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AN4253 Datenblatt(PDF) 9 Page - STMicroelectronics

Teilenummer AN4253
Bauteilbeschribung  SPC564Lx device startup flow
PDF  44 Pages
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Hersteller  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN4253 Datenblatt(HTML) 9 Page - STMicroelectronics

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AN4253
After reset init
Figure 3. MMU reset configuration
2.2.1
Default reset configuration
•
4 KB code Flash area starting at reset vector
2.2.2
Code sequence
Memory management unit is a part of the core with its dedicated register interface (MASx) to
access an internal MMU configuration.
Read operation sequence
1.
Prepare MMU item number in MAS0 register (mtspr instruction)
2.
Execute tlbre instruction
3.
Content of table entry is read to MAS0-3 register (mfspr
instruction)
Write operation sequence
1.
Prepare configuration in MAS0-3 registers (mtspr instruction)
2.
Execute tlbwe instruction
3.
Content of MAS0-3 registers is written to MMU entry



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