ATMEGA48PA_1 datasheet(8/448 Pages) ATMEL

Nome de Peças	ATMEGA48PA

Descrição Electrónicos	8-bit Microcontroller with 4/8/16/32K Bytes In-System Programmable Flash

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Fabricante Electrônico	ATMEL [ATMEL Corporation]

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8161D–AVR–10/09

ATmega48PA/88PA/168PA/328P

6.

AVR CPU Core

6.1

Overview

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.

Figure 6-1.

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 executed, the next instruc-

tion 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 typ-

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

Nº de peça semelhante - ATMEGA48PA_1

Fabricante Electrônico	Nome de Peças	Folha de dados	Descrição Electrónicos
ATMEL Corporation	ATMEGA48PA-15MZ	585Kb / 31P	Atmel 8-bit Microcontroller with 4/8/16/32KBytes In-System Programmable Flash
ATMEL Corporation	ATMEGA48PA	487Kb / 326P	131 Powerful Instructions ??Most Single Clock Cycle Execution

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Descrição semelhante - ATMEGA48PA_1

Fabricante Electrônico	Nome de Peças	Folha de dados	Descrição Electrónicos
ATMEL Corporation	ATMEGA48A	592Kb / 33P	8-bit Microcontroller with 4/8/16/32K Bytes In-System Programmable Flash
	ATMEGA48P	445Kb / 25P	8-bit Microcontroller with 4/8/16/32K Bytes In-System Programmable Flash
	ATMEGA48A	499Kb / 32P	8-bit Microcontroller with 4/8/16/32K Bytes In-System Programmable Flash
	ATMEGA48P	420Kb / 26P	8-bit Microcontroller with 4/8/16/32K Bytes In-System Programmable Flash
	ATMEGA48A	495Kb / 35P	8-bit Atmel Microcontroller with 4/8/16/32K Bytes In-System Programmable Flash
	ATMEGA325P	332Kb / 22P	8-bit Microcontroller with 32K Bytes In-System Programmable Flash
	ATMEGA325P	3Mb / 336P	8-bit Microcontroller with 32K Bytes In-System Programmable Flash
	ATMEGA329P	471Kb / 25P	8-bit Microcontroller with 32K Bytes In-System Programmable Flash
	ATMEGA324PA	546Kb / 24P	8-bit Microcontroller with 32K Bytes In-System Programmable Flash
	ATMEGA32A	427Kb / 18P	8-bit Microcontroller with 32K Bytes In-System Programmable Flash

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ATMEGA48PA Folha de dados(PDF) 8 Page - ATMEL Corporation

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