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ST7DALIF2 Folha de dados(PDF) 43 Page - STMicroelectronics

Nome de Peças ST7DALIF2
Descrição Electrónicos  Configurable watchdog timer
PDF  171 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST7DALIF2 Folha de dados(HTML) 43 Page - STMicroelectronics

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ST7DALIF2
Supply, reset and clock management
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Figure 18.
Using the AVD to monitor VDD
9.7.3
Low power modes
Interrupts
The AVD interrupt event generates an interrupt if the corresponding Enable Control Bit
(AVDIE) is set and the interrupt mask in the CC register is reset (RIM instruction).
VDD
VIT+(AVD)
VIT-(AVD)
AVDF bit
01
RESET
IF AVDIE bit = 1
Vhyst
AVD INTERRUPT
REQUEST
INTERRUPT Cleared by
VIT+(LVD)
VIT-(LVD)
LVD RESET
Early warning interrupt
(Power has dropped, MCU not
not yet in reset)
0
1
hardware
INTERRUPT Cleared by
reset
Table 12.
Effect of low power modes on SI
Mode
Description
Wait
No effect on SI. AVD interrupts cause the device to exit from Wait mode.
Halt
The SICSR register is frozen.
The AVD remains active.
Table 13.
Interrupt control bits
Interrupt event
Event
flag
Enable
control
bit
Exit
from
Wait
Exit
from
Halt
AVD event
AVDF
AVDIE
Yes
No



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