The RH850/C1M-Ax ASIL-C microcontroller is equipped with an RH850 Family G3MH CPU core, which operates at a frequency of 1x 240MHz for C1M-A1 and 2x 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 position-sensor output signals into digital angle data and a parallel embedded motor control unit (EMU3), providing a peripheral function set that is ideal for motor control in HEV/EV traction-inverter applications. In addition, C1M-A2 can simultaneously control two motors, e.g. for a starter/generator system. Design resources are available here to help you bring your design to market as quickly as possible.
We have placed all related primary documentation on this page such as user's guides, application notes and collateral. In addition, there are links to Functional Safety and Security documentation requests which can be released under NDA.
- RH850/C1M-A User's Manual: Hardware (PDF | English, 日本語)
- Errata for RH850/C1M-A User's Manual: Hardware (PDF | English, 日本語)
- RH850/G3MH User's Manual: Software (PDF | English, 日本語)
- RH850/C1M-A Flash Memory User's Manual: Hardware Interface (rev 1.10) (PDF | English, 日本語)
- Introduction RH850/C1M-Ax (PDF)
- Easy to Start (ETS) 32-bit MCU RH850/C1M-A for Traction Motor Control (PDF | English, 日本語, 简体中文)
- RH850/C1M-A Motor Control Timer(TSG3) (PDF | English, 日本語)
- RH850/C1M-A Timer Array Unit D(TAUD) (PDF | English, 日本語)
- RH850/C1M-A Clocked Serial Interface H(CSIH) (PDF | English, 日本語)
- RH850/C1M-A Serial Communication Interface3(SCI3) (PDF | English, 日本語)
- RH850/C1M-A Main OSC (PDF | English, 日本語)
- Device File for C1M-A2 (DVF)
- Device file for C1M-A1 (DVF)
- GHS Multi Configuration Files (ZIP)
- GHS Multi Configuration Files with USB Driver (ZIP)
- GHS Multi Configuration Files for Linux (ZIP)
- BSDL for C1M-A2 (BSDL)
- BSDL for C1M-A1 (BSDL)
- Functional Safety Introduction (PDF)
- Functional Safety Documentation - Request Document
- C1M-A1/2 SWDT User's Manual HW
- C1M-A1/2 ICUS Driver User's Manual
- C1M-A1/2 ICUS User's Manual HW
In the Hardware Tools section, we provide links to the MCU starter kits. The starter kit is a fully self-contained hardware and software tool for evaluating microcontroller features and performance and can be used to start development. It includes the Renesas E1 on-chip debugger, access to all I/O pins and serial interfaces such as USB/UART, LIN/SENT, and CAN-FD. The starter kit is the fastest way to get the hardware and software needed to begin development right away. We provide links to the user's manual and software as well as a link to purchase.
|Starter Kit||Description||Featured Documents||Ordering|
|Y-ASK-RH850C1M-A2||The RH850/C1M-A Starter Kit serves as a simple and easy to use platform for evaluating the features and performance of Renesas 32-bit RH850/C1M-A2 microcontrollers.
|| User's Manual
archive Software Package
We also offer a newer and faster emulator for separate purchase. While there is a debugger included in the starter kit, we offer the option here to purchase the newer and faster E2 emulator/debugger for programming and debugging RH850 devices.
In addition to a hardware emulator/debugger, we also offer the Renesas Flash Programmer for free download. The Flash programmer contains a simple-to-use graphical user interface which is ideal for first-time developers.
|Programming Tools||Description||Featured Documents||Ordering|
|E2 Emulator||On-chip debugging emulator for RH850 family and RL78 family. Also available as a flash memory programmer.||User's Manual||Contact Us|
|Renesas Flash Programmer
|The Renesas Flash Programmer provides usable and functional support for programming the on-chip flash memory of Renesas microcontrollers in each phase of development and mass production.
||User's Manual||Free Download|
In the Software Tools section, we have many resources to assist with your MCU project.
For your compiler toolchain needs, we recommend Green Hills and IAR Systems. We provide links to these partner sites which allow you to start your design without delay.
And for designs that require AUTOSAR compliance, we offer AUTOSAR 4.2.2 MCAL (Microcontroller Abstraction Layer) software. It's absolutely free of charge and offered as-is. This package contains SPAL and COM.
We also offer a Model-based Development (MBD) solution. It's available for free download, and it provides support for simulation of a motor control unit.
|Green Hills Multi||
|RH850 Embedded Software Solutions
|IAR Embedded Workbench provides extensive support for RH850 devices. IAR Embedded Workbench is a complete set of development tools with leading optimization technology for creating powerful automotive applications.|
|DaVinci Configurator||DaVinci Configurator for Renesas MCAL||archive Software|
|Renesas MCAL||Renesas' MCAL (Microcontroller Abstraction Layer) software drivers can be obtained as a stand-alone software package. This package includes SPAL and COM based on AR4.2.2.
|Renesas IP Model for MILS||
Renesas IP model for MILS is a model which realizes detailed functions of peripherals on MBD. It can be executed using the license key and the tools listed in the documentation.
The limited trial version software package is available free of charge and as is. In case you want to buy a different fully functional version software package please contact us.
| Model Overview
Necessary Tools for IP Model
|Motor SW Driver Model||Renesas' Motor SW Driver Model is a model which establishes compatibility of peripheral operations of MBD and C code. It can be executed using the license key and the tools listed in the documentation. The limited trial version software package is available free of charge and as is. In case you want to buy a different fully functional version software package please contact us.
Community: Renesas Engineering Community
MathWorks : MBD Solution for RENESAS RH850/C1M-Ax
| Model Overview
Necessary Tools for SW Driver Model
|Smart Configurator||Smart Configurators are utilities for combining software in ways that meet your needs. They simplify the embedding of Renesas drivers in your systems through support for importing middleware and drivers and configuring pins.|| User's Manual
Guide on Sample Projects
In this section, we provide links to instructional videos, workshops, and other introductory materials.
- RH850/C1M-Ax Workshop (ZIP)
- C1M-A Tools Introduction (PDF)
In case you still can't find what you're looking for, we provide links to Frequently Asked Questions and Forums as well as support links to send an inquiry to a Renesas expert about our RH850 products.
RH850 Family FAQs
Find answers to common questions, support articles and development hints.
Contact sales or technical support.
Browse material, post questions and join moderated discussion related to Renesas products.
We have an extensive list of software ecosystem partners, and we provide links to these partners. These are the experts who can help you get your design to market as fast and as reliably as possible.
The MICROSAR evaluation package includes the Vector basic software according to AUTOSAR Classic as well as all necessary software tools.