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
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|---|---|
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Software Design Support
| Title | Description | |||
|---|---|---|---|---|
| CS+ | An integrated development environment that can be used for coding, assembling/compiling, and simulation. (Also included with Renesas Starter Kits.) | |||
| e2 studio | Renesas eclipse embedded studio, known as e² studio, is a complete development and debug environment based on the popular Eclipse CDT project. | |||
| E1 | A standard Renesas on-chip debugging emulator that enables users to carry out ample debugging for real development at low cost. (Also included with starter kits.) | |||
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