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RH850 Datasheet(PDF) 1 Page - Renesas Technology Corp |
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RH850 Datasheet(HTML) 1 Page - Renesas Technology Corp |
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1 / 206 page  Datasheet RH850/U2B Renesas microcontroller Section 1 Overview 1.1 Outline This RH850/U2B is a 32-bit single-chip microcontroller with multiple CPUs, Code Flash, Data Flash, RAM modules, DMA controllers, A/D converters, timer units and many communication interfaces that are used in the automotive applications. This microcontroller conforms to the Automotive Safety Integrity Level (ASIL) that is highly demanded in the recent automotive field (ASIL D level). RH850/U2B main features are as follows: (1) RH850 multi-core CPU This microcontroller contains multi RH850G4MH2 cores support RISC-type instruction sets and have significantly improved the instruction execution speed with basic instructions (one clock cycle per instruction) and the optimized 10-stage pipeline configurations. Furthermore, this product also supports multiplication instructions using a 32-bit hardware multiplier, saturated product-sum operation instructions, and bit manipulation instructions as instructions best suited for various fields.In addition, this product also support CPU virtualization function. Two-byte basic instructions and high-level language instructions improve object code efficiency for the C compiler and reduce the program size. Furthermore, this product is suited for advanced real-time control applications by offering a high-speed response time including the processing time of the onchip interrupt controller. (2) On-Chip Code Flash and Data Flash This microcontroller has high-speed Code Flash from which CPU can fetch the instructions and the constant data. Code Flash with a capacity of up to 24MB can be reprogrammed when the chip is implemented in the application system. This chip also has Data Flash capable of EEPROM emulation with a capacity of up to 512 KB and up to 160 KB exclusively for ICUMHB. (3) Rich peripheral functionality This microcontroller supports common communication interfaces such as SPI as well as automotive-oriented communication interfaces such as Ethernet, RHSIF, FlexRay, CAN-FD, LIN, SENT and PSI5. As internal peripheral modules, this microcontroller incorporates A/D Converter, System Timer, Generic Timer Module, and a dedicated Peripheral Interconnection module which connects the functionalities of these peripherals. (4) Functional Safety support This microcontroller includes several dedicated functionalities such as Dual-Core Lockstep configuration for CPU, the memory protection with ECC/EDC on data and the address feedback mechanism, the bus protection with ECC/EDC on data and address, the peripheral module protection, and clock monitors to support the functional safety standard (ISO26262) required in the automotive applications. (5) Security support This microcontroller supports various security features. The Intelligent Cryptographic Unit - Master (ICUMHB) has a dedicated secure CPU (RH850 G3K) and some secure peripherals such as AES engines, a public key cryptography coprocessor, an engine that supports a HASH function based on SHA and Random Number Generator (RNG). This microcontroller also realizes the HW-level domain separation between non-secure and secure domains. The internal resources such as Code and Data Flash can be assigned to either a non- secure or secure domain, and the secure domain is protected against non-secure accesses by the HW mechanism. This microcontroller also has the protection scheme for debug and test functionality. The RH850/U2B-EVA, U2B-FCC, U2B10 and U2B6 are products of the single-chip microcontroller RH850 series from Renesas Electronics. This section gives an overview of the RH850/U2B-EVA, U2B-FCC, U2B10 and U2B6. R01DS0492EJ0100 Rev.1.00 Mar.31.2025 Page 1 of 206 |
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