DEBUGGER GENERAL INFORMATION

3

Overview of M68000 Firmware

The firmware for the M68000-based (68K) series of board and system level products has a common genealogy, deriving from the BUG firmware currently used on all Motorola M68000-based CPU modules. The M68000 firmware family provides a high degree of functionality and user friendliness, and yet stresses portability and ease of maintenance. This member of the M68000 firmware family is implemented on the MVME166 Single Board Computer, and is known as the MVME166Bug, or just 166Bug.

Description of 166Bug

The 166Bug package, MVME166Bug, is a powerful evaluation and debugging tool for systems built around the MVME166 CISC-based microcomputers. Facilities are available for loading and executing user programs under complete operator control for system evaluation. 166Bug includes commands for display and modification of memory, breakpoint and tracing capabilities, a powerful assembler/disassembler useful for patching programs, and a self- test at power-up feature which verifies the integrity of the system. Various 166Bug routines that handle I/O, data conversion, and string functions are available to user programs through the TRAP #15 system calls.

166Bug consists of three parts:

A command-driven user-interactive software debugger, described in Chapter 4 and hereafter referred to as "the debugger" or "166Bug".

A command-driven diagnostic package for the MVME166 hardware, hereafter referred to as "the diagnostics".

A user interface which accepts commands from the system console terminal.

MVME166IG/D23-1

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Motorola MVME166IG/D2, MVME166D2 manual Overview of M68000 Firmware, Description of 166Bug

MVME166IG, MVME166D2, MVME166IG/D2 specifications

The Motorola MVME166IG/D2 is a pioneering embedded computer designed for high-performance applications in industrial and telecom sectors. This versatile computing platform is based on the PowerPC architecture, which ensures efficient processing capabilities and transfer of data, making it suitable for a wide range of applications, including real-time control, data acquisition, and system monitoring.

One of the main features of the MVME166IG/D2 is its powerful processor. The system is equipped with a PowerPC 603e processor, which offers a remarkable performance rate with a clock speed of up to 250 MHz. This high-speed processing capability allows for rapid data handling and processing, which is critical for demanding applications in real-time environments.

The MVME166IG/D2 also stands out due to its modular design. It supports multiple expansion slots that make it adaptable for different user needs. The system can accommodate additional cards or memory modules, allowing for increased versatility and capability in various operational scenarios.

In terms of connectivity, this embedded computer includes multiple communication interfaces such as Ethernet and serial ports, which facilitate seamless data transfer and communication within larger systems. This connectivity is crucial for integrating the device into existing industrial networks or for connecting with sensors and other equipment.

Another noteworthy characteristic of the MVME166IG/D2 is its robust build quality, which is essential for operation in challenging environments. The device is designed to endure high levels of shock and vibration, making it suitable for deployment in applications such as transportation or heavy machinery.

Additionally, the MVME166IG/D2 offers a range of software support which includes various real-time operating systems. This compatibility allows developers to choose the OS that best fits their application's requirements, enhancing the overall utility of the system.

In summary, the Motorola MVME166IG/D2 is a powerful, flexible embedded computing solution that excels in performance, modularity, and reliability. Its advanced features and durable design make it an ideal choice for industries that require precision, speed, and robustness in their computing solutions.