Renesas QB-RL78G1C-ZZZ

Overview

QB-RL78G1C-ZZZ from Renesas Electronics is an in-circuit emulator (ICE) designed exclusively for debugging RL78/G14 microcontrollers. It supports real-time execution, 8-point event break, 2000 software breakpoints, 128K-frame trace memory, and USB 1.1/2.0 host interface - enabling full-cycle firmware validation on production-target hardware.

For engineers reviewing the QB-RL78G1C-ZZZ datasheet, QB-RL78G1C-ZZZ pinout, QB-RL78G1C-ZZZ application, or QB-RL78G1C-ZZZ equivalent, this page delivers verified system-level specifications, target interface constraints, trace capability limits, and emulator-specific power and clock configuration requirements critical to debug setup and hardware integration.

Technical Context

The QB-RL78G1C-ZZZ implements a high-fidelity emulation core with 512 KB internal ROM and 61.75 KB internal RAM for instruction and data mirroring. It provides real-time execution control (Go, Start from Here, Come Here) alongside non-real-time stepping (Step In, Next Over) and supports memory/register/SFR manipulation, disassembly, and local/global variable watch.

Its trace engine captures program address, access address/data, status, and time-tagged events across unconditional, section, qualify, and delay-trigger modes - all synchronized to a 120 MHz measurement clock with 8 ns resolution and up to ~40.7 hours of continuous timing capture.

Key Specifications

Availability

QB-RL78G1C-ZZZ is available at Aetrix Electronics and suitable for embedded firmware development, production-line debug validation, and RL78/G14-based industrial controller qualification requiring stable component supply and long-term toolchain continuity.

Supply support for QB-RL78G1C-ZZZ 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 is a Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for automotive, industrial, and IoT applications.

QB-RL78G1C-ZZZ belongs to the IECUBE™ family of high-performance in-circuit emulators, engineered specifically for low-overhead, cycle-accurate debugging of RL78-series MCUs in real-world target systems.

FAQ

What is the primary target device supported by QB-RL78G1C-ZZZ?

QB-RL78G1C-ZZZ is designed exclusively for the RL78/G14 microcontroller family. It does not support RL78/G13, RL78/G12, or any non-RL78 devices. The emulator's hardware, firmware, and probe interface are optimized for the RL78/G14's debug architecture, including its on-chip debug module and memory map alignment - making QB-RL78G1C-ZZZ incompatible with other RL78 variants without explicit documentation confirmation.

Does QB-RL78G1C-ZZZ include an AC adapter in the standard package?

No, QB-RL78G1C-ZZZ does not include an AC adapter. The standard package (QB-RL78G1C-ZZZ) contains only the emulator unit, a 2-meter USB interface cable, online user registration card, accessory CD-ROM, and packing list. An AC adapter must be ordered separately using region-specific part numbers such as QB-COMMON-PW-JP (Japan) or QB-COMMON-PW-EA (USA), as listed in Table 1-5 of the User's Manual.

Can QB-RL78G1C-ZZZ emulate resonator-based clock circuits on the target board?

No, QB-RL78G1C-ZZZ cannot emulate resonator-based oscillation on the target system. As stated in Section 2.2, "Oscillation with the resonator on the target system is not supported." The emulator supports three clock sources: internally generated clocks, square-wave input from the target, or external oscillator mounted in the OSC1 socket - but it does not replicate or substitute for ceramic resonator behavior or startup characteristics.

What are the physical dimensions and weight of QB-RL78G1C-ZZZ?

QB-RL78G1C-ZZZ measures 112 mm (L) × 108 mm (W) × 58 mm (H), excluding projections like the power switch or rear space adapter screw. Its weight is approximately 400 g. The height is adjustable via front (5–20 mm) and rear (0–30 mm) space adapters, allowing mechanical accommodation for varying target board stack-ups during probe connection.

Is QB-RL78G1C-ZZZ compatible with modern Windows operating systems?

QB-RL78G1C-ZZZ is documented for use with Windows PCs and IBM PC/AT-compatible systems per Section 1.4. While the original manual references legacy Windows versions, Renesas' CubeSuite+ IDE and associated drivers have been updated to support Windows 10 and Windows 11. Users must install the latest CubeSuite+ version and IECUBE driver package from Renesas' official website to ensure full functionality and USB enumeration on current OS releases.