Datasheet

746
32133D–11/2011
UC3D
Table of Contents
Features ..................................................................................................... 1
1 Description ............................................................................................... 3
2 Overview ................................................................................................... 5
2.1 Block Diagram ...................................................................................................5
2.2 Configuration Summary .....................................................................................6
3 Package and Pinout ................................................................................. 7
3.1 Package .............................................................................................................7
3.2 Peripheral Multiplexing on I/O lines ...................................................................8
4 Signal Descriptions ............................................................................... 12
4.1 I/O Line Considerations ...................................................................................14
4.2 Power Considerations .....................................................................................15
5 Processor and Architecture .................................................................. 20
5.1 Features ..........................................................................................................20
5.2 AVR32 Architecture .........................................................................................20
5.3 The AVR32UC CPU ........................................................................................21
5.4 Programming Model ........................................................................................25
5.5 Exceptions and Interrupts ................................................................................28
6 Memories ................................................................................................ 33
6.1 Embedded Memories ......................................................................................33
6.2 Physical Memory Map .....................................................................................33
6.3 Peripheral Address Map ..................................................................................33
6.4 CPU Local Bus Mapping .................................................................................35
7 Boot Sequence ....................................................................................... 36
7.1 Starting of Clocks ............................................................................................36
7.2 Fetching of Initial Instructions ..........................................................................36
8 Flash Controller (FLASHCDW) ............................................................. 37
8.1 Features ..........................................................................................................37
8.2 Overview ..........................................................................................................37
8.3 Product Dependencies ....................................................................................37
8.4 Functional Description .....................................................................................38
8.5 Flash Commands ............................................................................................42
8.6 General-purpose Fuse Bits ..............................................................................44