The RH850/C1M-Ax microcontroller is equipped with an RH850 Family G3MH (C1M-A2 is dual)CPU core, which operates at a frequency of 240MHz for C1M-A1 and 320MHz for C1M-A2, providing high processing power. Along with the ROM, RAM and DMA, it includes various timers such as a motor control timer, various serial interfaces including CAN (CAN FD compatible), a 12-bit A/D converter (ADC), an R/D converter (RDC3A) that converts the resolver output signal to digital angle data, and a CPU and parallel motor control unit (EMU3), etc., providing peripheral functions that are ideal for motor control in HEVs/EVs.In addition, C1M-A2 can simultaneously control two motors.

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  • CPU Core:
    • C1M-A1: 240MHz core (Inc. Lockstep dual core x1)
    • C1M-A2: 320MHz core x2 (Inc. Lockstep dual core x1)
    • FPU
  • Clock:
    • Main Oscillator: 20 MHz
    • PLL with selectable SSCG mode:  240 or 320 MHz
    • PLL without SSCG mode: 80 MHz
    • On-chip low-speed oscillator: 240 kHz
    • Data transfer: DMAC / DTS
  • Timer:
    • Timer array unit D (TAUD)  2 or 4 units
    • Timer array unit J (TAUJ)  1 or 2 units
    • Motor control timer (TSG3) 2 or 3 units
    • Encoder timer (ENCA) 2 units
  • Analog: SAR A/D Converter 30 or 48ch, 3 units
  • Communication Interfaces:
    • Clocked Serial Interface H (CSIH) 3 channels
    • CAN interface(RS-CANFD) 4 channels
    • LIN interface(RLIN3) 3 channels
    • Serial Communication Interface (SCI3) 3 channels
    • RSENT 4 channel
  • Motor Control:
    • Motor control timer (TSG3) 2 or 3 units
    • R/D converter (RDC3A) 1 or 2 units
    • Enhanced motor control unit (EMU3) 1 unit
  • Safety:
    • Multi-Input Signature Generator (MISG)
    • Clock Monitor
    • Watchdog Timer
    • Secure Watchdog Timer
    • Memory protection function
  • Power Supply Voltage:
    • 1.15 - 1.35 V (CPU core)
    • 4.5 - 5.5 V (I/O, System, AD converter, RD converter)
  • Temperature: Tj= -40 - +150°



Title language Type Format File Size Date
User Guides & Manuals
star RH850/C1M-A User's Manual: Hardware 日本語 Manual - Hardware PDF 21.78 MB
RH850/C1M-A2 Starter Kit User's Manual Manual - Development Tools PDF 1.75 MB
C1M-A1/2 ICUS Driver User's Manual 日本語 Manual - Development Tools PDF 83 KB
C1M-A1/2 ICUS User's Manual HW 日本語 Manual - Development Tools PDF 83 KB
C1M-A1/2 SWDT User's Manual HW 日本語 Manual - Hardware PDF 50 KB
Errata for RH850/C1M-A User's Manual: Hardware 日本語 Manual - Hardware PDF 5.20 MB
RH850/C1M-A Flash Memory User's Manual: Hardware Interface (rev 1.10) 日本語 Manual - Hardware PDF 1.89 MB
RH850/G3MH User's Manual: Software 日本語 Manual - Hardware PDF 5.17 MB
Application Notes & White Papers
RH850/C1M-Ax Clocked Serial Interface H (CSIH) 日本語 Application Note PDF 423 KB
RH850/C1M-Ax Main OSC 日本語 Application Note PDF 316 KB
RH850/C1M-Ax Motor Control Timer (TSG3) 日本語 Application Note PDF 378 KB
RH850/C1M-Ax Serial Communication Interface 3 (SCI3) 日本語 Application Note PDF 204 KB
RH850/C1M-Ax Timer Array Unit D (TAUD) 日本語 Application Note PDF 646 KB
Security-Conscious Debugging Methods for RH850 Devices (Main-Core Debugging) 日本語 Application Note PDF 1.17 MB
CAN Controller Usage: Applications and Frequently Asked Questions Rev.2.03 Application Note PDF 1.81 MB
CAN Communication Time Measurement Solution (E2 Emulator, CS+) 日本語 Application Note PDF 2.09 MB
RV40F DataFlash Usage Application Note PDF 271 KB
Using GHS Compiler with RH850 Application Note PDF 410 KB
R7F701275EABG-C Reliability Report for AEC-Q100 Product Reliability Report PDF 627 KB
C1M-A Tools Introduction Training PDF 1.07 MB
Introduction RH850/C1M-Ax Training PDF 2.21 MB
RH850/C1M-Ax Workshop Training ZIP 13.01 MB
GHS Multi Operating Precautions Release Note PDF 250 KB
[Flyer] E2Emulator[RTE0T00020KCE00000R] 日本語, 简体中文 Flyer PDF 381 KB
Renesas Software and Tools Flash Memory Programmer PG-FP6 日本語, 简体中文 Flyer PDF 417 KB
Semiconductor Package Mount Manual 日本語, 简体中文 Other PDF 10.28 MB
Semiconductor Reliability Handbook 日本語 General Reliability Literature PDF 14.70 MB
Safety and Security Support Program for Automotive 日本語 Brochure PDF 372 KB
Microcontroller solutions for Flyer PDF 2.01 MB


Title language Type Format File Size Date
BSDL for C1M-A1 Software & Tools - Other BSDL 19 KB
BSDL for C1M-A2 Software & Tools - Other BSDL 24 KB
Device File for C1M-A2 Software & Tools - Other DVF 5.42 MB
Device file for C1M-A1 Software & Tools - Other DVF 5.41 MB
CS+ Cycle Accurate Simulator for RH850/C1x V1.04.00 日本語 Software & Tools - Other EXE 3.51 MB
[Evaluation Software] CS+ for CC V8.05.00 (Single Download) 日本語 Software & Tools - Evaluation Software ZIP 719.07 MB
AUTOSAR_RH850_C1M-Ax_MCAL_Ver42.01.00_QM_MP Software & Tools - Other ZIP 31.21 MB
GHS Multi Configuration Files Software & Tools - Other ZIP 6.37 MB
GHS Multi Configuration Files with USB driver Software & Tools - Other ZIP 17.59 MB
E1, E20 Self-Checking Program V.1.01.00 日本語 Software & Tools - Other ZIP 1.21 MB
CS+ for CC common program V8.05.00 日本語 Upgrade - IDE ZIP 243.98 MB
Differential update program V8.05.00 for CS+ for CC common program V8.02.00 or later 日本語 Upgrade - IDE ZIP 80.87 MB
RH850 Compiler CC-RH V2.03.00 日本語 Upgrade - Compiler ZIP 16.50 MB
CS+ Device Information for RH850 V8.04.01 日本語 Upgrade - IDE ZIP 89.87 MB
CS+ Device Information for RH850 V8.04.00 日本語 Upgrade - IDE ZIP 89.88 MB
CS+ QE V9.04.00 日本語 Upgrade - IDE ZIP 4.02 MB
CS+ for CC Emulator Utilities V1.03.00 日本語 Upgrade - IDE ZIP 14.18 MB
RH850 Compiler CC-RH V2.02.00 日本語 Upgrade - Compiler ZIP 16.28 MB
Update Manager V2.03.01 日本語 Upgrade - IDE ZIP 3.44 MB
CS+ Utilities V3.05.00 日本語 Upgrade - IDE EXE 3.62 MB
[Trial Software] RI850V4 V2.01.01 Real-time OS for RH850 Family 日本語 Upgrade - OS ZIP 17.12 MB
Software for Floating License Management V1.00.00 日本語 Upgrade - Compiler EXE 134.85 MB
Parameter File for RH850 Family: RH850 V1.01 日本語 Upgrade - Programmer ZIP 6 KB
USB Driver for Renesas E-Series V1.01.00 日本語 Upgrade - IDE ZIP 5.07 MB

select_allSoftware & Tool Pages

Title Type Description Company
C Compiler Package for RH850 Family Compiler/Assembler C Compiler and IDE for RH850 Family [IDE: CS+]
E2 emulator [RTE0T00020KCE00000R] Emulator On-chip debugging emulator. Also available as a flash memory programmer. [Support MCU/MPU: RA, RE, RH850, R-Car D1, RL78, RX] Renesas
E20 emulator [R0E000200KCT00] Emulator On-chip debugging emulator. Also available as a flash memory programmer. For RX600 or RX700 Series MCU, trace functions and Real-time RAM monitor functions available. For MCUs other than RX600 or RX700, the available debugging function corresponds to that of E1 Emulator. [Support MCU/MPU: RX, RL78, RH850, V850, 78K0R, 78K0, R8C] Renesas
CS+ IDE and Coding Tool Renesas integrated development environment (IDE) [Support MCU/MPU: RH850, V850, RX, RL78, 78K0R, 78K0] Important: CS+ is not generally promoted to U.S. and European customers. Renesas
INCA IDE and Coding Tool INCA tools are used for ECU development and test as well as for validation and calibration of electronically controlled systems in the vehicle, on the test bench, or in a virtual environment on the PC. Renesas
e² studio IDE and Coding Tool Eclipse-based Renesas integrated development environment (IDE).
[Support MCU/MPU: RA, RE, RX, RL78, RH850, Renesas Synergy, RZ]
(Note: You need to install compiler separately as an additional software)
(Note: No separate e² studio installation required for RA FSP, this will be installed as part of the FSP with e² studio installer (Platform Installer) on GitHub.)
RI850V4 V2 Real-time OS for RH850 Family ITRON OS μITRON4.0 Specification real-time OS for RH850 Family [Required IDE : CS+]
RH850 Multicore Model-Based Environment [Embedded Target for RH850 Multicore] Model-Based Development The Embedded Target for RH850 Multicore is a RH850 model-based multicore environment that simplifies complex driving control for the autonomous-driving era. In addition to the multicore support of the PILS tool for automatic configuration of environments, Embedded Target for Renesas CS+, it can also be interlinked with a model-based parallelization tool from eSOL Co., Ltd. Renesas
ASCET-DEVELOPER Other Hardware ETAS ASCET-DEVELOPER (ASCET 7) is a tool for developing application software for embedded systems using graphical models and textual programming notations. Renesas
DESK-LABCAR Other Hardware The ETAS DESK-LABCAR is a professional, compact Hardware-in-the-Loop (HiL) testing system that encourages earlier testing by bringing the testing environment closer to the developer. Renesas
ETK / FETK / XETK – ECU Interfaces Other Hardware The Ethernet-based ETK / FETK / XETK interfaces by ETAS provide direct access to the measurement variables and control parameters of an ECU. Renesas
FL-PR6オプション 簡単書込みスイッチ Programmer (Unit/SW) FL-PR6 の操作部をボックス化。操作性・耐久性・視認性に優れた書込みスイッチです。 Renesas
FL-PR6フラッシュメモリプログラマ Programmer (Unit/SW) FL-PR6フラッシュメモリプログラマ Renesas
PG-FP6 Programmer (Unit/SW) Flash memory programmer [Programming software: Dedicated GUI-based software, the "FP6 Terminal"] [Support MCU/MPU and devices: RA, RE, RX, RL78, RH850, Renesas Synergy, Power Management, Renesas USB Power Delivery Family, ICs for Motor Driver/Actuator Driver, SuperH RISC engine, V850, 78K, R8C] Renesas
Renesas Flash Programmer (Programming GUI) Programmer (Unit/SW) Flash memory programming software [Support MCU/MPU and devices: RA, RE, RX, RL78, RH850, Renesas Synergy, Power Management, Renesas USB Power Delivery Family, ICs for Motor Driver/Actuator Driver, V850, 78KR, 78K0] Renesas
Cycle-Accurate Simulator for RH850 Simulator Instruction simulator that can measure times with accuracy close to actual machine of RH850 under PC environment. For a fee. [Support IDE : CS+]
Simulator for CS+ of RH850 Family Simulator Simulator for CS+ of RH850 Family [Support IDE : CS+] (Note: This product is included in Compiler Package and is not available separately.)
IAR Embedded Workbench® for RH850 Software Package IAR Embedded Workbench is a complete set of development tools with leading optimization technology for creating powerful automotive applications. Renesas
Renesas MCAL Software Package Renesas' MCAL (Microcontroller Abstraction Layer) software drivers can be obtained as a stand-alone software package. Renesas

Recommended Peripheral Devices

Analog/Power Device Recommended Product Features Featured Document Ordering
Power Management IC RAA270000KFT Ideal power solution for RH850/E1x/C1x. Integrated fault diagnosis and monitor functions. RAA270000KFT Data sheet (PDF) Contact Sales
Gate Driver R2A25110KSP IGBT Gate Driver with insulating function (micro-isolator), isolation voltage: 2.5KVrms, excessive current protection function, mirror clamp function, soft turnoff function, etc. R2A25110KSP Datasheet Rev.5.2 (PDF) Contact Sales