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R-IN32M3 - Multi-Protocol Industrial Ethernet

RUN the R-IN! Industrial Ethernet Controllers

Industrial Ethernet at its best, Renesas Industrial Network Controllers: the R-IN32M3 Series
Industrial Ethernet controllers with multi-protocol support

The R-IN32M3 series of Industrial Ethernet controllers is designed to support a broad range of industrial Ethernet protocols. Optimized integration options, emphasis on low power design and a high level of integration make it a very powerful, compact, power optimized device with a low overall bill of material cost. Smart integration of dedicated hardware accelerators allow to offer significant more processing power for applications than similar CPU designs without such accelerators.


R-IN32M3 Series: High Level Block Diagram



Key features

  • ARM® Cortex™-M3 based CPU subsystem clocked at 100MHz clock
  • Hardware offload engines take significant load from the main CPU
    • Hardware Real-time OS Accelerator (HW-RTOS)
    • Hardware Ethernet Accelerators (IP/TCP/UDP Check Sum, Header ENDEC, Buffer manager)
  • 1.3M bytes of on-chip RAM
  • 2-port Real-Time Gigabit Switch, supports cut-through and store&forward operating modes as well as IEEE1588 PTP and Device-Level-Ring (DLR) protocols
  • EtherCAT and CC-Link IE Field slave controller in hardware
  • CANopen/DeviceNet and CC-Link fieldbuses on-chip
  • Lots of peripherals and GPIOs


R-IN32M3 Series: Drastic reduction of CPU processing time per network frame

The R-IN32M3 comes in 2 flavors: one with EtherCAT (R-IN32M3-EC) and one with CC-Link IE (R-IN32M3-CL) support in hardware. Both versions include the real-time switch.


Block diagram: R-IN32M3-EC


Block diagram: R-IN32M3-CL
The R-IN32M3 devices are pin compatible packed into a compact 324-pin BGA package (19 mm x 19 mm, 1 mm ball pitch)



Detailed Product Features

  • High-performance ARM® Cortex™-M3 CPU core
    • 100 MHz max. clock frequency
    • 768 KByte instruction memory
    • 512 KByte data memory
    • 64 KByte buffer memory
  • Integrated interrupt controller
  • Hardware Real-time OS Accelerator (HW-RTOS)
  • Ethernet Accelerator
  • CC-Link IE Field controller (R-IN32M3-CL)
  • EtherCAT slave controller (R-IN32M3-EC)
  • Integrated 2-port Gigabit Ethernet Switch with cut-through technology for fastest Ethernet packet processing
  • IEEE1588 V2 (PTP) support
  • With optionally integrated 10/100 Industrial Ethernet PHYs (R-IN32M3-EC), featuring:
    • Lowest latency in the industry
    • Permanent cable quality tracking
    • Fast link-down detect
    • Fast Link up
    • Cable diagnostic
  • Serial Flash Interface
  • 16/32-bit SRAM interface
  • Multi-channel real-time DMA controller
  • 2 I2C interfaces
  • 2 UART interfaces
  • 2 CSI interfaces
  • 2 CAN interfaces
  • 1 CC-Link interface
  • GPIOs
  • Support for a wide range of industrial Ethernet protocols including but not limited to EtherCAT, CC-Link IE Field, PROFINET, EtherNet/IP, Modbus TCP, FL-net and others
  • All clocks generated (via PLL) with 25 MHz crystal oscillator
  • 4 Timers
  • Watchdog timer
  • Boundary scan support
  • Compact 324-pin BGA package, 19 mm x 19 mm,1 mm ball pitch
  • Power supply: 1.0 V (Core), 3.3 V (IO)
  • Temperature range TA -40°C to +85°C


Development Environment

You can carry out development with the R-IN32M3 Series using the tools from the below manufacturers.


Manufacturer Compiler Debugger Emulator

I-jet .................................... no trace

JTAGjet-Trace-CM ............ with trace

JTAGjet2 (coming soon) ... with trace

Yokogawa Digital Computer Corporation (YDC)   RVDS4.1 (ARM genuine)   microVIEW-PLUS

adviceLUNA AP510 .......................... no trace

AP511/2G .................... with trace

*Requires a 20-pin half-pitch connector conversion adapter.(AQ735)




About the Connector

Although ARM-compatible connectors include 20-pin full-pitch, 20-pin half-pitch, 10-pin half-pitch, and 38-pin Mictor, the R-IN32M3 development kit supports 20-pin half-pitch only.



Development Kit

The R-IN32M3 Series development kit can be used to evaluate the interfaces that are included on the R-IN32M3. For more information click here: https://www.renesas.com/en-eu/solutions/factory/industrial-communications/r-in/development-kits.html


R-IN32M3-EC Evaluation Board