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ST72321 Datasheet(PDF) 60 Page - STMicroelectronics

Part # ST72321
Description  64/44-PIN 8-BIT MCU WITH 32 TO 60K FLASH/ROM, ADC,FIVE TIMERS, SPI, SCI, I2C INTERFACE
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST72321 Datasheet(HTML) 60 Page - STMicroelectronics

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10.3 PWM AUTO-RELOAD TIMER (ART)
10.3.1 Introduction
The Pulse Width Modulated Auto-Reload Timer
on-chip peripheral consists of an 8-bit auto reload
counter with compare/capture capabilities and of a
7-bit prescaler clock source.
These resources allow five possible operating
modes:
– Generation of up to 4 independent PWM signals
– Output compare and Time base interrupt
– Up to two input capture functions
– External event detector
– Up to two external interrupt sources
The three first modes can be used together with a
single counter frequency.
The timer can be used to wake up the MCU from
WAIT and HALT modes.
Figure 37. PWM Auto-Reload Timer Block Diagram
OVF INTERRUPT
EXCL
CC2
CC1
CC0
TCE
FCRL
OIE
OVF
ARTCSR
fINPUT
PWMx
PORT
FUNCTION
ALTERNATE
OCRx
COMPARE
REGISTER
PROGRAMMABLE
PRESCALER
8-BIT COUNTER
(CAR REGISTER)
ARR
REGISTER
ICRx
REGISTER
LOAD
OPx
POLARITY
CONTROL
OEx
PWMCR
MUX
fCPU
DCRx
REGISTER
LOAD
fCOUNTER
ARTCLK
fEXT
ARTICx
ICFx
ICSx
ICCSR
LOAD
ICx INTERRUPT
ICIEx
INPUT CAPTURE
CONTROL


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