Microchip Technology MCP23X17 Bedienungsanleitung

MCP23X17

Evaluation Board

User’s Guide

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MCP23X17 EVALUATION

BOARD USER’S GUIDE

Table of Contents

Preface ........................................................................................................................... 1

Introduction............................................................................................................ 1

Document Layout .................................................................................................. 1

Conventions Used in this Guide ............................................................................ 2

Recommended Reading........................................................................................ 2

The Microchip Web Site ........................................................................................ 3

Customer Support ................................................................................................. 3

Document Revision History ................................................................................... 3

Chapter 1. Product Overview

1.1 Introduction ..................................................................................................... 5

1.2 What is the MCP23X17 Evaluation Board? .................................................... 5

1.3 What the MCP23X17 Evaluation Board Kit Includes ...................................... 5

Chapter 2. Installation and Operation

2.1 Introduction ..................................................................................................... 7

2.2 Features ......................................................................................................... 7

2.3 Getting Started ............................................................................................... 8

2.4 MCP23X17 Evaluation Board Description ...................................................... 9

2.5 Firmware Description ..................................................................................... 9

Appendix A. Schematic and Layouts

A.1 Introduction .................................................................................................. 11

A.2 Board Schematic (Page 1) ....................................................................... 12

A.3 Board Schematic (Page 2) ....................................................................... 13

A.4 Board Schematic (Page 3) ....................................................................... 14

A.5 Board - Top Layer (with silk screen) ......................................................... 15

A.6 Board - Bottom Layer ............................................................................... 16

Appendix B. Bill Of Materials (BOM)

Worldwide Sales and Service .................................................................................... 18

MCP23X17 Evaluation Board User’s Guide

NOTES:

MCP23X17 EVALUATION

BOARD USER’S GUIDE

Preface

INTRODUCTION

This chapter contains general information that will be useful to know before using the

MCP23X17 Evaluation Board. Items discussed in this chapter include:

• Document Layout

• Conventions Used in this Guide

• Recommended Reading

• The Microchip Web Site

• Customer Support

• Document Revision History

DOCUMENT LAYOUT

This document describes how to use the MCP23X17 Evaluation Board as a develop-

ment tool to emulate and debug firmware on a target board. The manual layout is as

follows:

•Chapter 1. “Product Overview” – Important information about the MCP23X17

Evaluation Board.

•Chapter 2. “Installation and Operation” – Includes instructions on how to get

started with the MCP23X17 Evaluation Board.

•Appendix A. “Schematic and Layouts” – Shows the schematic and layout

diagrams for the MCP23X17 Evaluation Board.

•Appendix B. “Bill Of Materials (BOM)” – Lists the parts used to build the

MCP23X17 Evaluation Board.

NOTICE TO CUSTOMERS

All documentation becomes dated, and this manual is no exception. Microchip tools and

documentation are constantly evolving to meet customer needs, so some actual dialogs

and/or tool descriptions may differ from those in this document. Please refer to our web site

(www.microchip.com) to obtain the latest documentation available.

Documents are identified with a “DS” number. This number is located on the bottom of each

page, in front of the page number. The numbering convention for the DS number is

“DSXXXXXA”, where “XXXXX” is the document number and “A” is the revision level of the

document.

MCP23X17 Evaluation Board User’s Guide

CONVENTIONS USED IN THIS GUIDE

This manual uses the following documentation conventions:

RECOMMENDED READING

For more information regarding the Stand-Alone CAN controller, CAN I/O expander,

and CAN transceiver devices, refer to the appropriate data sheet. Table 1-1 shows the

device and associated data sheet literature number. These documents can be down-

loaded from the Microchip web site at: www.microchip.com.

TABLE 1-1: DEVICES AND DATA SHEET LITERATURE NUMBERS

DOCUMENTATION CONVENTIONS

Description Represents Examples

Arial font:

Italic characters Referenced books MPLAB®IDE User’s Guide

Emphasized text ...is the only compiler...

Initial caps A window the Output window

A dialog the Settings dialog

A menu selection select Enable Programmer

Quotes A field name in a window or

dialog

“Save project before build”

Underlined, italic text with

right angle bracket

A menu path File>Save

Bold characters A dialog button Click OK

A tab Click the Power tab

N‘Rnnnn A number in Verilog®format,

where N is the total number of

digits, R is the radix and n is a

digit.

4‘b0010, 2‘hF1

Text in angle brackets < > A key on the keyboard Press <Enter>, <F1>

Courier New font:

Plain Courier New Sample source code #define START

Filenames autoexec.bat

File paths c:\mcc18\h

Keywords _asm, _endasm, static

Command-line options -Opa+, -Opa-

Bit values 0, 1

Constants 0xFF, ‘A’

Italic Courier New A variable argument file.o, where file can be

any valid filename

Square brackets [ ] Optional arguments mcc18 [options] file

[options]

Curly brackets and pipe

character: { | }

Choice of mutually exclusive

arguments; an OR selection

errorlevel {0|1}

Ellipses... Replaces repeated text var_name [,

var_name...]

Represents code supplied by

user

void main (void)

{ ...

}

Device Literature # Device Literature #

MCP23X17 DS21952 PIC16F818 DS39598

Preface

THE MICROCHIP WEB SITE

Microchip provides online support via our web site at www.microchip.com. This web

site is used as a means to make files and information easily available to customers.

Accessible by using your favorite Internet browser, the web site contains the following

information:

•Product Support – Data sheets and errata, application notes and sample

programs, design resources, user’s guides and hardware support documents,

latest software releases and archived software

•General Technical Support – Frequently Asked Questions (FAQs), technical

support requests, online discussion groups, Microchip consultant program

member listing

•Business of Microchip – Product selector and ordering guides, latest Microchip

press releases, listing of seminars and events, listings of Microchip sales offices,

distributors and factory representatives

CUSTOMER SUPPORT

Users of Microchip products can receive assistance through several channels:

• Distributor or Representative

• Local Sales Office

• Field Application Engineer (FAE)

• Technical Support

• Development Systems Information Line

Customers should contact their distributor, representative or field application engineer

for support. Local sales offices are also available to help customers. A listing of sales

offices and locations is included in the back of this document.

Technical support is available through the web site at: http://support.microchip.com

DOCUMENT REVISION HISTORY

Revision B (August 2006)

• Add disclaimer to Bill of Materials regarding RoHS-Compliant part numbers.

Revision A (January 2006)

• Initial Release of this Document.

MCP23X17 Evaluation Board User’s Guide

NOTES:

MCP23X17 EVALUATION

BOARD USER’S GUIDE

Chapter 1. Product Overview

1.1 INTRODUCTION

This chapter provides an overview of the MCP23X17 Evaluation Board and covers the

following topics:

• What is the MCP23X17 Evaluation Board?

• What the MCP23X17 Evaluation Board kit includes

1.2 WHAT IS THE MCP23X17 EVALUATION BOARD?

The MCP23X17 Evaluation Board allows the system designer to evaluate the operation

of the MCP23X17 General Purpose I/O (GPIO) expander. The board demonstrates the

MCP23X17 performance in a simple circuit (4 inputs and 12 outputs).

1.3 WHAT THE MCP23X17 EVALUATION BOARD KIT INCLUDES

This MCP23X17 Evaluation Board Kit includes:

• One MCP23X17 Evaluation Board

- MCP23017 GPIO Expander with I2C™ interface (installed)

- MCP23S17 GPIO Expander with SPI interface (installed)

• One AIPD Evaluation Board

• Analog and Interface Products Demonstration Boards CD-ROM (DS21912)

- MCP23X17 Evaluation Board User’s Guide (DS51592)

MCP23X17 Evaluation Board User’s Guide

NOTES:

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