ST7LITE49K2 datasheet(84/245 Pages) STMICROELECTRONICS

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On-chip peripherals

ST7LITE49K2

84/245

11.2

Dual 12-bit autoreload timer

11.2.1

Introduction

The 12-bit Autoreload timer can be used for general-purpose timing functions. It is based on

one or two free-running 12-bit upcounters with an Input Capture register and four PWM

output channels. There are 7 external pins:

●

Four PWM outputs

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ATIC/LTIC pins for the Input Capture function

●

BREAK pins for forcing a break condition on the PWM outputs

11.2.2

Main features

●

Single timer or dual timer mode with two 12-bit upcounters (CNTR1/CNTR2) and two

12-bit autoreload registers (ATR1/ATR2)

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Maskable overflow interrupts

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PWM mode

–

Generation of four independent PWMx signals

–

Dead time generation for Half bridge driving mode with programmable dead time

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Frequency 2 kHz - 4 MHz (@ 8 MHz fCPU)

–

Programmable duty-cycles

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Polarity control

–

Programmable output modes

●

Output Compare mode

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Input Capture mode

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12-bit Input Capture register (ATICR)

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Triggered by rising and falling edges

–

Maskable IC interrupt

–

Long range input capture

●

Internal/external break control

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Flexible clock control

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One Pulse mode on PWM2/3

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Force update

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