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ST7LITE20F2 数据表(PDF) 81 Page - STMicroelectronics

部件名 ST7LITE20F2
功能描述  8-bit microcontroller with single voltage Flash memory, data EEPROM, ADC, Timers, SPI
PDF  166 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

ST7LITE20F2 数据表(HTML) 81 Page - STMicroelectronics

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ST7LITE20F2 ST7LITE25F2 ST7LITE29F2
On-chip peripherals
Doc ID 8349 Rev 5
81/166
Autoreload register (ATRL)
Read / Write
Reset Value: 0000 0000 (00h)
i
PWM output control register (PWMCR)
Read/Write
Reset Value: 0000 0000 (00h)
●
Bits 7:0 =
OE[3:0] PWMx output enable
These bits are set and cleared by software and cleared by hardware after a reset.
0: PWM mode disabled. PWMx output alternate function disabled: I/O pin free for
general purpose I/O after an overflow event.
1: PWM mode enabled
PWMx control status register (PWMxCSR)
Read / Write
Reset Value: 0000 0000 (00h)
●
Bits 7:2 = Reserved, must be kept cleared
●
Bit 1 =
OPx PWMx Output Polarity
This bit is read/write by software and cleared by hardware after a reset. This bit selects
the polarity of the PWM signal.
0: The PWM signal is not inverted
1: The PWM signal is inverted
●
Bit 0 =
CMPFx PWMx Compare Flag
This bit is set by hardware and cleared by software by reading the PWMxCSR register.
It indicates that the upcounter value matches the DCRx register value.
0: Upcounter value does not match DCR value.
1: Upcounter value matches DCR value
7
0
ATR7
ATR6
ATR5
ATR4
ATR3
ATR2
ATR1
ATR0
7
0
0OE30OE2
0OE10OE0
7
6
0
000
00
0
OPx
OE0



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