Functional Description; User Data (Ud) - Silicon Laboratories EFR32xG14 Wireless Gecko Reference Manual

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 2 KB
available for user data. The information block also contains chip configuration data located in a reserved area. The main block is map-
ped to address 0x00000000 and the information block is mapped to address 0x0FE00000.
page 127 outlines how the Flash is mapped in the memory space. All Flash memory is organized into 2 KB pages.
Block Page
1 0
Main
...
127
Reserved -
Information 0
-
1
-
2
-
2
-
...
10
Reserved -
1 Block/page erased by a device erase
7.3.1 User Data (UD) Page Description
This is the user data page in the information block. The page can be erased and written by software. The page is erased by the ERA-
SEPAGE command of the MSC_WRITECMD register. Note that the page is not erased by a device erase operation. The device erase
operation is described in 6.3.3 Authentication Access
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Table 7.1. MSC Flash Memory Mapping
Base address Write/Erase by...
0x00000000 Software, debug
Software, debug
0x0003F800 Software, debug
0x00040000 -
0x0FE00000 Software, debug
0x0FE00800 -
0x0FE04000 Write: Software,
debug
Erase: Debug only
0x0FE04800 -
0x0FE081B0 -
0x0FE08400 -
0x0FE0C000 -
0x0FE0C400 -
0x0FE10000 Software, debug
-
0x0FE13800 -
0x0FE14000 -
Point.
MSC - Memory System Controller
Table 7.1 MSC Flash Memory Mapping on
Software Reada- Purpose/Name
ble?
Yes User code and data
Yes
Yes
- Reserved for flash ex-
pansion
Yes

User Data (UD)

- Reserved
Yes Lock Bits (LB)
- Reserved
Yes Device Information (DI)
- Reserved
-
- Reserved
Yes Bootloader (BL)
-
-
Reserved for flash Rest of code space
expansion
Reference Manual
Size
16 KB - 256 KB
~24 MB
2KB
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2KB
-
1KB
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1KB
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16 KB
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