EFM32WG Datasheet, PDF (125/834 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
• Clock Gating on an individual basis to core modules and all peripherals
• Selectable clocks can be output on two pins for use externally.
• Auxiliary 1-28 MHz RC oscillator (AUXHFRCO) for flash programming, debug trace, and LESENSE
timing.
11.3 Functional Description
An overview of the CMU is shown in Figure 11.1 (p. 126) . The number of peripheral modules that are
connected to the different clocks varies from device to device.
2013-05-08 - Wonder Gecko Family - d0233_Rev0.50
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