Datasheet

1012
32072HAVR3210/2012
AT32UC3A3
Table of Contents
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
4.6 Module Configuration ......................................................................................34
5 Memories ................................................................................................ 35
5.1 Embedded Memories ......................................................................................35
5.2 Physical Memory Map .....................................................................................35
5.3 Peripheral Address Map ..................................................................................36
5.4 CPU Local Bus Mapping .................................................................................38
6 Boot Sequence ....................................................................................... 40
6.1 Starting of Clocks ............................................................................................40
6.2 Fetching of Initial Instructions ..........................................................................40
7 Power Manager (PM) .............................................................................. 41
7.1 Features ..........................................................................................................41
7.2 Overview ..........................................................................................................41
7.3 Block Diagram .................................................................................................42
7.4 Product Dependencies ....................................................................................43
7.5 Functional Description .....................................................................................43
7.6 User Interface ..................................................................................................55