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ST72561J4-Auto Datasheet(PDF) 49 Page - STMicroelectronics

Part # ST72561J4-Auto
Description  Clock, reset and supply management
PDF  324 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST72561J4-Auto Datasheet(HTML) 49 Page - STMicroelectronics

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ST72561-Auto
Supply, reset and clock management
Doc ID 12370 Rev 8
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Application notes
The LVDRF flag is not cleared when another RESET type occurs (external or watchdog), the
LVDRF flag remains set to keep trace of the original failure.
In this case, a watchdog reset can be detected by software while an external reset can not.
Caution:
When the LVD is not activated with the associated option byte, the WDGRF flag cannot be
used in the application.
Table 11.
Reset source flags
RESET sources
LVDRF
WDGRF
External RESET pin
0
0
Watchdog
1
LVD
1
X



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