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

7.2 Features
...the world's most energy friendly microcontrollers
• AHB read interface
• Scalable access performance to optimize the Cortex-M4 code interface
• Zero wait-state access up to 16 MHz and one wait-state for up to 32 MHz and two wait-states
for up to 48
• Advanced energy optimization functionality
• Conditional branch target prefetch suppression
• Cortex-M4 disfolding of if-then (IT) blocks
• Instruction Cache
• DMA read support in EM0 and EM1
• Command and status interface
• Flash write and erase
• Accessible from Cortex-M4 in EM0
• DMA write support in EM0 and EM1
• Core clock independent Flash timing
• Internal oscillator and internal timers for precise and autonomous Flash timing
• General purpose timers are not occupied during Flash erase and write operations
• Configurable interrupt erase abort
• Improved interrupt predictability
• Memory and bus fault control
• Security features
• Lockable debug access
• Page lock bits
• SW Mass erase Lock bits
• Authentication Access Port (AAP) lock bits
• End-of-write and end-of-erase interrupts
7.3 Functional Description
The size of the main block is device dependent. The largest size available is 256 kB (128 pages).
The information block has 2048 bytes available for user data. The information block also contains chip
configuration data located in a reserved area. The main block is mapped to address 0x00000000 and
the information block is mapped to address 0x0FE00000. Table 7.1 (p. 33) outlines how the Flash
is mapped in the memory space. All Flash memory is organized into 2048 byte pages.
2013-05-08 - Wonder Gecko Family - d0233_Rev0.50
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