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ST7LITE49M 데이터시트(PDF) 83 Page - STMicroelectronics

부품명 ST7LITE49M
상세설명  8-bit MCU with single voltage Flash memory data EEPROM, ADC, 8/12-bit timers, and I²C interface
PDF  188 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
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ST7LITE49M 데이터시트(HTML) 83 Page - STMicroelectronics

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On-chip peripherals
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The maximum value of ATR is 4094 because it must be lower than the DCR value
which must be 4095 in this case.
Polarity inversion
The polarity bits can be used to invert any of the four output signals. The inversion is
synchronized with the counter overflow if the corresponding transfer bit in the ATCSR2
register is set (reset value). See Figure 39.
Figure 39.
PWM polarity inversion
The Data Flip Flop (DFF) applies the polarity inversion when triggered by the counter
overflow input.
Output control
The PWMx output signals can be enabled or disabled using the OEx bits in the
PWMCR register.
Figure 40.
PWM function
PWMx
PWMx
PIN
counter
overflow
OPx
PWMxCSR register
inverter
DFF
TRANx
ATCSR2 register
DUTY CYCLE
REGISTER
AUTO-RELOAD
REGISTER
t
4095
000
WITH OE=1
AND OPx=0
(ATR)
(DCRx)
WITH OE=1
AND OPx=1



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