ATMEGA32-16AC datasheet(86/347 Pages) ATMEL

Nome de Peças	ATMEGA32-16AC

Descrição Electrónicos	8-bit AVR Microcontroller with 32K Bytes In-System Programmable Flash

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Fabricante Electrônico	ATMEL [ATMEL Corporation]

Página de início	http://www.atmel.com

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86

ATmega32(L)

2503J–AVR–10/06

16-bit

Timer/Counter1

The 16-bit Timer/Counter unit allows accurate program execution timing (event man-

agement), wave generation, and signal timing measurement. The main features are:

• True 16-bit Design (i.e., Allows 16-bit PWM)

• Two Independent Output Compare Units

• Double Buffered Output Compare Registers

• One Input Capture Unit

• Input Capture Noise Canceler

• Clear Timer on Compare Match (Auto Reload)

• Glitch-free, Phase Correct Pulse Width Modulator (PWM)

• Variable PWM Period

• Frequency Generator

• External Event Counter

• Four Independent Interrupt Sources (TOV1, OCF1A, OCF1B, and ICF1)

Overview

Most register and bit references in this section are written in general form. A lower case

"n" replaces the Timer/Counter number, and a lower case "x" replaces the output com-

pare unit. However, when using the register or bit defines in a program, the precise form

must be used i.e., TCNT1 for accessing Timer/Counter1 counter value and so on.

A simplified block diagram of the 16-bit Timer/Counter is shown in Figure 40. For the

actual placement of I/O pins, refer to Figure 1 on page 2. CPU accessible I/O Registers,

including I/O bits and I/O pins, are shown in bold. The device-specific I/O Register and

bit locations are listed in the “16-bit Timer/Counter Register Description” on page 107.

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