Microchip Technology GPIODM-KPLCD Manuel D’Utilisation
GPIO EXPANDER KEYPAD
AND LCD DEMO BOARD
USER’S GUIDE
© 2006 Microchip Technology Inc.
DS51636A-page 1
Preface
INTRODUCTION
This chapter contains general information that will be useful to know before using the
GPIO Expander Keypad and LCD Demo 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
GPIO Expander Keypad and LCD Demo 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 GPIO Expander Keypad and LCD Demo
Board as a development tool. The manual layout is as follows:
• Chapter 1. “Product Overview” – Important information about the GPIO
Board as a development tool. The manual layout is as follows:
• Chapter 1. “Product Overview” – Important information about the GPIO
Expander Keypad and LCD Demo Board.
• Chapter 2. “Installation and Operation” – Includes instructions on how to get
started with this evaluation board.
• Appendix A. “Schematics and Board Layouts” – Shows the schematic and
layout diagrams for the GPIO Expander Keypad and LCD Demo Board.
• Appendix B. “Bill Of Materials (BOM)” – Lists the parts used to build the GPIO
Expander Keypad and LCD Demo 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.
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.
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.