ST7PLITE35F2B6TR View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

ST7PLITE35F2B6TR

8-bit MCU with single voltage Flash, data EEPROM, ADC, timers, SPI, LINSCI™

STMicroelectronics 

ST7LITE3xF2

11.2 DUAL 12-BIT AUTORELOAD TIMER 3 (AT3)

11.2.1 Introduction

The 12-bit Autoreload Timer can be used for gen-

eral-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 6 external pins:

– Four PWM outputs

– ATIC/LTIC pin for the Input Capture function

– BREAK pin 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)

■ Maskable overflow interrupts

■ PWM mode

– Generation of four independent PWMx signals

– Dead time generation for Half bridge driving

mode with programmable dead time

– Frequency 2KHz-4MHz (@ 8 MHz fCPU)

– Programmable duty-cycles

– Polarity control

– Programmable output modes

■ Output Compare Mode

■ Input Capture Mode

– 12-bit input capture register (ATICR)

– Triggered by rising and falling edges

– Maskable IC interrupt

– Long range input capture

■ Break control

■ Flexible Clock control

Figure 34. Single Timer Mode (ENCNTR2=0)

ATIC

Edge Detection Circuit

12-bit Input Capture

Output Compare

CMP

Interrupt

12-Bit Autoreload Register 1

Clock

Control

12-Bit Upcounter 1

PWM0 Duty Cycle Generator

PWM1 Duty Cycle Generator

PWM2 Duty Cycle Generator

PWM3 Duty Cycle Generator

Dead Time

Generator

DTE bit

OE0

OE1

OE2

OE3

PWM0

PWM1

PWM2

PWM3

BPEN bit

OVF1 Interrupt

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