The RH850/P1M microcontroller is low power consumption and has up to 2MB flash and up to 128KB RAM lineup and enhanced motor control timer, CAN interface, digital interface for sensors such as SENT and PSI5, and safety functions such as lockstep CPU, ECC, BIST (Built-in Self Test) and ECM (Error Control Module), and is suitable for chassis systems. Design resources are available here to help you get 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.

User Manuals

Collateral Materials

Application Notes

Functional Safety

Hardware Tools

Programming Tools

Renesas offers a fast emulator/debugger for programming and debugging RH850/P1x devices. 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. pdf_icon_for_table.png User's Manual Contact Us
Renesas Flash Programmer
(Programming GUI)
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.
  • A simple GUI makes operations easy, even for first-time developers
  • PC-controlled programming via the E1 emulator or E2 emulator, a serial or USB connection
pdf_icon_for_table.png User's Manual Free Download

Software Tools

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 4.0.3 MCAL (Microcontroller Abstraction Layer) software. It's absolutely free of charge and offered as-is. This package contains the SPAL software.

Compiler Toolchain

Company Company Logo Description
Green Hills Multi
Green Hills Software Logo
RH850 Embedded Software Solutions
  • Multi development environments
    Quickly develop, debug, test, and optimize embedded and real-time applications
  • Green Hills Optimizing Compilers
    Generating the smallest and fastest code from C, C++, and Ada
  • simrh850
    Full-feature multi-core instruction-accurate simulation tool that allows faster development and deployment of V850 and RH850 multi-core projects. Support for various shared-memory and isolated architectures, as well as complete support for RH850 hyper-threading capabilities
IAR Systems
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.

MCAL Software

Software Description Download
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 based on AR4.0.3.
  • SPAL (including ADC, DIO, FLS, GPT, ICU, MCU, PORT, PWM, SPI, WDG)
The software package is available free of charge and as is. In case you want to buy a different software package please contact us.
archive Software


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/P1x products.


FAQ Icon

RH850 Family FAQs

Find answers to common questions, support articles and development hints.

Contact Support Icon

Contact Support

Contact sales or technical support.

Forum Icon


Browse material, post questions and join moderated discussion related to Renesas products.