RH850/E1M-S2 microcontrollers are suitable for engine control and at 320 MHz have the highest class of operating frequency among automotive microcontrollers. They are also equipped with large-capacity on-chip code flash and RAM.
The CPU core of the RH850/E1M-S2 delivers 30% better performance for engine control system applications than its predecessor. The RH850/E1M-S2 supports the SENT communication standard for sensor information, and also supports not only CAN FD for higher speed in-vehicle networks, but also ICU-S for the automotive security that will be demanded by cars going forward. It also has many built-in functions for realizing functional safety (ISO 26262) that facilitate certification.
Main Solutions
Key Features:
| Item | RH850/E1M-S2 | |
|---|---|---|
| CPU Core | 240/320 MHz lockstep core, FPU (RH850G 3MH core) | |
| Peripheral Control Unit (PCU) | 80 MHz (RH850 G3K core) | |
| Memory | Program Flash | 4 MB |
| SRAM | 320 KB | |
| Data Flash | 64 KB | |
| Instruction Cache | 8 KB | |
| Clock | Up to 20 MHz (clocked input to EXTAL pin), multiply-by-12 / multiply-by-16 by built-in PLL, internal ring oscillator, built-in SSCG | |
| Data Transfer | DMAC | 16 channels |
| DTS | 128 channels | |
| Timer | OS Timer (OSTM) | 3 channels |
| Watchdog Timer (WDT) | 2 channels | |
| Secure Watchdog Timer (SWDT) | 2 channels | |
| Engine Control Timer (ATU-IV) | 1 unit | |
| Autonomous Pulse Adaptor (APA) | 1 unit | |
| Motor Control Timer (TSG2) | 2 channels | |
| Communication Interfaces | Serial Communication Interface (SCI3) | 4 channels |
| Clock Synchronous Serial Interface (CSIH) | 4 channels | |
| Renesas High-Speed Bus (RHSB) | 2 channels | |
| LIN Master Interface (RLIN2) | 1 channel | |
| CAN/CAN FD (Selectable) | 4 channels | |
| FlexRay | 1 channel | |
| Single Edge Nibble Transmission （RSENT） | 6 channels | |
| Analog | Successive Approximation A/D Converter | 48 channels |
| Delta-Sigma A/D Converter | 8 channels | |
| Digital Filter Engine (DFE) | 16 channels | |
| Safety | Multi-Input Signature Generator (MISG), CRC, Error Control Module (ECM), other | |
| Security | Built-in ICU-S hardware security module (compliant with SHE/EVITA-Light automotive security standard) | |
| Code flash read/write protection that uses ID authentication | ||
| Debugging & Calibration | NEXUS, Low-pin Debug Unit (LDU), Advanced User Debugger (AUD) | |
| Power Supply Voltage | 1.15 to 1.35 V (CPU core), 3.0 to 3.6 V (system), 4.5 to 5.5 V (I/O) | |
| Packages | 252-pin BGA (17 × 17; 0.8 mm), 304-pin BGA (19 × 19; 0.8 mm) | |
Block Diagram:
You can find an explanation of orderable part numbers here.
Resources for Software and Hardware
| Title | Description |
|---|---|
| My Renesas | Create a My Renesas account to use our tool download services, receive e-newsletter/update notifications, and take advantage of our other services. |
| e-learning | Information for studying and learning about microcontrollers and microprocessors. |
| FAQ | Frequently asked questions and useful hints for development. |
| Forum | A forum and community site to share technical information, questions and opinions with others who use Renesas products. |
Software Design Support
| Title | Description |
|---|---|
| CS+ | This integrated development environment (IDE) can be used for coding, assembly, compiling, and simulation. |
| e² studio | This integrated development environment (IDE) is based on the popular combination of the open-source Eclipse IDE and its CDT plug-in that enables C/C++ language development. |
| E2 emulator | This on-chip debugging emulator has advanced features that improve the efficiency of development. In addition to the basic functions from debugging to flash programming, this emulator supports hot plug-in and external triggers as standard items. This emulator also helps to reduce development time by downloading at high speeds (compared to the E1 emulator) and the ability to work in combination with various solutions such as the CAN communication time measurement solution by systems under development. |
| E1 emulator | This on-chip debugging emulator is a standard model which provides basic debugging functions (production is to be discontinued at the end of December 2019). |
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