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ST7DALIF2 数据表(PDF) 76 Page - STMicroelectronics

部件名 ST7DALIF2
功能描述  Configurable watchdog timer
PDF  171 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

ST7DALIF2 数据表(HTML) 76 Page - STMicroelectronics

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12-bit autoreload timer 2 (AT2)
ST7DALIF2
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Figure 37.
Block diagram of break function
14.3.4
Input capture
The 12-bit ATICR register is used to latch the value of the 12-bit free running upcounter after
a rising or falling edge is detected on the ATIC pin. When an input capture occurs, the ICF
bit is set and the ATICR register contains the value of the free running upcounter. An IC
interrupt is generated if the ICIE bit is set. The ICF bit is reset by reading the ATICR register
when the ICF bit is set. The ATICR is a read only register and always contains the free
running upcounter value which corresponds to the most recent input capture. Any further
input capture is inhibited while the ICF bit is set.
Figure 38.
Input capture timing diagram
PWM0
PWM1
PWM2
PWM3
1
0
PWM0
PWM1
PWM2
PWM3
BREAKCR Register
BREAK pin
PWM counter -> Reset value
ARR & DCRx -> Reset value
PWM Mode -> Reset value
When BA is set:
(Active Low)
(Inverters)
Note:
The BREAK pin value is latched by the BA bit.
PWM0
PWM1
PWM2
PWM3
BPEN
BA
COUNTER
t
01h
fCOUNTER
xxh
02h
03h
04h
05h
06h
07h
04h
ATIC PIN
ICF FLAG
ICR REGISTER
INTERRUPT
08h
09h
0Ah
INTERRUPT
ATICR READ
09h



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