Datasheet

92
32072SH–AVR32–10/2012
AT32UC3A3
1 Description ............................................................................................... 3
2 Overview ................................................................................................... 4
2.1 Block Diagram ...................................................................................................4
2.2 Configuration Summary .....................................................................................5
3 Package and Pinout ................................................................................. 6
3.1 Package .............................................................................................................6
3.2 Peripheral Multiplexing on I/O lines ...................................................................9
3.3 Signal Descriptions ..........................................................................................14
3.4 I/O Line Considerations ...................................................................................19
3.5 Power Considerations .....................................................................................20
4 Processor and Architecture .................................................................. 21
4.1 Features ..........................................................................................................21
4.2 AVR32 Architecture .........................................................................................21
4.3 The AVR32UC CPU ........................................................................................22
4.4 Programming Model ........................................................................................26
4.5 Exceptions and Interrupts ................................................................................30
5 Memories ................................................................................................ 34
5.1 Embedded Memories ......................................................................................34
5.2 Physical Memory Map .....................................................................................34
5.3 Peripheral Address Map ..................................................................................35
5.4 CPU Local Bus Mapping .................................................................................37
6 Boot Sequence ....................................................................................... 39
6.1 Starting of Clocks ............................................................................................39
6.2 Fetching of Initial Instructions ..........................................................................39
7 Electrical Characteristics ...................................................................... 40
7.1 Absolute Maximum Ratings* ...........................................................................40
7.2 DC Characteristics ...........................................................................................41
7.3 I/O pin Characteristics .....................................................................................42
7.4 Regulator characteristics .................................................................................43
7.5 Analog characteristics .....................................................................................44
7.6 Power Consumption ........................................................................................48
7.7 System Clock Characteristics ..........................................................................51
7.8 Oscillator Characteristics .................................................................................52
7.9 ADC Characteristics ........................................................................................54