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Freescale Semiconductor MC68HC908QT2, M68HC08 manual Introduction and Setup, About this Manual

Models: M68HC08

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Freescale Semiconductor, Inc.

Freescale Semiconductor, Inc.

Designer Reference Manual — DRM045

Section 1. Introduction and Setup

1.1 Introduction

Motorola’s ASB520, MC68HC908QT2 Infrared Remote Control Reference PC Board and software are designed to demonstrate how a simple, limited function, dedicated remote control system could be designed. The objective is to keep the design simple so a user can pick portions of interest to his design and turn them into an application specific system. This system is specifically programmed to control an APEX model 1201 DVD player.

A few of the more noteworthy features of the reference PC board are listed as follows:

•8-pin MC68HC908QT2 microcontroller

•Infrared LED and driver

•Visible LED to show activity

•Six user push buttons

•MON08 programming interface for in-circuit FLASH programming

•Battery holder for 3-AA cells

•Microcontroller current monitor jumper block

A photograph of the reference PC board appears in Figure 1-1.

1.2 About this Manual

Key items can be found in the following locations in this manual:

•Setup instructions are found in 1.3 Setup Guide.

•Schematics are found in 4.2 Schematic.

•Pin assignments for MON08 connector J1 are shown in Table 3-1. MON08 Pin Assignments.

•User interfaces are described in 2.3 LEDs.

•For those interested in the design aspects of the reference PC board’s circuitry, a description is provided in Section 5. Design Considerations.

•System testing, hardware and software, are described in detail in Section 6. System Testing.

Using the ASB520 MC68HC908QT2 Based Infrared Remote Control Reference PC Board		DRM045

MOTOROLA	Introduction and Setup	7
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Freescale Semiconductor MC68HC908QT2, M68HC08 manual Introduction and Setup, About this Manual, Freescale Semiconductor, Inc

Contents

Remote Control Reference PC Board Freescale Semiconductor, IncFreescale Semiconductor, Inc Using the ASB520 MC68HC908QT2 Based InfraredFreescale Semiconductor, Inc Freescale Semiconductor, IncFor More Information On This Product Freescale Semiconductor, Inc Reference DesignUsing the ASB520 MC68HC908QT2 Based Infrared Remote Control Reference PC BoardFreescale Semiconductor, Inc Revision HistoryRevision History Freescale Semiconductor, IncSection 6. System Testing Table of ContentsSection 1. Introduction and Setup Section 4. Schematic and Parts ListDRM045 Table of ContentsFreescale Semiconductor, Inc Freescale Semiconductor, IncFreescale Semiconductor, Inc Section 1. Introduction and Setup1.1 Introduction 1.2 About this ManualFreescale Semiconductor, Inc Introduction and Setup1.3 Setup Guide Freescale Semiconductor, IncFreescale Semiconductor, Inc Introduction and Setup Setup GuideIntroduction and Setup Freescale Semiconductor, IncDRM045 Introduction and SetupFreescale Semiconductor, Inc Freescale Semiconductor, Inc2.2 Push Buttons 2.3.1 Red Activity Indicator LEDSection 2. Operational Description 2.1 IntroductionJP1 JP2 JP3 JP4 Operational DescriptionFigure 2-1.PC Board Freescale Semiconductor, IncFreescale Semiconductor, Inc 2.4 Header and Jumpers BlocksFreescale Semiconductor, Inc Operational Description 2.5 Microcontroller Current Monitor Jumper BlockFreescale Semiconductor, Inc Freescale Semiconductor, IncTable 3-1.MON08 Pin Assignments 3.2 16-PinConnector J1Section 3. Pin Description 3.1 IntroductionDRM045 Pin DescriptionFreescale Semiconductor, Inc Freescale Semiconductor, IncFreescale Semiconductor, Inc Section 4. Schematic and Parts List4.2 Schematic 4.1 IntroductionFigure 4-1.ASB520 PC Schematic and Parts ListBoard Schematic Semiconductor, IncFreescale Semiconductor, Inc 4.3 Parts ListTable 4-1.Reference PC Board Parts List Schematic and Parts List Parts ListDRM045 Schematic and Parts ListFreescale Semiconductor, Inc Freescale Semiconductor, Inc5.2 Grounding FreescaleSection 5. Design Considerations 5.1 IntroductionFreescale Semiconductor, Inc 5.4 Switch CircuitryFigure 5-2.Switch Circuitry Design ConsiderationsFreescale Semiconductor, Inc Table 5-1.Switch Input A/D ValuesDesign Considerations Switch Circuitry SwitchDRM045 Freescale Semiconductor, IncFreescale Semiconductor, Inc Design Considerations6.3FLASH Programming Section 6. System Testing6.2 Hardware/Software Testing Summary 6.1 IntroductionFreescale Semiconductor, Inc System Testing6.4 LED and Push Button Test Code Freescale Semiconductor, IncFreescale Semiconductor, Inc 6.5 DVD Player Control TestFreescale Semiconductor, Inc Freescale Semiconductor, Inc System TestingSystem Testing Freescale Semiconductor, IncFreescale Semiconductor, Inc Freescale Semiconductor, IncFor More Information On This Product For More Information On This Product HOW TO REACH USFreescale Semiconductor, Inc Freescale Semiconductor, Inc