Motorola MVME162P-242, Installation And Use Manual

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3
3 162Bug Firmware
Introduction
The 162Bug firmware is the layer of software just above the hardware. The
firmware supplies the appropriate initialization for devices on the
MVME162P2 board upon power-up or reset.
This chapter describes the basics of 162Bug and its architecture, describes
the monitor (interactive command portion of the firmware) in detail, and
gives information on using the debugger and special commands. A list of
162Bug commands appears at the end of the chapter.
For complete user information about 162Bug, refer to the Debugging
Package for Motorola 68K CISC CPUs User’s Manual and to the
MVME162Bug Diagnostics User’s Manual, listed under Related
Documentation.
162Bug Overview
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 CPUs. The M68000
firmware version implemented on the MVME162P2 MC68040- or
MC68LC040-based embedded controller is known as MVME162Bug, or
162Bug. It includes diagnostics for testing and configuring IndustryPack
modules.
162Bug is a powerful evaluation and debugging tool for systems built
around MVME162P2 CISC-based microcomputers. Facilities are
available for loading and executing user programs under complete
operator control for system evaluation. The 162Bug firmware provides a
high degree of functionality, user friendliness, portability, and ease of
maintenance.