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ST7DALIF2 Datasheet(PDF) 167 Page - STMicroelectronics

Part # ST7DALIF2
Description  Configurable watchdog timer
PDF  171 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST7DALIF2 Datasheet(HTML) 167 Page - STMicroelectronics

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ST7DALIF2
Important notes
167/171
The symptom does not occur when the interrupts are handled normally, i.e. when:
The interrupt request is cleared (flag reset or interrupt mask) within its own interrupt
routine
The interrupt request is cleared (flag reset or interrupt mask) within any interrupt
routine
The interrupt request is cleared (flag reset or interrupt mask) in any part of the code
while this interrupt is disabled
If these conditions are not met, the symptom can be avoided by implementing the following
sequence:
Perform SIM and RIM operation before and after resetting an active interrupt request
Ex:
SIM
reset flag or interrupt mask
RIM
23.6
Using PB4 as external interrupt
PB4 cannot be used as an external interrupt in Halt mode because the port pin PB4 is not
active in this mode.
23.7
Timebase 2 interrupt in Slow mode
Timebase 2 interrupt is not available in slow mode.



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