资料介绍
This chapter contains general information that will be useful to know before using the
PIC18F4XJ5X Full-Speed USB Demonstration Board. Items in this chapter include:
• Document Layout
• Conventions Used in this Guide
• Warranty Registration
• Recommended Reading
• The Microchip Web Site
• Development Systems Customer Change Notification Service
• Customer Support
• Document Revision History PIC18F4XJ5X Full-Speed USB
Demonstration Board
User’s Guide
2010 Microchip Technology Inc. DS51806B
Note the following details of the code protection feature on Microchip devices:
Microchip products meet the specification contained in their particular Microchip Data Sheet.
Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the
intended manner and under normal conditions.
There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Mic
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