Atmel AVR XMEGA E, Application Note

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Atmel AT01080: XMEGA E Schematic Checklist [APPLICATION NOTE]
42087A − AVR − 04/2013
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Table of Contents
1. Power Supplies .................................................................................... 3
1.1 Power supply connections ................................................................................ 3
1.2 External analog reference connections ............................................................. 4
2. External Reset Circuit .......................................................................... 4
3. Clocks and Crystal Oscillators ............................................................. 5
3.1 External clock source ........................................................................................ 5
3.2 Crystal oscillator ................................................................................................ 6
3.3 Real-time oscillator ............................................................................................ 6
4. PDI Interface ........................................................................................ 8
5. TWI Interface ....................................................................................... 9
6. Suggested Reading ............................................................................. 9
6.1 Datasheets and manual .................................................................................... 9
7. Revision History ................................................................................. 10