EFM32WG Datasheet, PDF (4/834 Pages) List of Unclassifed Manufacturers – The EFM32WG Wonder Gecko is the ideal choice for demanding 8-, 16-, and 32-bit energy sensitive applications.

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Registers and bit fields marked with reserved are reserved for future use. These should be written to 0
unless otherwise stated in the Register Description. Reserved bits might be read as 1 in future devices.
Reset Value
The reset value denotes the value after reset.
Registers denoted with X have an unknown reset value and need to be initialized before use. Note
that, before these registers are initialized, read-modify-write operations might result in undefined register
values.
Pin Connections
Pin connections are given as a module prefix followed by a short pin name:
USn_TX (USARTn TX pin)
The pin locations referenced in this document are given in the device-specific datasheet.
2.2 Related Documentation
Further documentation on the EFM32WG family and the ARM Cortex-M4 can be found at the Energy
Micro and ARM web pages:
www.energymicro.com
www.arm.com
2013-05-08 - Wonder Gecko Family - d0233_Rev0.50
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www.energymicro.com