Automotive CXPI Communication Application Circuit A (Driver-Receiver Board / CXPI Commander Node)

CXPI, a next‑generation automotive communication protocol, delivers low cost and high responsiveness to support efficient control of various in‑vehicle functions.
This reference design implements a CXPI driver/receiver circuit for in-vehicle CXPI communication.
The CXPI driver/receiver IC TB9032FNG is used as the communication interface.
When combined with a host controller equipped with a CXPI controller, the system operates as a CXPI commander node, enabling reliable connectivity to the CXPI bus.

Board Appearance
Board Appearance
TB9032FNG DF2B29FU DF2B29FU

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Features

  • By combining with an MCU that integrates a CXPI controller compliant with ISO 20794-4, CXPI communication can be easily implemented.
  • Up to 16 responder nodes can be connected when used as a zone ECU.
  • Equipped with overtemperature, undervoltage, and abnormal output detection to ensure the safety required for automotive applications.
  • Can be switched between Commander node and Responder node operation.
  • Outer dimensions: 65mm x 55mm

Specifications

Main Ics CXPI driver receiver (Physical layer) TB9032FNG
Input Power Supply Voltage DC 6V to 16V (Typ. 12V)
Input Control Signal Voltage DC 4.5V to 5.5V (Typ. 5V)

Design Documents

Materials for designers, such as an overview of circuit operation and explanations of design considerations. Please click on each tab to view the contents.

Design Data

Provides circuit data that can be loaded into EDA tools, PCB layout data, and data used in PCB manufacturing. Available in formats from multiple tool vendors. You can freely edit it with your preferred tool.

*1:Actual PCB was designed on CR8000BD. The other files were made from CR8000BD file.

*2:The data was generated on CR8000BD.

Used Toshiba Items

Part Number Device Category Application Area – Qty Description
Network communication IC CXPI Communication Circuit・1 Automotive CXPI communication driver receiver
ESD protection diode (bi-directional type) CXPI Communication Circuit・1 Bidirectional TVS Diode (ESD Protection Diode), +/-24 V, SOD-323(USC)

Related Documents

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