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描述

As a sophisticated on-chip debugging emulator and flash programmer, the E20 emulator provides enhanced trace functions and RAM monitoring functions for RX600 and RX700 products, and the full basic debugging functionality equivalent to the E2 emulator Lite. It is capable of large-capacity tracing for enhanced debugging in combination with MCUs that incorporate trace output functionality.

特性

  • Enhanced functions for faster debugging [Learn More :On-chip Debuggers Performance Property]
    In addition to all the debugging functions of the E2 emulator Lite, the E20 supports powerful functionality such as larger trace capacity and realtime RAM monitoring. In addition, coverage function is supported on some MCUs of RX64M and RX71M Group.。
  • Also functions as an on-board programmer.
    Can be used as an on-board programming tool after the debugging, enabling smooth evaluation of the MCU.
  • Optimally suited for evaluating analogue functions such as A/D and D/A properties.
    Electrical characteristics are the same as those of the actual MCU, since the actual MCU is used for debugging.
  • Serial, JTAG and LPD connections are supported.
    For the communication system, serial, JTAG or LPD connection can be selected as required by the type of the target MCU.
  • Simple connection
    Connection requires only a connector mounted on the user system, thus significantly reducing the possibility of loose connection.
  • Environmentally friendly material
    The casing is made of plant-derived polylactide (PLA).
  • Learn More

发布信息

Purpose of useSoftware to be supportedTarget devicesNote1Operating Environment
On-chip DebuggingCS+
*Evaluation Software Download
RX, RL78, RH850
[Details] Functions Supported by CS+ (XLSX) (XLSX | English, 日本語)
Operating Environment
e² studio
*Download
RX
[Details] Release notes
IAR Embedded WorkbenchNote2RX, RL78, RH850Contact IAR Systems.
Green Hills MultiNote2RH850Contact Green Hills Software.
Flash ProgrammingRenesas Flash Programmer V3
*Evaluation Software Download
RL78, RX, RH850
[Details] List of MCUs supported by Renesas Flash Programmer V3 (PDF | English, 日本語)
Operating Environment

Notes:
1. For details when using devices of V850 family, 78K0R, 78K0, or R8C family, see E1/E20 software for V850, 78K0R, 78K0, or R8C MCU >>
2. As for tools produced by partners, contact them directly.

FAQ

See all related FAQs

目标设备

Target Family

类型 文档标题 日期
升级 - IDE
登录后下载 ZIP 5.07 MB 日本語
软件和工具 - 其他
登录后下载 ZIP 1.21 MB 日本語
升级 - 编程器
登录后下载 ZIP 730 KB 日本語
3 项目
类型 文档标题 日期
手册 - 开发工具 PDF 1.53 MB 日本語
工具新闻 - 通告 PDF 121 KB 日本語
This is a tool news announcing the discontinuation of the E20 emulator. This document explains the final order acceptance date and the successor product. The final order is May 31, 2026.
手册 - 开发工具 PDF 230 KB 日本語
This is a feature list summarizing the capabilities of Renesas' on-chip debuggers for each microcontroller. For the E2 Emulator, E2 Emulator Lite, E1 Emulator, E20 Emulator, MINICUBE2, E10A-USB, and E8a on-chip debuggers, it details the debugging capabilities supported for each corresponding microcontroller, including connection methods, break functions, trace functions, and more.
手册 - 开发工具 PDF 985 KB 日本語
工具新闻 - 注意事项 PDF 209 KB 日本語
应用说明 PDF 1.87 MB 日本語
AI 生成的摘要: This document explains how to port projects from CS+ to e2 studio for the Renesas RX family using emulators such as E2 Lite, E2, and E20. It details the differences in emulator settings, connection configurations, and debugging operations within e2 studio. Users learn how to open CS+ projects in e2 studio, configure emulator connections via the Debug Configurations window, and manage target devices. The document covers debugging features including breakpoints, tracing, memory and register manipulation, and performance measurements, facilitating smooth migration and effective debugging in the e2 studio environment.
工具新闻 - 推介工具 PDF 864 KB 日本語
工具新闻 - 通告 PDF 502 KB 日本語
工具新闻 - 注意事项 PDF 183 KB 日本語
工具新闻 - 发布公告 PDF 92 KB 日本語
工具新闻 - 发布公告 PDF 83 KB 日本語
应用说明 PDF 1.17 MB 日本語
AI 生成的摘要: Debugging methods focus on devices with an initially stopped CPU core and those transitioning to standby modes to optimize power consumption. Key capabilities include verifying core activation, measuring execution times for core activation and standby transitions, and restarting debugging at critical points such as core activation or MCU wake-up. Supported devices include various RH850 series MCUs. The document details environment setup, debugging configurations in CS+ and MULTI IDEs, and specific debugging techniques for different standby modes. It also covers precautions and terminology related to debugging and device operation.
工具新闻 - 注意事项 PDF 243 KB 日本語
工具新闻 - 注意事项 PDF 150 KB 日本語
工具新闻 - 注意事项 PDF 147 KB 日本語
工具新闻 - 注意事项 PDF 159 KB 日本語
工具新闻 - 注意事项 PDF 92 KB 日本語
工具新闻 - 注意事项 PDF 127 KB 日本語
手册 - 开发工具 PDF 340 KB 日本語
手册 - 开发工具 PDF 954 KB
手册 - 开发工具 PDF 1.12 MB
手册 - 开发工具 PDF 1.07 MB
手册 - 开发工具 PDF 821 KB
工具新闻 - 注意事项 PDF 168 KB 日本語
手册 - 开发工具 PDF 292 KB 日本語
手册 - 开发工具 PDF 282 KB 日本語
手册 - 开发工具 PDF 279 KB 日本語
手册 - 开发工具 PDF 337 KB 日本語
手册 - 开发工具 PDF 303 KB 日本語
手册 - 开发工具 PDF 318 KB 日本語
手册 - 开发工具 PDF 331 KB 日本語
手册 - 开发工具 PDF 683 KB 日本語
手册 - 开发工具 PDF 1.73 MB 日本語
手册 - 开发工具 PDF 420 KB 日本語
手册 - 开发工具 PDF 412 KB 日本語
手册 - 开发工具 PDF 423 KB 日本語
指南 PDF 3.29 MB 日本語
指南 PDF 3.36 MB 日本語
应用说明 PDF 573 KB 日本語
AI 生成的摘要: The guide addresses common startup issues with the E1/E20 On-Chip Debugging Emulator. It explains warning messages about project file restoration due to version mismatches in CubeSuite+ and advises upgrading to the latest version. It highlights errors caused by missing CC-RX compiler installations and instructs users to install the compiler. The guide also details handling version differences in the CC-RX compiler, allowing debugging to continue if compatible or requiring version adjustments via the property panel.
手册 - 开发工具 PDF 280 KB 日本語
手册 - 开发工具 PDF 269 KB 日本語
手册 - 开发工具 PDF 306 KB 日本語
手册 - 开发工具 PDF 2.54 MB 日本語
指南 PDF 2.00 MB 日本語
应用说明 PDF 415 KB 日本語
AI 生成的摘要: This guide addresses common startup issues with the E1/E20 On-Chip Debugging Emulator. It explains warning messages such as missing or incompatible toolchains, absent target device drivers, unrecognized emulator serial numbers, and device ID mismatches. Solutions include installing the correct compiler and software, verifying USB connections and power, refreshing device lists, and selecting the correct MCU device in settings to ensure proper debugger operation.
手册 - 开发工具 PDF 178 KB 日本語
手册 - 开发工具 PDF 298 KB 日本語
手册 - 开发工具 PDF 298 KB 日本語
手册 - 开发工具 PDF 153 KB 日本語
应用说明 PDF 525 KB 日本語
AI 生成的摘要: The External Flash Definition Editor (EFE) enables creation of custom write programs for flash memory devices with unsupported command sets. Users customize sample C source programs, link header and library files, then create RFD and USD files for use with emulator software. The custom program must not exceed 8,192 bytes in memory size and 256 bytes in stack size. The development environment requires specific sample files, a suitable C/C++ compiler, and emulator tools.
手册 - 开发工具 PDF 140 KB 日本語
手册 - 开发工具 PDF 136 KB 日本語
工具新闻 - 发布公告 PDF 309 KB
53 项目

Specifications

Note that some functions shown here may not be supported under the IDE you use. Performance property and Connection system also vary depending on the MCU type. The specific features of the E20 emulator such as the large trace function and the real-time RAM monitoring function are available only when using with MCUs of the RX600 or RX700 series. When using with MCUs of other than the RX600 or RX700 series, the supported functions for debugging correspond to those of the E2 emulator Lite.

Important : On the use of specific features of the E20 emulator
The signals used for the large trace and real-time RAM monitoring functions of the E20 emulator are multiplexed with those for other peripheral functions. Whether the large trace and real-time RAM monitoring functions of the E20 emulator are available depends on the MCU, package, and peripheral functions that you will be using.
We recommend that you read the user’s manual for the MCU you are using and check if there is any conflict of functions on the trace pins.
You can use the Smart Configurator to make pin settings through a GUI and check for conflicts between multiplexed functions.
If the MCU you are using is supported by a debug MCU board and you use the board, all of the MCU pins are available for use by the user system.

ItemDescription
  • Connection system
  • Break function
  • Trace function
  • Memory reference and change while executing the program
  • Performance measurement
  • Real-time RAM monitoring
  • C0 Coverage
  • Hot plug-in
See On-Chip Debugger Functional Overview (PDF | English, 日本語).
On-board programmingSupported
User interface38-way cable
[2-5767004-2 (product of Tyco Electronics Corporation)]
14-way cable Note1
[7614-6002 (product of 3M Co., Ltd.) and 2514-6002 (product of 3M Limited)]
PC InterfaceUSB 2.0, full speed and high speed
Target board connectionVia attached user I/F cable (Connection signals vary by the target MCU type.)
User's resource possessionSome MCUs possess the port peripheral functions.
Power supplyNot supported
Power voltage1.8V to 5.5V (depending on the target MCU)
External dimension
(Except the protruding parts)
114.9 mm×74.2 mm×19.2 mm
Conformance with overseas standardsEuropean Standards: EN 55022 Class A, EN 55024
US FCC Standard: FCC part 15 Class A

Note:

  1. The available debugging function corresponds to that of E2 Emulator Lite. Even when using with E20, the large trace function and Real-time RAM monitoring, specific functions of E20, are not supported.

Components

  • E20 Emulator main unit
  • USB cable
  • User's system I/F cable
  • 38-pin/14-pin converter adapter [R0E000200CKA00] *Available for purchase in single unit.
  • Software CD-ROM
    • Installation guide
    • Self-Checking Program
    • USB driver
    • E1/E20 Emulator User's Manual

System Configuration

图像

Refer to Release Information in this page for the information of the software on PC

Optional Products

Following optional products are provided to facilitate the use of the E20 emulators. Please make sure to choose the products that match MCUs you use.

Conversion Adapter

Converts the number and pitch of the pins in the connector for the connection with the emulator.

 MCUs
RXRL78RH850V85078KR8C
38-Pin Conversion Adapter for the E1 Emulator
QB-F14T38V850-01
QB-F14T38V850-01 ユーザーズ・マニュアル (E1エミュレータ用14ピン/38ピン変換アダプタ) / QB-F14T38V850-01 User's Manual (14-Pin to 38-Pin Conversion Adapter for E1 Emulator) (PDF)
An adapter for changing to a 14-pin user interface for connection to a Mictor connector mounted on a V850-based target system
lens
38-Pin to 14-Pin Conversion Adapter for the E20 Emulator
(Bundled with the E20 Emulator)
R0E000200CKA00
R0E000200CKA00 User's Manual (38-Pin to 14-Pin Conversion Adapter for E20 Emulator) Rev.1.00 (PDF | English, 日本語)
An adapter for converting the 14-pin/2.54-mm pitch connector on the head of the emulator user interface cable to a 14-pin/1.27-mm pitch connector
lenslenslenslenslenslens

lens Available | — Not Available

Isolator

Enables debugging in an environment where there is a difference in potential between the user system GND and the host PC GND.

 MCUs
RXRL78RH850V85078KR8C
Isolator for the E20 Emulator
R0E000200ACB10
R0E000200ACB10 User's Manual (Isolator for E20 Emulator) Rev.2.00 (PDF | English, 日本語)
(For the RX family)
lens Note1

lens Available | — Not Available

Note:

  1. The isolator is not usable in combination with the debug MCU board for the RX71M group.

Debug MCU Board

Enables the in-circuit connection of the emulator with the user's system. This board allows you to use enhanced debugging functions. The applicable debugging function varies depending on the MCU type.

 MCUs
RH850

Debug MCU Board for RH850
Supported devices for Debug MCU Board for RH850 Family [On-chip Debugger] (PDF | English, 日本語)
This board enables use of the trace function even if the target MCU does not have a trace function. The Debug MCU Board is for use in combination with a separately available 176-pin (with internal trace function) MCU of the RH850/F1L group.

Note: The package of the Debug MCU Board does not include the MCU. Please purchase it separately. For details, contact either a Renesas Electronics Corporation representative (responsible for sales) or distributor.

lens

lens Available | — Not Available

System configuration
图像
System Configuration
 MCUs
RX
Debug MCU Board for RX Family
Supported devices for Debug MCU Board for RX Family [On-chip Debugger] (PDF | English, 日本語)
This board enables the use of all user port pins of the MCU in the user system. The E20 emulator occupies some of the pins for control of the emulator and the output of trace information, and these pins must be connected with a 38-pin connector attached to the E20 emulator on the user system. However, the Debug MCU board enables the use of all user port pins because connection with a 38-pin connector on the user system is not required.
You can also obtain trace information even while using an MCU that does not have a trace function.
lens

lens Available | — Not Available

System configuration
图像
System configuration

Design Support

E20 emulator [R0E000200KCT00] Information for Users

知识库

  1. E0210002, E0204001, C0602202 (调试工具启动失败) [RH850]

    ... 全ID。删除闪存后,安全ID将全部为F("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"(32位))。 ※ 此回答在适用产品中记载的仿真器也相同。     Suitable Products CS+ (formerly CubeSuite+) E2 Emulator [RTE0T00020KCE00000R] E20 [R0E000200KCT00] E1 [R0E000010KCE00] Discontinued product

  2. E0210002, C0602202 (由于ID代码错误导致调试工具启动失败) [RL78]

    ... 关于闪存及调试工具中安全ID的详情,请参照以下内容。E1/E20/E2 Emulator, E2 Emulator Lite Additional Document for User’s Manual (Notes on Connection of RL78)  “安全ID的设置” ※ 此 ...

  3. E1203124, E0204001(程序下载失败)[RL78]

    ... 具属性>[链接选项]选项卡[设备]>[设置调试监控区域]:是(-DEBUG_MONITOR) "E1/E20/E2 Emulator, E2 Emulator Lite Additional Document for User’s Manual (Notes on Connection of RL78) " -> "3.3 占用的微机 ...

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