DISCONTINUED SOFTWARE NOTICE - This software / tool has been discontinued.
Software support will continue in most cases. Please contact Renesas support with any questions.

The E1 emulator is also available as a flash memory programmer with flash programming software (Renesas Flash Programmer).


Target Devices

Documentation & Downloads

Title Other Languages Type Format File Size Date
CS+ Device Information for RH850 V8.04.01 日本語 Upgrade - IDE ZIP 89.87 MB
CS+ for CC Device Information for RL78 V8.03.00 日本語 Upgrade - IDE EXE 16.35 MB
CS+ for CC Emulator Utilities V1.02.00 日本語 Upgrade - IDE EXE 11.13 MB
[Free-of-charge edition] Renesas Flash Programmer V2.05.03 日本語 Evaluation Software EXE 47.62 MB
Renesas Flash Programmer V2.05.03 Upgrade 日本語 Upgrade - Programmer EXE 47.62 MB


Item Description
For RX or RL78 Family MCU Users E2 emulator or E2 emulator Lite
For RH850 Family MCU Users E2 emulator


  1. No successors to E1 for V850、78K0R、78K0 or R8C* Family MCU Users.
    *E8a emulator supports R8C/3x or R8C/Lx Series MCU.

Programming software

MCUs you use Programming software
For using RX, RL78, or RH850
Learn More >>
Renesas Flash Programmer V3
For using V850, 78K0R, or 78K0
Learn More (E1/E20 emulator (with programming function): for using V850, 78K0R, 78K0, or R8C MCU) >>
Renesas Flash Programmer V2
For using R8C
Learn More (E1/E20 emulator (with programming function): for using V850, 78K0R, 78K0, or R8C MCU) >>
Flash Development Toolkit


[For using RX, RL78, or RH850]

System configuration (Programming with Renesas Flash Progarammer V3)

Refer to the image of the connection with the E1 emulator, below.

System configuration (Programming with Renesas Flash Progarammer V3)

Note: When using with the on-chip debugging emulators, conversion adapter is required depending on the number of pins on the target board.

E1 emulator

Product information



Renesas Flash Programmer V3 (Programming GUI)

Product information



Target Devices

See the following list to find MCUs available in programming with the E1 emulator and the Renesas Flash Programmer V3.

List of MCUs supported by Renesas Flash Programmer V3 (PDF | English, 日本語)

Information on the discontinuation of E1 emulator production and on its successor products

We have already discontinued production of the E1 emulator due to components of the product having reached their EOL (end of life, i.e. end of production). Please click on the following link to confirm the details and our successor products.

>> [Notification] End of Life (EOL) Notice for E1 Emulator (PDF | English, 日本語)