In system development using microcontrollers and processors, it's necessary to decide "which communication method to use and how to connect things" between ICs, components, and circuit boards. Functionality, stability, debuggability, and future expandability are all crucial considerations.
Interface technologies are diversifying and becoming more sophisticated depending on the application, ranging from IC-to-IC communication such as I²C/I3C/SPI to fieldbuses essential for automotive and industrial applications like CAN, as well as voltage level conversion and USB Type-C.
This page provides information about NXP's interface-related technologies and products.
"Understand the basics → Put it into practice → Interpret its behavior"
This is how I systematically organize Japanese technical articles.
This resource is helpful not only for those learning about communications for the first time, but also for engineers facing design and debugging challenges such as "Why isn't it working?" or "Is this waveform correct?". Please use the categories that interest you according to your purpose.
<目的別ガイド>
| the purpose | category |
| I want to understand how serial communication works. | Serial communication: I²C / I3C / SPI (board-to-board and IC-to-IC communication) |
|
I want to learn about CAN communication. |
CAN (Automotive and Industrial Communication) |
| We want to manage bus traffic by expanding the bus network, installing switches, and converting voltages. | Voltage conversion and signal control (bus traffic management) |
| I'm looking for peripheral ICs such as RTCs, temperature sensors, GPIO expanders, and LED/LCD drivers. | Peripheral devices (I²C / I3C / SPI connection ICs) |
| I would like to consider a USB interface. | USB-related products (USB Type-C, etc.) |
Serial communication: I²C / I3C / SPI (board-to-board and IC-to-IC communication)
■Basic and explanatory section
- Overview of the I²C Bus (Japanese Blog)
- Overview of the I3C bus (Japanese blog)
- [What You Need to Know Now] The Basics of the Next-Generation Interface "I3C" (Japanese Seminar Video)
- Overview of the SPI bus (Japanese blog)
■Practical Section
- I3C operation sample code: How to run "i3c-temperature-sensor" (Japanese blog)
- Basic SPI communication using NXP's MCX microcontroller and SDK: Practical testing with two connecte...
- Basic SPI Communication with NXP MCX Microcontrollers and SDK: SPI's Four Modes and Actual Signal Ve...
■Design and debugging
CAN (Automotive and Industrial Communication)
■Basic and explanatory section
- Overview and Features of the CAN Bus/Protocol (Japanese Blog)
- A thorough explanation of the features of NXP's automotive CAN/LIN transceiver products (NEXTY Electronics Corporation)
- Explanation of NXP's CAN transceiver products equipped with Signal Enhancement (SIC) technology (NEXTY Electronics Corporation)
■Practical Section
(One microcontroller board is sufficient)
(Requires 2 microcontroller boards)
Voltage conversion and signal control (bus traffic management)
Voltage Level Converter (Level Shifter) [General Purpose, I²C, SPI, I3C Compatible]
■Basic and explanatory section
■Practical Section
Peripheral devices (I²C / I3C / SPI connection ICs)
GPIO Expander [I²C, SPI bus compatible]
LED driver [I²C, SPI bus compatible]
- Introducing NXP's LED drivers for automotive applications (Nexty Electronics Corporation)
LCD driver [I²C, SPI bus compatible]
Real-time clock (RTC) [I²C, SPI bus compatible]
Temperature sensor [I²C, I3C bus compatible]
Serial protocol bridge
[I²C→UART, SPI→UART, SPI→I²C, I²C→SPI, UART→I²C]
USB-related products (USB Type-C, etc.)
- NXP Semiconductors: USB Type-C Solutions (Macnica, Inc.)
- USB PD-PHY/Power Delivery-PHY
- CC Logic Controller (USB Type-C)
- USB Redriver Multiplexer
- USB Type-C terminal protection (overvoltage protection, corrosion prevention, and wetness detection)
Expansion board for evaluating NXP interface products (Arduino pin compatible)
Interface products include Arduino ® shield solution boards that allow for easy evaluation with various microcontroller boards. Ready-to-use sample code is also available for these boards, allowing you to easily examine the characteristics of each product. Please refer to this document for the availability of sample code.
If you have any requests or suggestions for improvements regarding content related to the interface, please feel free to contact us using the information below.
NXP Japan Technical Blog (Japanese) Content Request/Improvement Survey – Fill out the form
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This page summarizes NXP's interface products.
Interface technologies are diversifying and becoming more sophisticated depending on the application, ranging from inter-IC communication such as I²C/I3C/SPI to fieldbuses essential for automotive and industrial applications like CAN, as well as voltage level conversion and USB Type-C.
This page provides information about NXP's interface-related technologies and products.
"Understand the basics → Put it into practice → Interpret its behavior"
This is how I systematically organize Japanese technical articles.
This resource is helpful not only for those learning about communications for the first time, but also for engineers facing design and debugging challenges such as "Why isn't it working?" or "Is this waveform correct?". Please use the categories that interest you according to your purpose.