EFM32WG Datasheet, PDF (31/834 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
7 MSC - Memory System Controller
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01100111011110010010000001001101
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00100000011100100111010101101100
01100101011100110010000001110100
01101000011001010010000001110111
01101111011100100110110001100100
00100000011011110110011000100000
01101100011011110111011100101101
01100101011011100110010101110010
01100111011110010010000001101101
01101001011000110111001001101111
01100011011011110110111001110100
01110010011011110110110001101100
01100101011100100010000001100100
01100101011100110110100101100111
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7.1 Introduction
What?
Quick Facts
The user can perform Flash memory read,
read configuration and write operations
through the Memory System Controller
(MSC) .
Why?
The MSC allows the application code, user
data and flash lock bits to be stored in non-
volatile Flash memory. Certain memory
system functions, such as program memory
wait-states and bus faults are also configured
from the MSC peripheral register interface,
giving the developer the ability to dynamically
customize the memory system performance,
security level, energy consumption and error
handling capabilities to the requirements at
hand.
How?
The MSC integrates a low-energy Flash
IP with a charge pump, enabling minimum
energy consumption while eliminating the
need for external programming voltage to
erase the memory. An easy to use write and
erase interface is supported by an internal,
fixed-frequency oscillator and autonomous
flash timing and control reduces software
complexity while not using other timer
resources.
Application code may dynamically scale
between high energy optimization and
high code execution performance through
advanced read modes.
A highly efficient low energy instruction
cache reduces the number of flash
reads significantly, thus saving energy.
Performance is also improved when wait-
states are used, since many of the wait-states
are eliminated. Built-in performance counters
can be used to measure the efficiency of the
instruction cache.
The Memory System Controller (MSC) is the program memory unit of the EFM32WG microcontroller.
The flash memory is readable and writable from both the Cortex-M4 and DMA. The flash memory is
divided into two blocks; the main block and the information block. Program code is normally written to
the main block. Additionally, the information block is available for special user data and flash lock bits.
There is also a read-only page in the information block containing system and device calibration data.
Read and write operations are supported in the energy modes EM0 and EM1.
2013-05-08 - Wonder Gecko Family - d0233_Rev0.50
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