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AN4253 데이터시트(PDF) 9 Page - STMicroelectronics

부품명 AN4253
상세설명  SPC564Lx device startup flow
PDF  44 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
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AN4253 데이터시트(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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