NXP Semiconductors CWH-ETP-STC-HE

Overview

CWH-ETP-STC-HE from NXP Semiconductors (formerly Freescale) is an Ethernet-based in-circuit debug probe designed for StarCore™ processor-based embedded systems, supporting JTAG/COP, DPI, and OnCE debug interfaces, 1.8V–3.3V target voltage range, 10/100BaseT Ethernet host connection, and full CodeWarrior Development Studio integration.

For engineers reviewing the CWH-ETP-STC-HE datasheet, CWH-ETP-STC-HE pinout, CWH-ETP-STC-HE application, or CWH-ETP-STC-HE equivalent, this probe enables non-intrusive real-time register/memory inspection, flash/RAM/ROM debugging, telnet-accessible serial port bridging, and crash-proof run-control across Power Architecture® and StarCore™ targets - critical for bring-up of telecom DSP and industrial control boards.

Technical Context

The CWH-ETP-STC-HE implements a hardware-assisted debug interface that bridges Ethernet-connected host PCs to StarCore™ and Power Architecture® processors via OnCE, JTAG/COP, or DPI physical layers. It negotiates target signal levels automatically (1.8V–3.3V) and supports both big- and little-endian architectures without configuration.

It operates as a standalone run-control agent - not requiring target CPU firmware - and delivers up to 12 MB/min download throughput depending on processor and board design. Telnet-based serial port access and hardware/software breakpoint support are implemented at the probe firmware level, independent of host IDE version.

Key Specifications

Availability

CWH-ETP-STC-HE is available at Aetrix Electronics and suitable for telecom baseband development, industrial motor control firmware bring-up, and automotive infotainment DSP validation requiring stable component supply and long-term toolchain continuity.

Supply support for CWH-ETP-STC-HE 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

NXP Semiconductors is a global semiconductor company formed from the acquisition of Freescale Semiconductor in 2015, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.

The CWH-ETP-STC-HE belongs to Freescale's legacy CodeWarrior Ethernet TAP probe family, engineered specifically to accelerate low-overhead, high-fidelity debug of StarCore™ DSPs and Power Architecture® microcontrollers during early hardware validation and BSP development.

FAQ

What is the primary debug interface supported by the CWH-ETP-STC-HE?

The CWH-ETP-STC-HE supports OnCE, JTAG/COP, and DPI debug interfaces - selected physically via interchangeable probe tips. It does not require software switching between modes; interface type is determined by the attached probe hardware. The CWH-ETP-STC-HE is explicitly designated for StarCore™ processor targets using the OnCE interface, distinguishing it from the CWH-ETP-JTAG-HE and CWH-ETP-DPI-HE variants.

Does the CWH-ETP-STC-HE require a dedicated USB connection to the host PC?

No - the CWH-ETP-STC-HE uses standard 10/100BaseT Ethernet exclusively for host communication, eliminating USB dependency and enabling rack-mounted or remotely located target debugging. Power is supplied via the included AC adapter; no bus-powered operation is supported. The CWH-ETP-STC-HE connects to the host network through a standard RJ-45 port with DHCP or static IP configuration.

Can the CWH-ETP-STC-HE debug code running in flash memory on StarCore™ devices?

Yes - the CWH-ETP-STC-HE supports full source-level debugging in Intel-, AMD-, and Sharp-compatible flash memory, including breakpoint insertion and single-stepping without flash erase or reprogramming. This capability is validated for StarCore™ SC140 and SC3400 derivatives. The CWH-ETP-STC-HE performs flash-aware memory access transparently within CodeWarrior Development Studio.

Is telnet-based serial port access available with the CWH-ETP-STC-HE?

Yes - the CWH-ETP-STC-HE provides native telnet-accessible serial bridging to the target system's UART, allowing remote terminal interaction over the same Ethernet link used for debug traffic. No additional cables or converters are needed. This feature is enabled by default in CWH-ETP-STC-HE firmware and requires only standard telnet client configuration.

How does the CWH-ETP-STC-HE handle voltage level mismatch between host and target?

The CWH-ETP-STC-HE automatically detects and adapts to target I/O voltages from 1.8V to 3.3V without jumpers or configuration. Its level-shifting circuitry ensures safe, reliable signaling regardless of core voltage - critical when debugging mixed-voltage StarCore™ designs. This behavior is intrinsic to the CWH-ETP-STC-HE hardware and requires no user calibration.