EFM32WG Datasheet, PDF (41/834 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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7.5.3 MSC_WRITECTRL - Write Control Register
Offset
0x008
Reset
Access
Bit Position
Name
Bit
Name
Reset
Access Description
31:2
Reserved
To ensure compatibility with future devices, always write bits to 0. More information in Section 2.1 (p. 3)
1
IRQERASEABORT
0
RW
Abort Page Erase on Interrupt
When this bit is set to 1, any Cortex interrupt aborts any current page erase operation. Executing that interrupt vector from Flash
will halt the CPU.
0
WREN
0
RW
Enable Write/Erase Controller
When this bit is set, the MSC write and erase functionality is enabled.
7.5.4 MSC_WRITECMD - Write Command Register
Offset
0x00C
Reset
Access
Bit Position
Name
Bit
31:13
12
11:9
8
7:6
5
4
Name
Reset
Access Description
Reserved
To ensure compatibility with future devices, always write bits to 0. More information in Section 2.1 (p. 3)
CLEARWDATA
0
W1
Clear WDATA state
Will set WDATAREADY and DMA request. Should only be used when no write is active.
Reserved
To ensure compatibility with future devices, always write bits to 0. More information in Section 2.1 (p. 3)
ERASEMAIN0
0
W1
Mass erase region 0
Initiate mass erase of region 0. For devices supporting read-while-write, this is the lower half of the flash. For other devices it is
the entire flash. Before use MSC_MASSLOCK must be unlocked. To completely prevent access from software, clear bit 0 in the
mass erase lock-word (MLW).
Reserved
To ensure compatibility with future devices, always write bits to 0. More information in Section 2.1 (p. 3)
ERASEABORT
0
W1
Writing to this bit will abort an ongoing erase sequence.
Abort erase sequence
WRITETRIG
0
W1
Word Write Sequence Trigger
Start write of the first word written to MSC_WDATA, then add 4 to ADDR and write the next word if available within a 30us timeout.
When ADDR is incremented past the page boundary, ADDR is set to the base of the page. If WDOUBLE is set, two words are
required every time, and ADDR is incremented by 8.
2013-05-08 - Wonder Gecko Family - d0233_Rev0.50
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