ST72325 datasheet(64/193 Pages) STMICROELECTRONICS

Part #	ST72325

Description	8-BIT MCU WITH 16 TO 60K FLASH/ROM, ADC, CSS, FIVE TIMERS, SPI, SCI, I2C INTERFACE

PDF	193 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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64 / 193 page

ST72325

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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 39. PWM Auto-Reload Timer Block Diagram

OVF INTERRUPT

EXCL

CC2

CC1

CC0

TCE

FCRL

OIE

OVF

ARTCSR

fINPUT

PWMx

PORT

FUNCTION

ALTERNATE

OCRx

COMPARE

PROGRAMMABLE

PRESCALER

8-BIT COUNTER

(CAR REGISTER)

ARR

ICRx

LOAD

OPx

POLARITY

CONTROL

OEx

PWMCR

MUX

fCPU

DCRx

LOAD

fCOUNTER

ARTCLK

fEXT

ARTICx

ICFx

ICSx

ICCSR

LOAD

ICx INTERRUPT

ICIEx

INPUT CAPTURE

CONTROL

ST72325 Datasheet(PDF) 64 Page - STMicroelectronics

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