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ST72325AR7-Auto датащи(PDF) 51 Page - STMicroelectronics

номер детали ST72325AR7-Auto
подробное описание детали  SCI asynchronous serial interface
PDF  243 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST72325AR7-Auto датащи(HTML) 51 Page - STMicroelectronics

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Obsolete
Product(s)
- Obsolete
Product(s)
ST72325xxx-Auto
Supply, reset and clock management
Doc ID 13770 Rev 3
51/243
6.6.4
Low power modes
6.6.5
Interrupts
The CSS or AVD interrupt eventsgenerate an interrupt if the corresponding Enable Control
Bit (CSSIE or AVDIE) is set and the interrupt mask in the CC register is reset (RIM
instruction).
Figure 18.
Clock filter function
Table 12.
Effect of low power modes on SI
Mode
Effect
Wait
No effect on SI. CSS and AVD interrupts cause the device to exit from Wait mode.
Halt
The SICSR register is frozen.The CSS (including the safe oscillator) is disabled until
HALT mode is exited. The previous CSS configuration resumes when the MCU is woken
up by an interrupt with “exit from HALT mode” capability or from the counter reset value
when the MCU is woken up by a RESET.
Table 13.
CSS AVD interrupt control/wake-up capability
Interrupt event
Event flag
Enable control bit
Exit from Wait
Exit from Halt
CSS event
detection (safe
oscillator
activated as main
clock)
CSSD
CSSIE
Yes
No
AVD event
AVDF
AVDIE
Yes
No
fOSC2
fCPU
fOSC2
fCPU
fSFOSC
Clock Filter Function
Clock Detection Function



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