Pwm Auto-Reload Timer (Art); Introduction; Figure 39. Pwm Auto-Reload Timer Block Diagram - STMicroelectronics ST72361 Auto Series Manual

ST72361xx-Auto
11

PWM auto-reload timer (ART)

11.1

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 four 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

PWMx
ARTICx
ARTCLK
PWMCR OEx
PORT
ALTERNATE
FUNCTION
ARR
REGISTER
INPUT CAPTURE
CONTROL
ICSx ICIEx
f
EXT
f
CPU
MUX
f
INPUT PROGRAMMABLE
PRESCALER
EXCL CC2
Doc ID 12468 Rev 3
OCRx
OPx
REGISTER
POLARITY
COMPARE
CONTROL
8-BIT COUNTER
(CAR REGISTER)
ICRx
LOAD
REGISTER
ICFx ICCSR
ICx INTERRUPT
f
COUNTER
CC1 CC0 TCE FCRL OIE
PWM auto-reload timer (ART)
DCRx
REGISTER
LOAD
LOAD
ARTCSR
OVF
OVF INTERRUPT
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