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E1 emulator [R0E000010KCE00]

The E1 emulator is an on-chip debugging emulator and flash programmer which supports the major Renesas MCUs. This economical development tool provides basic debugging functionality. Available optional products, such as the hot-plug-in adaptor, allow you to extend debugging functionality or adjust connections.



New on-chip debugging emulators  - Recommended for customers who are considering to purchase the E1 or that users -


[For RX or RL78 Family MCU Users]

E2 emulator Lite is available features equivalent to the E1 at a more affordable price. Learn More >>


[For RH850, RX, or RL78 Family MCU Users]

E2 emulator is available high-speed download up to twice as fast as the E1 and solutions to reduce development time.

Learn More >>



Release Information

Purpose of use Software to be used Target devices Note1 Latest Version Released     Operating Environment
On-chip Debugging


*Evaluation Software Download

RX, RL78, RH850

[More details]

List of Functions Supported by CS+

V6.01.00 Jan. 22, 2018 Operating Environment

e² studio

*Evaluation Software Download

RX, RL78, RH850 Note3

[More details]

*See "Release notes".

V6.3.0 May. 21, 2018
IAR Embedded Workbench Note2 RX, RL78, RH850 Contact IAR Systems.
Green Hills Multi Note2 RH850 Contact Green Hills Software.
iSYSTEM winIDEA Note2 RL78, RH850 Contact iSYSTEM.
Flash Programming

Renesas Flash Programmer V3

*Evaluation Software Download


[More details]

List of MCUs supported by Renesas Flash Programmer

V3.04.00 Jan. 22, 2018 Operating Environment


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.

3: Debug support only  (For building, use the IAR Embedded Workbench compiler made by IAR systems or the MULTI compiler made by Green Hills Software,Inc.)



  • Enhanced functions for faster debugging
    In addition to basic debugging functions, the E1 supports execution time measurement and hot plug-in functionality (dependent on the MCU) that allows connection to the user system while the program is running.
  • 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).



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.

Connection system

Break function

Trace function

Memory reference and change while

 executing the program

Performance measurement

Hot plug-in

See On-chip Debuggers Performance Property.
On-board programming Supported
User interface 14-way cable [7614-6002 (product of 3M Co., Ltd.) and 2514-6002 (product of 3M Limited)]
PC Interface USB 2.0, full speed and high speed
Target board connection Via attached user I/F cable (Connection signals vary by the target MCU type.)
Power supply Up to 200mA (3.3V or 5V)
Power voltage 1.8V to 5.5V (depending on the target MCU)
External dimension
(Except the protruding parts)
109.4 mm×53.2 mm×18.6 mm
Conformance with overseas standards European Standards: EN 55022 Class A, EN 55024
US FCC Standard: FCC part 15 Class A




  • E1 Emulator main unit
  • USB cable
  • User's system I/F cable
  • Software CD-ROM
    • Installation guide
    • Self-Checking Program
    • USB driver
    • E1/E20 Emulator User's Manual



System Configuration


Optional Products

Following devices are optionally provided to facilitate the use of the E1 and E20 emulators.
Please make sure to choose the devices that match the type of your emulators and MCUs.




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

RX RL78 RH850 V850 78K R8C
  • 14-Pin to 38-Pin Conversion Adapter for the E1 Emulator
  • R0E000010CKZ00
  • An adapter for converting the 14-pin/2.54-mm pitch connector on the head of the emulator user interface cable to a 38-pin/0.5-mm pitch connector
  • 38-Pin Conversion Adapter for the E1 Emulator 
  • QB-F14T38V850-01
  • An adapter for changing to a 14-pin user interface for connection to a Mictor connector mounted on a V850-based target system
  • Small Connector Conversion Adapter for the E1 Emulator
  • R0E000010CKZ11
  • 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
  • 14-Pin to 16-Pin Conversion Adapter for the E1 Emulator 
  • QB-F14T16-01
  • An adapter for changing the 14-pin/2.54-mm pitch connector on the head of the E1 emulator user interface cable to a MINICUBE2-compliant 16-pin/2.54-mm pitch connector


Hot-plug Adapter: Allows you to connect the emulator without having to turn off the system (Hot Plugin).

RX RL78 RH850 V850 78K R8C
  • Hot-plug Adapter for the E1 Emulator
  • R0E000010ACB00
  • An adapter that allows connection of an emulator to a running user system without turning the power off
Note1 Note1 Note1 Note1    

1: Refer to [On-chip Debuggers Performance Property] for the applicable MCU groups.


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

RX RL78 RH850 V850 78K R8C
  • Isolator for the E1 Emulator
  • R0E000010ACB10
  • (For the RX or the R8C family)
  • Isolator for the E1 Emulator
  • R0E000010ACB20
  • (For the RL78 or the RH850 family)


Low voltage OCD Board: Enables you to debug the target MCU, even if the adapter voltage is not high enough to reprogram internal Flash ROM. This product is used between the emulator and a user's system, and is united by the in-circuit connection with the user's system.

  • Low voltage OCD Board for RL78/G10 (10-pin/16-pin)
  • R0E510Y47LVB00
  • An OCD board for debugging an RL78/G10 MCU (10-pin or 16-pin) with an adapter voltage below 4.5 V


Debug MCU Board : Enables the incircuit 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.


Debug MCU Board for RH850  Supported devices for Debug MCU Board for RH850 Family [PDF]

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. (Buy or Sample)>>


System comfiguration

Target Devices


As the supported devices are different depending on the software you use, refer to the "Target devices" in Release information.

Below you will find information to support the development of your application.


Information supporting development tools

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 MCU's.
Tool News Tool release information and other important information.
Operating Environment Information on system requirements and operating environment for the latest
version of tools.
Tool Environmental Information Information on RoHS compliance of tools.
Info on Discontinued Products A list of Renesas software and tools that have been discontinued and
are no longer being offered for new projects.



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Tool Information

Tools Orderable Part Number(s) Production Status Manufacturer Suggested Single Tool Price Description Distributor Stock Distributors Distributor Purchase
R0E000010KCE00 Mass Production Renesas call 24 Avnet Europe
2 Conrad
307 Digi-Key
67 Farnell
665 RS Components
15 Rutronik

Note :Distributor Prices may vary from the stated budgetary price. The pricing and availability information on this site is based on information provided by Renesas’ authorized distributors and is subject to change without notice. By selecting a distributor from this page, you will be redirected from the Renesas site to the distributor’s website to complete a purchase. The distributors are independent from Renesas and maintain their own terms and conditions of sale. Renesas disclaims all representations and warranties, express and implied, with respect to transactions between distributors and their end customers.