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AN4253 데이터시트(PDF) 21 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) 21 Page - STMicroelectronics

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AN4253
HW resource initialization
7
HW resource initialization
Figure 9. Flow of the "Initialization of backbone hardware resources" phase
This block is responsible for the initialization of the hardware resources that have an impact
on startup time, like optimizing the flash access time, initialization of the core cache, setting
up clock subsystem etc.
Anything that does not have an impact on the startup should be left on the application
startup executed later on.
7.1
AIPS protection
AIPS protection is a feature implemented in a peripheral bridge module to control access
rights of bus masters accessing peripheral modules.
Figure 10. AIPS block scheme
7.1.1
Default reset configuration
•
Core_0/1
Both are privileged and trusted to access peripherals.
•
DMA,Flexray
Not privileged, forced to an user mode. They cannot access peripheral
memory space without modification of AIPS configuration.



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