Contents

Preface Introduction Features Kit Overview Getting Started Curiosity Nano Quick Start Design Documentation and Relevant Links Curiosity Nano Onboard Debugger Virtual COM Port Overview Limitations Signaling Advanced Use Mass Storage Disk Mass Storage Device Configuration Words/Fuse Bytes Curiosity Nano Standard Pinout Power Supply Target Regulator External Supply Disconnecting the Onboard Debugger Current Measurement Hardware User Guide Connectors ATmega4809 Curiosity Nano Pinout Peripherals LED Mechanical Switch Crystal Onboard Debugger Implementation Onboard Debugger Connections Hardware Revision History Identifying Product ID and Revision Revision 5 Document Revision History Appendix Schematic Connecting External Debuggers Getting Started with IAR The Microchip Web Site Customer Change Notification Service Customer Support Microchip Devices Code Protection Feature Legal Notice Trademarks Quality Management System Certified by DNV Worldwide Sales and Service