ATMEGA1280 datasheet(10/449 Pages) ATMEL

Numer części	ATMEGA1280

Szczegółowy opis	8-bit Microcontroller with 64K/128K/256K Bytes In-System Programmable Flash

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Producent	ATMEL [ATMEL Corporation]

Strona internetowa	http://www.atmel.com

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ATmega640/1280/1281/2560/2561

2549K–AVR–01/07

AVR CPU Core

Introduction

This section discusses the AVR core architecture in general. The main function of the

CPU core is to ensure correct program execution. The CPU must therefore be able to

access memories, perform calculations, control peripherals, and handle interrupts.

Architectural Overview

Figure 5. Block Diagram of the AVR Architecture

In order to maximize performance and parallelism, the AVR uses a Harvard architecture

– with separate memories and buses for program and data. Instructions in the program

memory are executed with a single level pipelining. While one instruction is being exe-

cuted, the next instruction is pre-fetched from the program memory. This concept

enables instructions to be executed in every clock cycle. The program memory is In-

System Reprogrammable Flash memory.

The fast-access Register File contains 32 x 8-bit general purpose working registers with

a single clock cycle access time. This allows single-cycle Arithmetic Logic Unit (ALU)

operation. In a typical ALU operation, two operands are output from the Register File,

Flash

Program

Memory

Instruction

Register

Instruction

Decoder

Program

Counter

Control Lines

32 x 8

General

Purpose

Registrers

ALU

Status

and Control

I/O Lines

EEPROM

Data Bus 8-bit

Data

SRAM

Interrupt

Unit

SPI

Unit

Watchdog

Timer

Analog

Comparator

I/O Module 2

I/O Module1

I/O Module n

Podobny numer części - ATMEGA1280

Producent	Numer części	Arkusz danych	Szczegółowy opis
ATMEL Corporation	ATMEGA1280	2Mb / 407P	8- BIT Microcontroller with 256K Bytes In-System Programmable Flash 2549A-AVR-03/05
	ATMEGA1280	465Kb / 35P	8-bit Microcontroller with 64K/128K/256K Bytes In-System Programmable Flash 2549KS-AVR-01/07
	ATMEGA1280	1Mb / 38P	8-bit Microcontroller with 64K/128K/256K Bytes In-System Programmable Flash 2549MS-AVR-09/10
	ATMEGA1280	1Mb / 40P	8-bit Atmel Microcontroller with 64K/128K/256K Bytes In-System Programmable Flash 2549NS-AVR-05/11
	ATMEGA1280	352Kb / 2P	DEBUG AVR APPLICATIONS USING JTAG OR DEBUGWIRE INTERFACE AVR-02/04/0M

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Podobny opis - ATMEGA1280

Producent	Numer części	Arkusz danych	Szczegółowy opis
ATMEL Corporation	ATMEGA640_071	974Kb / 37P	8-bit Microcontroller with 64K/128K/256K Bytes In-System Programmable Flash
	ATMEGA640	465Kb / 35P	8-bit Microcontroller with 64K/128K/256K Bytes In-System Programmable Flash 2549KS-AVR-01/07
	ATMEGA640	1Mb / 38P	8-bit Microcontroller with 64K/128K/256K Bytes In-System Programmable Flash 2549MS-AVR-09/10
	ATMEGA640V	1Mb / 40P	8-bit Atmel Microcontroller with 64K/128K/256K Bytes In-System Programmable Flash 2549NS-AVR-05/11
	ATMEGA640	1Mb / 40P	8-bit Atmel Microcontroller with 64K 128K 256K Bytes In-System Programmable Flash
	ATMEGA1281-16AUR	1Mb / 40P	8-bit Atmel Microcontroller with 64K/128K/256K Bytes In-System Programmable Flash 2549PS-AVR-10/2012
	ATMEGA603	280Kb / 10P	8-Bit Microcontroller with 64K/128K Bytes In-System Programmable Flash
	ATMEGA64	5Mb / 393P	8-bit Microcontroller with 64K Bytes In-System Programmable Flash
	ATMEGA644V	787Kb / 23P	8-bit Microcontroller with 64K Bytes In-System Programmable Flash
	ATMEGA644_0702	4Mb / 374P	8-bit Microcontroller with 64K Bytes In- System Programmable Flash

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ATMEGA1280 Arkusz danych(PDF) 10 Page - ATMEL Corporation

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Podobny numer części - ATMEGA1280

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