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ST7LITE2 数据表(PDF) 58 Page - STMicroelectronics

部件名 ST7LITE2
功能描述  8-BIT MICROCONTROLLER WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, TIMERS, SPI
PDF  133 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

ST7LITE2 数据表(HTML) 58 Page - STMicroelectronics

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12-BIT AUTORELOAD TIMER (Cont’d)
Figure 38. Block Diagram of Break Function
11.2.3.1 Input Capture
The 12-bit ATICR register is used to latch the val-
ue of the 12-bit free running upcounter after a ris-
ing 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 generat-
ed if the ICIE bit is set. The ICF bit is reset by read-
ing 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 corre-
sponds to the most recent input capture. Any fur-
ther input capture is inhibited while the ICF bit is
set.
Figure 39. 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
1



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