Overview
Description
The RH850/U2B 292-pin piggyback board supports all devices of the RH850/U2B series in a 292-pin package. It can be used standalone or in combination with the mainboard of the RH850 evaluation platform. The modular RH850 evaluation platform, consisting of mainboards and piggyback boards, is a platform for evaluating the features and performance of Renesas 32-bit RH850 microcontrollers.
Features
- Can be used with all mainboards of the RH850 Evaluation Platform
- Socket for mounting the MCU
- MCU is not included and needs to be ordered separately
- 3.3V or 5.0V single supply voltage via 4mm banana jacks (2x red, 1x black)
- Device core voltage VDD either from the onboard voltage regulator or via 4mm banana jack (red)
- 46-pin Aurora Debug Connector to connect a Renesas or third-party emulator
- To connect the E2 OCD emulator, use the included 46-pin to 14-pin adapter Y-RH850-DEBUG-ADAPTER-F14T46
- Offering serial flash programming support for the RH850 on-chip flash memory
- On-board interface connector:
- Renesas High-Speed Serial I/F (RHSIF)
- Renesas High-Speed Bus (RHSB)
- Multichannel Serial Peripheral Interface (MSPI)
- Each pin of the device is accessible via a 2.54mm pitch connector (double row)
- External clock circuit with an exchangeable 16MHz, 20MHz, 24MHz, 25MHz, or 40MHz crystal resonator
- 8x signal LEDs, 3x power supply LEDs (5.0V, 3.3V 1.12V)
- Reset circuit/switch
- Jumpers for device mode selection
Applications
- Zone control ECU
- Domain control ECU
- Communication gateway
- Vehicle motion applications:
- xEV, ICE, TCU
Documentation
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| Manual - Development Tools |
PDF
7.15 MB
The RH850/U2B piggyback board serves as an evaluation board for RH850/U2B devices in 2920-pin BGA package. It can be used in combination with various RH850 main boards to support power‑supply evaluation, communication interfaces, debugging, and system‑level exploration. The document explains the board’s functionality and guides users through its operation.
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| Application Note | LIN Controller Usage: Applications and Frequently Asked Questions Rev.2.01
AI-generated Summary:
The document details the usage of LIN and UART controllers, covering device and IP-level mapping, base addresses, memory vectors, and device adaptation. It includes application examples such as serial and graphics monitor programs, LIN communication tables, and application layer functions. The FAQ section addresses interrupt handling, status information, data reception after errors, self-test failures, and LIN conformance with specification 2.2A. It also provides terminology and issue-solving indexes for quick reference.
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| Application Note |
PDF
1.22 MB
AI-generated Summary:
The autonomous CAN-FD frame-routing gateway enables efficient frame-level routing across multiple RS-CANFD units using DMA and SDMAC, supporting up to 16 CAN channels with minimal CPU involvement except for error handling. It allows selective ID routing, bit rate and protocol conversion between classical CAN and CAN-FD, and implements the Most Priority First Out (MPFO) principle for transmit queues. The gateway uses RX-FIFOs and transmit queues for message forwarding, with configurable reception rules and resource allocation to balance performance and avoid overflow. Limitations include transmit queue overflow risks when routing to slower channels and a maximum of eight destinations per message. The system supports flexible channel configurations and integrates interrupt-driven exit conditions.
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| Application Note | CAN Controller Usage: Applications and Frequently Asked Questions Rev.2.03
AI-generated Summary:
The document details the Renesas CAN Controller's usage, including compatibility, evaluation results, and principles of pretended networking. It covers sample software descriptions, CAN driver functionalities such as initialization, configuration, transmission, reception, and diagnostics. The text also explains mapping of lower CAN drivers, application examples, and frequently asked questions addressing CAN conformance, transceiver issues, bit timing, operation modes, power save modes, transmission, reception, message storage, peripheral bus access, and interrupt handling.
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4 items
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Design & Development
Software & Tools
Software & Tools
| Software title
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Software type
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Company
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| CS+ Renesas integrated development environment (IDE) [Support MCU/MPU: RH850, V850, RX, RL78, 78K0R, 78K0]
(Note: CS+ is not generally promoted to U.S. and European customers.)
(Note: To use Smart Configurator on CS+ for RL78/G23 and RX family MCUs, install the Smart Configurator for each MCU family separately downloading from ”Design & Support” > ”Development Tools” > ”Smart Configurator”)
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IDE and Coding Tool | Renesas |
| RH850 Smart Configurator RH850 Smart Configurator is an automatic driver generation tool for internal peripheral I/O modules through GUI settings.
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Solution Toolkit | Renesas |
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2 items
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Related Boards & Kits
Boards & Kits
RH850 Generation 1 Base-Mainboard of RH850 Evaluation System
The RH850 Generation 1 Base-Mainboard provides communication interfaces to the RH850 Piggyback boards. The modular RH850 Evaluation System, consisting of mainboards and piggyback boards, is a platform for evaluating the features and performance of Renesas 32-bit RH850 microcontrollers.
RH850 Generation 1 Network Mainboard of RH850 Evaluation System
The RH850 Generation 1 Network Mainboard offers additional communication interfaces compared to the RH850 Generation 1 Base Mainboard. The modular RH850 Evaluation System, consisting of mainboards and piggyback boards, is a platform for evaluating the features and performance of Renesas 32-bit... Read More
RH850 Generation 2 Mainboard of RH850 Evaluation System
The RH850 Generation 2 Mainboard provides communication interfaces to the RH850 Piggyback boards. The modular RH850 Evaluation System, comprising mainboards and piggyback boards, serves as a platform for evaluating the features and performance of Renesas' 32-bit RH850 microcontrollers.
RH850 MCUs Mainboard Evaluation System
The RH850 MCUs Mainboard Evaluation System provides communication interfaces to the RH850 MCU piggyback boards, offering compatibility across the entire RH850 MCU line for scalable development. The modular evaluation system consists of mainboards and piggyback boards, allowing users to evaluate... Read More
Product Options
| Part Number | Status | Stock | Sampleable | Pb (Lead) Free | ECCN (US) | HTS (US) | RoHS Compliant | China RoHS Compliant |
|---|---|---|---|---|---|---|---|---|
| Y-RH850-U2B-292PIN-PB-T1-V1 | Active | Out of Stock | N/A | No | 3A991.a.2 | 8471.50.0150 | No | No |
Videos & Training
To practically reduce the overall number of ECUs in a car, their functions must become integrated as multiple virtual ECUs on a shared physical ECU. A solution to this challenge is the introduction of a hypervisor-related SW system – developed in cooperation between ETAS and Renesas.
Resources
Support
Support Communities
- GDB port number not retrieved from console
Trying to connect to the RH850 piggyback board with E2 emulator from the E2Studio, it generates this error, This is from the console window, GDB Server for Renesas targets. Version 10.1.0.v20241218-130351 [2b0b72b9] (Dec 18 2024 15:32:34) Starting server with the following options: Raw options ...
May 8, 2025
Support Communities
Knowledge Base
