INTRODUCTION
M68HC05E24EM/D2
1-1
MOTOROLA
CHAPTER 1
INTRODUCTION
This user's manual explains connection, configuration, and operation information specific to
the HC05E24EM Emulator Module (E24EM). The E24EM makes possible emulation and
debugging of target systems based on these microcontroller units (MCUs):
MC68HC705E24
MC68HC05E16
The E24EM can be part of two development systems. This chapter describes those systems
and explains the layout of the E24EM.
The factory installs an MC68HC705E24 resident MCU in the E24EM.
1.1 DEVELOPMENT SYSTEMS
Your E24EM can be part of two Motorola development tools: the HC05 Motorola Modular
Development System (MMDS05) or the M68HC05EVS Evaluation System (HC05EVS).
1.1.1 Motorola Modular Development System (MMDS05)
The MMDS05 is an emulator system that provides a bus state analyzer and real-time memory
windows. The unit's integrated design environment includes an editor, an assembler, user
interface, and source-level debug. A complete MMDS05 consists of:
• a station module — the metal MMDS05 enclosure, containing the control board and
the internal power supply. Most system cables connect to the MMDS05 station module.
(The cable to an optional target system, however, runs through an aperture in the station
module enclosure to connect directly to the emulator module.)
• an emulator module (EM) — such as the E24EM: a printed circuit board that
enables system functionality for a specific set of MCUs. The EM fits into the station
module through a sliding panel in the enclosure top. The EM has a connector for the
target cable.
• two logic clip cable assemblies — twisted-pair cables that connect the station
module to your target system, a test fixture, a clock, or any other circuitry useful for
evaluation or analysis. One end of each cable assembly has a molded connector, which
fits into station-module pod A or pod B. Leads at the other end of each cable terminate
in female probe tips. Ball clips come with the cable assemblies.
Freescale Semiconductor, I
Freescale Semiconductor, Inc.
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