Panasonic MN101L Series

Chapter 18
ReRAM
Overview of ReRAM XVIII - 3
18.1.2 ReRAM Area
Table:18.1.2 shows program, data and reserved areas in ReRAM.
Table:18.1.2 Application of ReRAM area
18.1.3 Data Protection Function
The following functions are available to protect the data of ReRAM.
 Protective Function
Protective Function prevents unintentional programming.
The protect area is specified with "Start Address" and "Data Size", and up to three area can be protected.
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Once Protective Function is activated, the data in the protection area can not be overwritten.
(Protective Function can not be deactivated by software.)
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 Security Function
Security Function is prevents all areas of the ReRAM reading or programming. This function blocks interpolation
and leak of the data in ReRAM. Security Function is enabled or disabled with a key code (128-bit).
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The key code cannot be changed once it is set.
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Keep the key code in a safe place.
Without the key code, ReRAM programming and rewriting cannot be performed.
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Area Application Access cycle Rewriting
0x04000 to 0x040FF
0x04900 to 0x13FFF
Program area
- Store the user program
1 cycle Available
0x04100 to 0x048FF
Data area
- Store the data
(User program can be stored in this area)
2 cycles Available
0x6F000 to 0x6FBFF
Reserved area
- Software library for programming ReRAM is stored.
1 cycle Not Available