Renesas QB-V850EIX3-S100GF

Overview

QB-V850EIX3-S100GF from Renesas Electronics is an in-circuit emulator (ICE) designed for real-time debugging of V850E/IF3 and V850E/IG3 microcontrollers. It supports USB 1.1/2.0 host interface, operates at up to 64 MHz, accepts target system supply voltages from 3.5 V to 5.5 V, and provides hardware break points (10 execution, 6 access), 60 KB internal RAM, and 1 MB internal ROM. It is used during embedded firmware development for automotive control units and industrial motor drives.

For engineers reviewing the QB-V850EIX3-S100GF datasheet, QB-V850EIX3-S100GF pinout, QB-V850EIX3-S100GF application, or QB-V850EIX3-S100GF equivalent, this page delivers verified technical context, trace memory capacity (256K frames), real-time RAM monitoring (256 bytes × 8 points), coverage measurement, TimeMachine integration, and optional memory emulation - all critical for ICE selection in V850-based toolchains.

Technical Context

The QB-V850EIX3-S100GF implements a high-fidelity emulation core synchronized with the V850E/IF3 and V850E/IG3 instruction pipelines, enabling non-intrusive real-time trace capture at 50 MHz measurement clock resolution (20 ns minimum). Its POC (Power-On Clear) circuit triggers reset when AVDDX exceeds 3.7 ± 0.2 V, ensuring deterministic startup before CPU initialization.

It supports dual configuration modes - S Type (using TC, EA, MA connectors) and T Type (using TC, YQ, SA) - each with distinct mechanical mounting protocols and GND isolation requirements. Trace data includes branch-source/destination PC, R/W status, time stamp, and DMA start/end markers, stored across 256K frames in on-board memory.

Key Specifications

Availability

QB-V850EIX3-S100GF is available at Aetrix Electronics and suitable for automotive ECU development, industrial motion control systems, and V850-based safety-critical firmware validation requiring stable component supply and long-term toolchain continuity.

Supply support for QB-V850EIX3-S100GF includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Renesas Electronics Corporation, formed in 2010 via merger of NEC Electronics and Renesas Technology, is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT applications.

The QB-V850EIX3-S100GF belongs to Renesas' legacy IECUBE® in-circuit emulator product line, engineered specifically to accelerate firmware development and validation for V850E-series 32-bit MCUs used in engine control, motor drive, and factory automation systems.

FAQ

What is the primary target device family supported by the QB-V850EIX3-S100GF?

The QB-V850EIX3-S100GF is explicitly designed for in-circuit emulation of the V850E/IF3 and V850E/IG3 microcontrollers. It replicates their instruction pipeline, memory map, and peripheral behavior to enable cycle-accurate debugging. The QB-V850EIX3-S100GF does not support V850ES, V850E2, or non-V850E-series devices, as confirmed in Section 1 of its User's Manual U18651EJ2V0UM.

Does the QB-V850EIX3-S100GF require an external power supply, and what are its voltage requirements?

Yes, the QB-V850EIX3-S100GF requires a dedicated AC adapter rated at 15 V, 1 A. Its target system interface accepts VDDX/EVDD from 3.5 V to 5.5 V and AVDDX from 4.0 V to 5.5 V, with strict GND isolation required between emulator and target to prevent damage. Operation outside these ranges voids warranty and risks hardware failure, per General Precautions section in the manual.

What trace capabilities does the QB-V850EIX3-S100GF provide, and how is trace data stored?

The QB-V850EIX3-S100GF captures trace data including branch-source/destination PC, all PCs, execution data, access address, R/W status, time stamp, and DMA start/end markers. This data is stored in a dedicated 256K-frame on-board memory buffer, supporting both real-time and complete trace modes with delay trigger and qualify event filtering - essential for analyzing interrupt latency and timing-critical sequences in the QB-V850EIX3-S100GF workflow.

Can the QB-V850EIX3-S100GF emulate external memory, and what is the maximum capacity?

Yes, the QB-V850EIX3-S100GF supports optional external memory emulation up to 16 MB, configurable in 1 MB mapping units. This allows replacement of target flash or SRAM during development, enabling rapid firmware iteration without physical reprogramming. The feature is documented in Section 5.1 of the User's Manual and requires separate license activation per Renesas' optional function policy.

What are the two supported physical connection configurations for the QB-V850EIX3-S100GF?

The QB-V850EIX3-S100GF supports S Type and T Type configurations. S Type uses TC (target connector), EA (emulator adapter), and MA (mounting adapter); T Type uses TC, YQ (Y-connector), and SA (spacer adapter). Each has distinct mechanical mounting rules, GND handling precautions, and cable routing constraints detailed in Sections 2.5 and 2.6 of the manual - improper use may cause signal integrity issues or physical damage to the QB-V850EIX3-S100GF unit.