Contents

Introduction Features 1. Relevant Devices 1.1. tinyAVR 0-series 1.2. tinyAVR 1-series 1.3. megaAVR 0-series 2. Device Self-Programming 2.1. Memory Layout 2.1.1. Flash 2.1.2. EEPROM 2.1.3. User Row 2.2. Compiler and Linker 2.2.1. Standard Start Files in the Bootloader 2.2.2. Application Start 2.3. Memory Protection 2.3.1. BOOTLOCK and APCWP 2.3.2. EESAVE 2.3.3. Lock Bits 2.4. Bootloader Operation 3. Host Application 3.1. Python Script Operation 4. Expanding Functionality 4.1. Entering Boot Mode 4.2. Interfaces 4.3. Data Integrity 4.4. Confidentiality 5. References 6. Revision History 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