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ST7LITE1XB Datasheet(PDF) 68 Page - STMicroelectronics

No. de pieza ST7LITE1XB
Descripción Electrónicos  8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, 5 TIMERS, SPI
PDF  159 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST7LITE1XB Datasheet(HTML) 68 Page - STMicroelectronics

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DUAL 12-BIT AUTORELOAD TIMER 4 (Cont’d)
8. Set the OP_EN bit in the PWM3CSR register to
enable one-pulse mode.
9. Enable the PWM3 output by setting the OE3 bit
in the PWMCR register.
The "Wait for Overflow event" in step 6 can be re-
placed by forced update (writing the FORCE2 bit).
Follow the same procedure for PWM2 with the bits
corresponding to PWM2.
Note: When break is applied in one-pulse mode,
the CNTR2, DCR2/3 & ATR2 registers are reset.
Consequently, these registers have to be initial-
ized again when break is removed.
Figure 47. Block Diagram of One Pulse Mode
Figure 48. One Pulse Mode and PWM Timing Diagram
LTIC pin
Edge
Selection
OPEDGE
PWM3CSR Register
OP_EN
12-bit AutoReload Register 2
12-bit Upcounter 2
12-bit Active DCR2/3
Generation
PWM
OP2/3
PWM2/3
OVF
ATR2
CNTR2
LTIC
PWM2/3
000
DCR2/3
000
DCR2/3
ATR2
000
OVF
ATR2
DCR2/3
OVF
ATR2
DCR2/3
CNTR2
LTIC
PWM2/3
fcounter2
fcounter2
Note 1: When OP_EN=0, LTIC edges are not taken into account as the timer runs in PWM mode.
1



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