ST7PLIT110BF0M3 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST7PLIT110BF0M3

8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, 5 TIMERS, SPI

STMicroelectronics 

ST7LITE1xB

11.2 DUAL 12-BIT AUTORELOAD TIMER 4 (AT4)

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 7 external pins:

– Four PWM outputs

– ATIC/LTIC pins 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 2 kHz - 4 MHz (@ 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

■ Internal/External Break control

■ Flexible Clock control

■ One Pulse mode on PWM2/3

■ Force Update

Figure 35. Single Timer Mode (ENCNTR2=0)

ATIC

Edge Detection Circuit

12-bit Input Capture

Output Compare

CMP

Interrupt

PWM0 Duty Cycle Generator

PWM1 Duty Cycle Generator

12-Bit Autoreload Register 1

PWM2 Duty Cycle Generator

12-Bit Upcounter 1

PWM3 Duty Cycle Generator

OVF1 interrupt

Dead Time

Generator

OE0

OE1

DTE bit OE2

OE3

PWM0

PWM1

PWM2

PWM3

Clock

Control

OFF

fCPU

32MHz

1 ms from

Lite Timer

BPEN bit

57/159

1

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