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AN4253 데이터시트(PDF) 24 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) 24 Page - STMicroelectronics

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HW resource initialization
AN4253
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DocID024255 Rev 2
Figure 12. Clock subsystem
7.6.1
Default reset configuration
As seen from the default configuration above, the system clock used for code execution is
the internal IRC oscillator running on 16 MHz. It is advised to change the clock setting
before RAM initialization and before the application startup to make the process faster.
•
System clock
IRC_16 MHz
•
Oscillator
Disabled
•
FMPLLs
Disabled
•
Clock output
Disabled
•
Peripheral clock
Enabled, PCLK = IRC_16 MHz
•
Motor clock
Enabled, MCLK = IRC_16 MHz
•
Flexray clock
Enabled, FCLK = system FMPLL
•
CAN clock
Enabled, CCLK = system FMPLL
•
FMPLL0 input
IRC_16 MHz
•
FMPLL1 input
IRC_16 MHz



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