User manual

AT90USBKey Hardware User Guide User Guide 1
7627A–AVR–04/06
Section 1
Introduction ........................................................................................... 1-3
1.1 Overview ...................................................................................................1-3
1.2 AT90USBKey Features............................................................................1-4
Section 2
Using the AT90USBKey ....................................................................... 2-5
2.1 Overview ...................................................................................................2-5
2.2 Power Supply............................................................................................2-6
2.3 Reset.........................................................................................................2-8
2.4 On-board Resources.................................................................................2-9
2.5 In-System Programming .........................................................................2-13
2.6 Debugging...............................................................................................2-14
Section 3
Troubleshooting Guide ....................................................................... 3-15
Section 4
Technical Specifications .....................................................................4-16
Section 5
Technical Support............................................................................... 5-17
Section 6
Complete Schematics.........................................................................6-18