Target Interface User Manual

1–5MMDS0508 Target Interface

General Description

1.1 Introduction

The M68MMDS05/08 Motorola Modular Development System (MMDS) is a tool for

developing embedded systems based on an MC68HC05 or MC68HC08

microcontroller unit (MCU). A modular emulation system, the MMDS provides

interactive control of a microcontroller application when connected to your target

system.

The MMDS environment allows for source-level debugging and simplifies writing

and debugging code. These features significantly reduce development time.

A complete MMDS includes a station module, an emulation module (EM), and a

target cable assembly. The EM completes MMDS functionality for a particular MCU

or MCU family.

1.2 MMDS Features

MMDS features include:

• Real-time, non-intrusive, in-circuit emulation

• Real-time bus state analysis

• MC68HC11K1 system controller, for fast command transfer

• Compliance with ECC92 European electromagnetic compatibility standards

• Four complex data breakpoints, each qualified by an address, an address range,

data, or externally connected logic clips.

• 32 variables or real-time variables, plus a 32-byte block of real-time memory,

mappable anywhere within a 1-kilobyte window over the 64-kilobyte HC05/HC08

memory map.

• 64 kilobytes of emulation memory, to accommodate the largest available ROM

size of current HC05/HC08 MCUs.

Freescale Semiconductor, Inc.

For More Information: www.freescale.com