EFM32WG Datasheet, PDF (822/834 Pages) List of Unclassifed Manufacturers – The EFM32WG Wonder Gecko is the ideal choice for demanding 8-, 16-, and 32-bit energy sensitive applications.

...the world's most energy friendly microcontrollers
Table of Contents
1. Energy Friendly Microcontrollers .................................................................................................................. 2
1.1. Typical Applications ......................................................................................................................... 2
1.2. EFM32WG Development .................................................................................................................. 2
2. About This Document ................................................................................................................................ 3
2.1. Conventions ................................................................................................................................... 3
2.2. Related Documentation .................................................................................................................... 4
3. System Overview ...................................................................................................................................... 5
3.1. Introduction .................................................................................................................................... 5
3.2. Features ....................................................................................................................................... 5
3.3. Block Diagram ............................................................................................................................... 7
3.4. Energy Modes ................................................................................................................................ 7
3.5. Product Overview ........................................................................................................................... 8
4. System Processor .................................................................................................................................... 12
4.1. Introduction .................................................................................................................................. 12
4.2. Features ...................................................................................................................................... 12
4.3. Functional Description .................................................................................................................... 13
5. Memory and Bus System .......................................................................................................................... 15
5.1. Introduction .................................................................................................................................. 15
5.2. Functional Description .................................................................................................................... 16
5.3. Access to Low Energy Peripherals (Asynchronous Registers) ................................................................ 21
5.4. Flash .......................................................................................................................................... 24
5.5. SRAM ......................................................................................................................................... 24
5.6. Device Information (DI) Page .......................................................................................................... 24
6. DBG - Debug Interface ............................................................................................................................. 26
6.1. Introduction .................................................................................................................................. 26
6.2. Features ...................................................................................................................................... 26
6.3. Functional Description .................................................................................................................... 26
6.4. Debug Lock and Device Erase ........................................................................................................ 27
6.5. Register Map ............................................................................................................................... 29
6.6. Register Description ...................................................................................................................... 29
7. MSC - Memory System Controller ............................................................................................................. 31
7.1. Introduction .................................................................................................................................. 31
7.2. Features ...................................................................................................................................... 32
7.3. Functional Description .................................................................................................................... 32
7.4. Register Map ............................................................................................................................... 39
7.5. Register Description ...................................................................................................................... 39
8. DMA - DMA Controller ............................................................................................................................. 49
8.1. Introduction .................................................................................................................................. 49
8.2. Features ...................................................................................................................................... 49
8.3. Block Diagram .............................................................................................................................. 50
8.4. Functional Description .................................................................................................................... 51
8.5. Examples .................................................................................................................................... 71
8.6. Register Map ............................................................................................................................... 72
8.7. Register Description ...................................................................................................................... 73
9. RMU - Reset Management Unit ................................................................................................................. 98
9.1. Introduction .................................................................................................................................. 98
9.2. Features ...................................................................................................................................... 98
9.3. Functional Description .................................................................................................................... 98
9.4. Register Map .............................................................................................................................. 102
9.5. Register Description ..................................................................................................................... 102
10. EMU - Energy Management Unit ............................................................................................................. 105
10.1. Introduction ............................................................................................................................... 105
10.2. Features .................................................................................................................................. 105
10.3. Functional Description ................................................................................................................ 106
10.4. Register Map ............................................................................................................................ 116
10.5. Register Description ................................................................................................................... 116
11. CMU - Clock Management Unit ............................................................................................................. 124
11.1. Introduction ............................................................................................................................... 124
11.2. Features .................................................................................................................................. 124
11.3. Functional Description ................................................................................................................ 125
11.4. Register Map ............................................................................................................................ 134
11.5. Register Description ................................................................................................................... 135
12. WDOG - Watchdog Timer ...................................................................................................................... 157
12.1. Introduction ............................................................................................................................... 157
12.2. Features .................................................................................................................................. 157
12.3. Functional Description ................................................................................................................ 157
12.4. Register Map ............................................................................................................................ 159
12.5. Register Description ................................................................................................................... 159
13. PRS - Peripheral Reflex System ............................................................................................................. 162
13.1. Introduction ............................................................................................................................... 162
13.2. Features .................................................................................................................................. 162
2013-05-08 - Wonder Gecko Family - d0233_Rev0.50
822
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