL6524HEAZ, P2_4, I2C address: 0x22) if R2866 is populated

I2C_DATA

Connected to SDAL pin of PCA9451AHNY PMIC

I2C_CLK

Connected to SCLL pin of PCA9451AHNY PMIC

ALERT

M2_nALERT input for I/O expander (PCAL6524HEAZ, P1_2, I2C address: 0x22) if R2860 is populated

USB_D+

Connected to USB2_D_P processor pin if R2806 is populated

USB_D-

Connected to USB2_D_N if R2807 is populated

SDIO_CLK

Connected to the SD3_CLK processor pin and processor interface SDHC3 if R2824 is populated

SDIO_CMD

Connected to the SD3_CMD processor pin and processor interface SDHC3 if R2825 is populated

SDIO_DATA0

Connected to the SD3_DATA0 processor pin and processor interface SDHC3 if R2826 is populated

SDIO_DATA1

Connected to the SD3_DATA1 processor pin and processor interface SDHC3 if R2827 is populated

SDIO_DATA2

Connected to the SD3_DATA2 processor pin and processor interface SDHC3 if R2828 is populated

SDIO_DATA3

Connected to the SD3_DATA3 processor pin and processor interface SDHC3 if R2829 is populated

SDIO_WAKE

Connected to the CCM_CLKO1 processor pin of NVCC_WAKEUP module if R2851 is populated

SDIO_RST

SD3_nRST output from I/O expander (PCAL6524HEAZ, P1_4, I2C address: 0x22) if R3037 is populated

PEWAKE0

PCIE_nWAKE input for I/O expander (PCAL6524HEAZ, P0_2, I2C address: 0x22) if R2868 is populated

For further details about i.MX 93 interfaces, see i.MX 93 Applications Processor Reference Manual.

2.11 Tri-radio module interface

The FRDM-IMX93 board features a Tri-radio (Wi-Fi 6, Bluetooth 5.4, and 802.15.4) module that interfaces with the SD2, UART5, SAI1, and SPI3 controller of the target processor.

Table 17.Tri-radio module

Part identifier

Manufacturing part number

U731

MAYA-W27x (u-blox)

Description
Host-based Wi-Fi 6, Bluetooth 5.4, and 802.15.4 modules for the IoT applications

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The two antenna pins (RF_ANT0 and RF_ANT1) of the module connects to U.FL connectors P9 and P10 (DNP by default). The module is supplied with VPCIe_3V3, VEXT_1V8, and VDD_1V8.
The MAYA-W27x module and M.2 connector share several interface lines on the FRDM-IMX93 board. Zeroohm resistors enable signal selection between these components.
SD3 Interface
The SD3 interface lines are shared between the MAYA-W27x module and the M.2 connector. Zero-ohm resistors select either the MAYA-W27x module (default setting) or the M.2 connector.
UART5 Interface
Similarly, the UART5 interface lines are shared between the MAYA-W27x module and the M.2 connector. Zeroohm resistors select either the MAYA-W27x module (default setting) or the M.2 connector.
SAI1 Interface
The SAI1 interface lines are shared between the MAYA-W27x module and the M.2 connector. Zero-ohm resistors select either the MAYA-W27x module (default setting) or the M.2 connector for 1.8 V translated signals, generated using the 74AVC4T3144 bidirectional voltage translator (U728).
SPI3 Interface
The SPI3 signals (CLK, MOSI, MISO, and CS0) are multiplexed with GPIO_IO[08, 09, 10, 11] signals, respectively. These SPI3 signals are shared between the MAYA-W27x module and the M.2 connector. Zeroohm resistors select either the MAYA-W27x module (default setting) or the M.2 connector for 1.8 V translated signals, generated using the 74AVC4T3144 bidirectional voltage translator (U729).

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Figure 10.Resistors configuration for SD3

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Figure 11.Resistors configuration for SAI1, UART5, and SPI3
2.12 CAN interface
The i.MX93 processor supports a controller area network (CAN) module that is a communication controller implementing the CAN protocol according to the CAN with flexible data rate (CAN FD) protocol and the CAN 2.0B protocol specification. The processor supports two CAN FD controllers.
On the FRDM-IMX93 board, one of the controllers is connected to the high-speed CAN transceiver TJA1051T/3. The high-speed CAN transceiver drives CAN signals between the target processor and a 10-pin 2×5 2.54 mm header (P12) to its physical two-wire CAN bus.
The CAN_TXD and CAN_RXD signals are multiplexed on GPIO_IO25 and GPIO_IO27, respectively. On the board, a 2-bit DIP switch (SW3) is used to control the CAN signals. For SW3 detail, see Section 1.7. The CAN_STBY signal from the IO expander PCAL6524HEAZ (U725, P2_7, I2C address: 22) enables / disables CAN standby mode.

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The CAN interface circuit includes the split termination RC filter (62 + 56pF) for noise rejection and signal integrity. The switch SW4 is provided for enabling/disabling the RC filter. For SW4 detail, see Section 1.7.
The HS-CAN transceiver and header are described in Table 18.

Table 18.High-speed CAN transceiver and header

Part identifier

Manufacturing part number

Description

U741

TJA1051T/3

High-speed CAN transceiver. Provides an interface between a CAN protocol controller and the physical two-wire CAN bus.

P12

Not applicable

10-pin 2×5 2.54 mm connector (P12). It is connected to the CAN bus and

allows external connection with the bus.

Note: Table 10 explains pinout for the 10-pin 2×5 2.54 mm connector P12.

Note: For details about TJA1051, see TJA1051 data sheet at nxp.com.

2.13 USB interface

The i.MX 93 applications processor features two USB 2.0 controllers, with two integrated USB PHYs. On the FRDM-IMX93 board, one is used for the USB2.0 Type-C Port (P2) and the other is used for USB2.0 Type-A Port (P17).
Table 19 describes the USB ports available on the board.

Table 19.USB ports Part identifier USB Port Type

USB2.0 Type-C

P17

USB2.0 Type-A

USB Type-C PD

P16

USB Type-C

Description
Connects to full-speed USB host and device controller (USB 1) of target processor. It can operate as a device or host. The USBC_VBUS signal controls the VBUS drive for the USB port.
Connects to full-speed USB host and device controller (USB 2) of target processor. It can operate as a device or host. The USB2_VBUS signal controls the VBUS drive for the USB port. The USB2_DP and USB2_DN signals from the USB2 controller of the target processor connect to USB2 Type A port (P17) by default. These signals can be connected to M.2 card connecter (P6) by solder/DNP R2803, R2804, R2806, R2807.
It is used for power only. It does not support USB data transfer. It is the only power supply port therefore it must always be supplied for system power.
It is used for system debug purpose. For detail, see the system debug section.

2.14 Camera interface
The i.MX 93 processor includes a mobile industry processor interface (MIPI) camera serial interface 2 (CSI-2) receiver that handles image sensor data from camera modules and supports up to 2 data lanes. The MIPI CSI-2 signals are connected to an FPC connector to which the RPI-CAM-MIPI (Agile Number: 53206) accessory card can be plugged in. The description of the FPC connector is as below:
· Part identifier: P6 · Table 20 describes FPC connector pinout

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Table 20.MIPI CSI connector (P6) pinout

Pin number

Signal

1, 4, 7, 10, 13, 16, 19 GND

MIPI_CSI1_D0_N

MIPI_CSI1_D0_P

MIPI_CSI1_D1_N

MIPI_CSI1_D1_P

MIPI_CSI1_CLK_N

MIPI_CSI1_CLK_P

CSI_nRST

CAM_MCLK

USB_I2C_SCL

USB_I2C_SDA

DSI&CAM_3V3

Description Ground MIPI CSI data channel 0
MIPI CSI data channel 1
MIPI CSI clock signal
Reset signal from I/O expander U725 (PCAL6524HEAZ, P2_6, I2C address: 0x22) 3.3 V voltage translated input from CCM_CLKO3 pin (CSI_MCLK) of the target processor 3.3 V I2C3 SCL signal 3.3 V I2C3 SDA signal 3.3 V power supply

2.15 MIPI DSI

The i.MX 93 processor supports MIPI display serial interface (DSI) that supports up to four lanes and the resolution can be up to 1080p60 or 1920x1200p60.
The MIPI DSI data and clock signals from the target processor are connected to one 22-pin FPC connector (P7).
Table 21 describes DSI connector pinout.

Table 21.MIPI DSI connector (P7) pinout

Pin number

Signal

1, 4, 7, 10, 13, 16, 19

GND

DSI_DN0

DSI_DP0

DSI_DN1

DSI_DP1

DSI_CN

DSI_CP

DSI_DN2

DSI_DP2

DSI_DN3

DSI_DP3

CTP_RST

DSI_CTP_nINT

Description Ground MIPI DSI data channel 0
MIPI DSI data channel 1
MIPI DSI clock signal
MIPI DSI data channel 2
MIPI DSI data channel 3
Reset signal from I/O expander U725 (PCAL6524HEAZ, P2_1, I2C address: 0x22) Interrupt signal to I/O expander U725 (PCAL6524HEAZ, P0_7, I2C address: 0x22)

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Table 21.MIPI DSI connector (P7) pinout…continued

Pin number

Signal

USB_I2C_SCL

USB_I2C_SDA

DSI&CAM_3V3

Description 3.3 V I2C3 SCL signal 3.3 V I2C3 SDA signal 3.3 V power supply

2.16 HDMI interface
The i.MX 93 processor supports a four data lane LVDS TX display, the resolution can be up to 1366x768p60 or 1280x800p60. These signals are connected to one high-performance single-chip De-SSC LVDS to HDMI converter IT6263. The output of the IT6263 connects to the HDMI connector P5. The connector is as shown in Figure 3.

2.17 Ethernet
The i.MX 93 processor supports two Gigabit Ethernet controllers (capable of simultaneous operation) with support for Energy-Efficient Ethernet (EEE), Ethernet AVB, and IEEE 1588.
The Ethernet subsystem of the board is provided by the Motorcomm YT8521SH-CA Ethernet transceivers (U713, U716) which support RGMII and connect to RJ45 connectors (P3, P4). The Ethernet transceivers (or PHYs) receive standard RGMII Ethernet signals from i.MX 93. The RJ45 connectors integrate Magnetic transformer inside, so they can be directly connected to Ethernet transceivers (or PHYs).
Each Ethernet port has a unique MAC address, which is fused into i.MX 93. The Ethernet connectors are labeled clearly on the board.

2.18 Expansion connector

One 40-pin dual-row pin connector (P11) is provided on the FRDM-IMX93 board to support I2S, UART, I2C, and GPIO connections. The header can be used to access various pins or to plug in accessory cards, such as the LCD display TM050RDH03, 8MIC-RPI-MX8 card, MX93AUD-HAT.
The connector is shown in Figure 3.

Table 22.P11 pin definition

Pin number

Net name

VRPi_3V3

GPIO_IO02

GPIO_IO03

GPIO_IO04

GND

GPIO_IO17

GPIO_IO27

GPIO_IO22

VRPi_3V3

GPIO_IO10

GPIO_IO09

GPIO_IO11

Pin number 2 4 6 8 10 12 14 16 18 20 22 24

Net name VRPi_5V VRPi_5V GND GPIO_IO14 GPIO_IO15 GPIO_IO18 GND GPIO_IO23 GPIO_IO24 GND GPIO_IO25 GPIO_IO08

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Table 22.P11 pin definition…continued

Pin number

Net name

GND

GPIO_IO00

GPIO_IO05

GPIO_IO06

GPIO_IO13

GPIO_IO19

GPIO_IO26

GND

Pin number 26 28 30 32 34 36 38 40

Net name GPIO_IO07 GPIO_IO01 GND GPIO_IO12 GND GPIO_IO16 GPIO_IO20 GPIO_IO21

2.19 Debug interface
The FRDM-IMX93 board features two independent debug interfaces.
· Serial wire debug (SWD) header (Section 2.19.1) · USB-to-Dual UART debug port (Section 2.19.2)
2.19.1 SWD interface
The i.MX 93 applications processor has two serial wire debug (SWD) signals on dedicated pins, and those signals are directly connected to the standard 3-pin 2.54 mm connector P14. The two SWD signals used by the processor are:
· SWCLK (Serial wire clock) · SWDIO (Serial wire data input / output) The SWD connector P14 is shown in Figure 3.
2.19.2 USB debug interface
The i.MX 93 applications processor has six independent UART ports (UART1 UART6). On the FRDM-IMX93 board, UART1 is used for Cortex-A55 core, and UART2 is used for Cortex-M33 core. A single chip USB to dual UART is used for the debug purpose. The part number is CH342F. You can download the driver from WCH Website.
After installing the CH342F driver, the PC / USB host enumerates two COM ports connected to the P16 connector through a USB cable:
· COM Port 1: Cortex-A55 system debugging · COM Port 2: Cortex-M33 system debugging You can use the following terminal tools for debugging purposes:
· Putty · Tera Term · Xshell · Minicom>=2.9 To debug under Linux, make sure CH342F Linux driver is installed.
Table 23 describes the required settings.

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Table 23.Terminal setting parameters Data rate Data bits Parity Stop bits

115,200 Baud 8 None 1

The USB debug connector P16 is shown in Figure 3.

2.20 Board errata
No board errata.

3 Working with accessories
This section describes how a connection can be established between with the FRDM-IMX93 board and compatible accessory boards.

3.1 7-inch Waveshare LCD
This section describes how to connect the FRDM-IMX93 board with a 7-inch Waveshare LCD using MIPI DSI interface and I2C. It also specifies the changes required in the software configuration to support Waveshare LCD.

3.1.1 Connection of the MIPI DSI interface
To make a connection between a 7-inch Waveshare LCD and the FRDM-IMX93 board through the MIPI DSI interface, ensure the following:
At LCD side:
· FPC cable orientation: Conductive side up and stiffener side down · Insert the FPC cable into LCD’s FPC connector At FRDM-IMX93 board side:
· FPC cable orientation: Conductive side right and stiffener side left · Insert FPC cable into the board’s FPC connector (P7)

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Figure 12.FPC cable connection between 7-Inch Waveshare LCD and FRDM-IMX93
3.1.2 Connection of I2C Figure 13 shows the I2C signal wires connection between 7-Inch Waveshare LCD and FRDM-IMX93.

Figure 13.I2C connection between 7-Inch Waveshare LCD and FRDM-IMX93
3.1.3 Software configuration update
The following steps specify how to replace the default dtb with the custom dtb (imx93-11×11-frdm-dsi.dtb) that supports Waveshare LCD.
1. Stop at U-Boot 2. Use the below commands to replace the default dtb:
$setenv fdtfile imx93-11×11-frdm-dsi.dtb $saveenv $boot

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3.2 5-inch Tianma LCD
TM050RDH03-41 is a 5” TFT LCD display with 800×480 resolution. This industrial-grade display uses an RGB interface without a touch panel. This display module connects to the FRDM-IMX93 through the EXPI 40-pin connector (P11).
3.2.1 Connection between Tianma panel and adapter board
Figure 14 shows the FPC connection between the 5-inch Tianma LCD panel and adapter board. Insert the FPC connector with the conductive side up (stiffener side down).

Figure 14.FPC connection between 5-inch Tianma LCD panel and adapter board
3.2.2 Connection between adapter board and FRDM-IMX93 Plug 5” Tianma LCD to FRDM-MIX93 through the EXPI 40-pin connector (P11) as shown in Figure 15

Figure 15.5-inch Tianma LCD connection with FRDM-MIX93 through 40-pin connector

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3.2.3 Software configuration update
The following steps specify how to replace the default dtb with the custom dtb (imx93-11×11-frdm-tianma-wvgapanel.dtb) that supports Tianma LCD.
1. Stop at U-Boot 2. Use the below commands to replace the default dtb:
$setenv fdtfile imx93-11×11-frdm-tianma-wvga-panel.dtb $saveenv $boot

3.3 Camera module (RPI-CAM-MIPI)
The RPI-CAM-MIPI accessory board is a MIPI-CSI camera module adapter. The adapter is based on the AR0144 CMOS image sensor with ONSEMI IAS interface by default, which features a 1/4-inch 1.0 Mp with an active-pixel array of 1280 (H) x 800 (V). The bypassable onboard ISP chip allows it to be used with a wide range of SoCs. This accessory board connects to the FRDM-IMX93 board through the 22-pin / 0.5 mm pitch FPC cable.
3.3.1 Connection between RPI-CAM-MIPI and FRDM-IMX93
Figure 16 shows the FPC cable connection between RPI-CAM-MIPI and FRDM-IMX93.
At the RPI-CAM-MIPI side:
· FPC cable orientation: Stiffener side up and conductive side down · Insert FPC cable into RPI-CAM-MIPI FPC connector At FRDM-IMX93 board side:
· FPC cable orientation: Conductive side right and stiffener side left · Insert the FPC cable into the FPC connector (P7) of the board

Figure 16.FPC connection between RPI-CAM-MIPI and FRDM-IMX93

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3.3.2 Software configuration update
In default BSP, FRDM-IMX93 supports ap1302 + ar0144.
For the first time use, follow the below steps:
· Download ap1302 firmware from ONSEMI github, and rename it as ap1302.fw · Copy ap1302.fw to the target board under path /lib/firmware/imx/camera/ (if the folder does not exist, create it) · Reboot the board as FRDM dtb supports the camera · Check whether the camera is probed:
root@imx93frdm:~# dmesg | grep ap1302 [2.565423]ap1302 mipi2-003c:AP1302 Chip ID is 0x265 [2.577072]ap1302 mipi 2-003c: AP1302 is found [7.477363]mx8-img-md: Registered sensor subdevice: ap1302 mipi 2-003c (1) [7.513503]mx8-img-md: created link [ap1302 mipi 2-003c]=> [mxc-mipi-csi2.0]7.988932]ap1302 mipi 2-003c: Load
firmware successfully.

3.4 Other accessory boards
There are other accessory boards also that can work with FRDM-IMX93 through EXPI 40-pin interface, such as MX93AUD-HAT and 8MIC-RPI-MX8. To use any such board, check the schematic and layout to determine the direction of the connection between FRDM-IMX93 and the accessory board in advance. Also, choose the right dtb file in the U-Boot stage.

Figure 17.Accessory boards
3.5 Software configuration update
· To use the MX93AUD-HAT and 8MIC-RPI-MX8 boards together or use the MX93AUD-HAT board alone, run the following commands at U-Boot to replace the default dtb: $setenv fdtfile imx93-11×11-frdm-aud-hat.dtb $saveenv $boot
· To use the 8MIC-RPI-MX8 board alone, run the following commands at U-Boot to replace the default dtb: $setenv fdtfile imx93-11×11-frdm-8mic.dtb $saveenv

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$boot

4 PCB information

The FRDM-IMX93 is made with standard 10-layer technology. The material is FR-4, and the PCB stack-up information is described in Table 24.

Table 24.FRDM-IMX93 board stack up information

Layer Description

Copper (mil)

TOP

0.7+Plating

–

Dielectric

–

GND02

1.4

–

Dielectric

–

ART03

1.4

–

Dielectric

–

PWR04

1.4

–

Dielectric

–

PWR05

1.4

–

Dielectric

–

ART06

1.4

–

Dielectric

–

GND07

1.4

–

Dielectric

–

ART08

1.4

–

Dielectric

–

GND09

1.4

–

Dielectric

–

BOTTOM

0.7+Plating

Finished: 1.6 mm

Designed: 71.304 mil

Material: FR-4

Generic –

Dielectric thickness (mil)

–

1.3

2.61

–

8.8

–

8.8

–

8.8

–

2.61

–

1.3

1.811 mm

5 Acronyms

Table 25 lists and explains the acronyms and abbreviations used in this document.

Table 25.Acronyms Term BGA CAN CSI-2

Description Ball grid array Controller area network Camera serial interface 2

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Table 25.Acronyms…continued Term DNP DSI eMMC EXPI FD GPIO HS I2C I2S I3C LDO LED MIPI MISO MOSI NGFF PDM PMIC PWM UART USB uSDHC

Description Do not populate Display serial interface Embedded multimedia card Expansion interface Flexible data rate General-purpose input/output High-speed Inter-integrated circuit Inter-IC sound Improved inter-integrated circuit Low dropout regulator Light-emitting diode Mobile industry processor interface Master input slave output Master output slave input Next-generation form factor Pulse-density modulation Power management-integrated circuit Pulse width modulation Universal asynchronous receiver/transmitter Universal serial bus Ultra secured digital host controller

6 Related documentation

Table 26 lists and explains the additional documents and resources that you can refer to for more information on the FRDM-IMX93 board. Some of the documents listed below may be available only under a nondisclosure agreement (NDA). To request access to these documents, contact your local field applications engineer (FAE) or sales representative.

Table 26.Related documentation

Document

Description

Link / how to access

i.MX 93 Applications Processor Reference Manual

Intended for system software and hardware

IMX93RM

developers and application programmers who want

to develop products with i.MX 93 MPU

i.MX 93 Industrial Application Processors Data Sheet

Provides information about electrical characteristics, hardware design considerations, and ordering information

IMX93IEC

i.MX93 Hardware Design Guide

This document aims to help hardware engineers IMX93HDG design and to test their i.MX 93 processor-based designs. It provides information about board layout

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Table 26.Related documentation…continued

Document

Description

recommendations and design checklists to ensure first-pass success and avoidance of board bring-up problems.

Link / how to access

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7 Note about the source code in the document

The example code shown in this document has the following copyright and BSD-3-Clause license:
Copyright 2024 NXP Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

8 Revision history

Table 27 summarizes the revisions to this document.

Table 27.Revision history

Document ID

Release date

UM12181 v.1.0

9 December 2024

Description Initial public release.

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Legal information
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Contents

1 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 2 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.7.1 2.8 2.9 2.10 2.11 2.12 2.13 2.14 2.15 2.16 2.17 2.18 2.19 2.19.1 2.19.2 2.20 3 3.1 3.1.1 3.1.2 3.1.3 3.2 3.2.1
3.2.2
3.2.3 3.3 3.3.1
3.3.2 3.4 3.5 4 5 6

FRDM-IMX93 overview ……………………………… 2 7 Block diagram …………………………………………….2 Board features …………………………………………… 2 8 Board kit contents ……………………………………….4 Board pictures …………………………………………… 4 Connectors …………………………………………………7 Push buttons ………………………………………………8 DIP switch ………………………………………………….8 LEDs ………………………………………………………… 9 FRDM-IMX93 functional description ………….. 9 Processor …………………………………………………10 Power supply …………………………………………… 10 Clocks …………………………………………………….. 13 I2C interface ……………………………………………. 14 Boot mode and boot device configuration ……..15 PDM interface …………………………………………..17 LPDDR4x DRAM memory …………………………. 17 LPDDR4X to LPDDR4 migration ………………… 18 SD card interface ………………………………………18 eMMC memory ………………………………………… 18 M.2 connector and Wi-Fi/Bluetooth module ….. 19 Tri-radio module interface …………………………..20 CAN interface ………………………………………….. 23 USB interface ………………………………………….. 24 Camera interface ……………………………………… 24 MIPI DSI …………………………………………………. 25 HDMI interface ………………………………………….26 Ethernet ………………………………………………….. 26 Expansion connector ………………………………… 26 Debug interface ……………………………………….. 27 SWD interface …………………………………………. 27 USB debug interface ………………………………… 27 Board errata ……………………………………………..28 Working with accessories ………………………..28 7-inch Waveshare LCD ………………………………28 Connection of the MIPI DSI interface ………….. 28 Connection of I2C ……………………………………..29 Software configuration update ……………………. 29 5-inch Tianma LCD ……………………………………30 Connection between Tianma panel and adapter board ………………………………………….. 30 Connection between adapter board and FRDM-IMX93 …………………………………………… 30 Software configuration update ……………………. 31 Camera module (RPI-CAM-MIPI) ……………….. 31 Connection between RPI-CAM-MIPI and FRDM-IMX93 …………………………………………… 31 Software configuration update ……………………. 32 Other accessory boards ……………………………. 32 Software configuration update ……………………. 32 PCB information …………………………………….. 33 Acronyms ………………………………………………. 33 Related documentation …………………………… 34

Note about the source code in the document ………………………………………………..36 Revision history ………………………………………36 Legal information …………………………………….37

Please be aware that important notices concerning this document and the product(s) described herein, have been included in section ‘Legal information’.

For more information, please visit: https://www.nxp.com

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Date of release: 9 December 2024 Document identifier: UM12181

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NXP FRDM-IMX93 Development Board [pdf] User Manual
i.MX 93, FRDM-IMX93, UM12181, FRDM-IMX93 Development Board, FRDM-IMX93, Development Board, Board

References

User Manual

NXP FRDM-IMX93 Development Board User Manual

FRDM-IMX93 Development Board

Product Information

Specifications:

Product Usage Instructions:

1. System Setup and Configurations:

2. Hardware Overview:

3. Usage Guidelines:

Frequently Asked Questions (FAQ):

Q: What are the main features of the FRDM-IMX93 board?

Q: How can I connect peripherals to the FRDM-IMX93 board?

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