The IE850 is equipped with a rich variety of debugging functions, such as event, trace, and time measurement functions.


  • Large Trace Capacity
    The IE850 supports a larger (512-KB) frame for tracing than the earlier product, the IECUBE for the V850 family, which supported a 256-KB frame as the capacity for trace information. Furthermore, you can also extend the trace capacity to 2.25 GB (128 Mframes) by using the optional QB-V850E2-SP product, which is usable with the Multi IDE from Green Hills Software, LLC.
  • The CS+ IDE from Renesas can realize various analytical features such as the percentage of functions executed, graphical display of variables, and visualization of function call relationships.
  • Rich Variety of Debugging Functions
    As a full-spec. emulator, the IE850 is equipped with a rich variety of debugging functions. Along with basic functions such as stepped execution, breaks and RAM monitoring, it also supports time measurement, tracing and measurement of coverage for more efficient system development.
  • Superb Versatility
    The IE850 is used by combining the IE850 main unit part with a pod section. By exchanging emulation pods to suit the MCUs you are using, the emulator can support any series of RH850 and V850E2M microcontrollers.

Release Information

Software to be usedTarget devicesLatest VersionReleasedOperating Environment
*Evaluation Software Download
RH850Note1, V850
[Details] Functions Supported by CS+ (PDF | English, 日本語)
V8.11.00Note3Jan. 22, 2024Operating Environment
IAR Embedded WorkbenchNote2RH850, V850For the details, contact IAR Systems.
Green Hills MultiNote2RH850, V850For the details, contact Green Hills Software.


  1. Rewrite the data in the QB-V850E2 (main unit) when debugging systems that include MCUs of the RH850 family. For the details, see Data rewriting for debugging the RH850 family MCU (Preparation for the system).
  2. As for tools produced by partners, contact each company directly.
  3. If you hope to continue to use the product on the Windows 32-bit version, use the CS+ IDE V8.06 and earlier that supports the 32-bit versions.
    [Notification] End of Support: CS+ Integrated Development Environment for Windows 32-Bit Versions (PDF | English, 日本語)
  • As target devices, In addition to the above, the IE850 supports MCUs, R7F701417 and R7F701437, as well.

Details of upgrade (See Tool News)

Target Devices


Additional Details

Specifications of IE850 Main Unit (QB-V850E2)

Host machine interfaceUSB (USB2.0, High-speed)
Power supply for emulatorSupplied from the AC adapter separately available
Emulator main unit external dimensions (mm)104(W) x 104(D) x 43(H)
Emulator main unit weightApprox. 300 g
Conformance with overseas standardsEuropean Standards: EN 55022 Class A, EN 55024
US FCC Standard: FCC part 15 Class A


  • Emulator main unit (QB-V850E2)
  • USB interface cable
  • Stick for unplugging EA from POD

Note that optional products such as emulation PODs or the AC adapter, or converter boards are sold separately.

System Configuration

System Configuration

Optional Products (Sold Separately)

  • Emulation POD
  • Exchange adapter
  • Emulator connector (YQ Connector)
  • Target connector
  • Space adapter
  • Mount adapter
  • AC adapter *See "AC adapter".

Emulation POD for RH850 Family

Emulation PODTarget MCU
RTE7701460EPA00000RRH850/D1L1, RH850/D1L2, RH850/D1L2H, RH850/D1M1, RH850/D1M1-V2, RH850/D1M1H, RH850/D1M1A, RH850/D1M2, RH850/D1M2H, R7F701417, R7F701437
RTE7701202EPA00000JRH850/E1M-S, RH850/E1L
(Non Promotion)
RH850/D1M1, RH850/D1M1H, RH850/D1L2, RH850/D1L2H, RH850/D1L1
(Non Promotion)
RH850/D1M2, RH850/D1M2H

For other optional products, refer to Product Lineup (IE850 for RH850) and Option Products (PDF | English, 日本語).

Emulation POD for V850E2M

Emulation PODTarget MCU
QB-V850E2FX4H-PDV850E2/Fx4, V850E2/Fx4-H, V850E2/Fx4-M
QB-70F3534-PD-EEV850E2/DJ4, V850E2/DP4-H

For other optional products, refer to Product Lineup (IE850 for V850E2M) and Option Products (PDF | English, 日本語).

AC adapter

Specifications of the AC adapter for IE850 vary depending on the region. Be sure to use an adapter designed for your region. AC adapter is not bundled with the IE850.

RegionModel No.
Hong KongQB-V850E2-PW-HK

Design Support

IE850 Information for Users