ATMEGA103_07 datasheet(8/141 Pages) ATMEL

Numer części	ATMEGA103

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

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Producent	ATMEL [ATMEL Corporation]

Strona internetowa	http://www.atmel.com

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ATmega103(L)

0945I–AVR–02/07

Architectural

Overview

Figure 4. The ATmega103(L) AVR RISC Architecture

The AVR uses a Harvard architecture concept – with separate memories and buses for

program and data. The Program memory is accessed with a single-level pipeline. While

one instruction is being executed, 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 Programmable Flash memory. With a few exceptions,

AVR instructions have a single 16-bit word format, meaning that every Program memory

address contains a single 16-bit instruction.

During interrupts and subroutine calls, the return address Program Counter (PC) is

stored on the Stack. The Stack is effectively allocated in the general data SRAM and,

consequently, the Stack size is only limited by the total SRAM size and the usage of the

SRAM. All user programs must initialize the SP in the reset routine (before subroutines

or interrupts are executed). The 16-bit Stack Pointer (SP) is read/write accessible in the

I/O space.

The 4000 bytes data SRAM can be easily accessed through the five different address-

ing modes supported in the AVR architecture.

A flexible interrupt module has its control registers in the I/O space with an additional

Global Interrupt Enable bit in the Status Register. All the different interrupts have a sep-

64K x 16

Program

Memory

Instruction

Register

Instruction

Decoder

Program

Counter

Control Lines

32 x 8

General

Purpose

Registers

ALU

Status

and Test

4K x 8

EEPROM

Peripherals

Data Bus 8-bit

AVR ATmega103(L) Architecture

4K x 8

Data

SRAM

Podobny numer części - ATMEGA103_07

Producent	Numer części	Arkusz danych	Szczegółowy opis
ATMEL Corporation	ATMEGA103-6AC	280Kb / 10P	8-Bit Microcontroller with 64K/128K Bytes In-System Programmable Flash
	ATMEGA103-6AI	280Kb / 10P	8-Bit Microcontroller with 64K/128K Bytes In-System Programmable Flash
	ATMEGA103L	280Kb / 10P	8-Bit Microcontroller with 64K/128K Bytes In-System Programmable Flash
	ATMEGA103L-4AC	280Kb / 10P	8-Bit Microcontroller with 64K/128K Bytes In-System Programmable Flash
	ATMEGA103L-4AI	280Kb / 10P	8-Bit Microcontroller with 64K/128K Bytes In-System Programmable Flash

More results

Podobny opis - ATMEGA103_07

Producent	Numer części	Arkusz danych	Szczegółowy opis
ATMEL Corporation	ATMEGA1284P	6Mb / 380P	8-bit Microcontroller with 128K Bytes In-System Programmable Flash 8059D-AVR-11/09
	ATMEGA128A	555Kb / 21P	8-bit Microcontroller with 128K Bytes In-System Programmable Flash Rev. 8151DS-AVR-07/09
	ATMEGA128	349Kb / 16P	8-bit Microcontroller with 128K Bytes In-System Programmable Flash Rev. 2467CS-AVR-02/02
	ATMEGA1284P	374Kb / 20P	8-bit Microcontroller with 128K Bytes In-System Programmable Flash 8059DS-AVR-11/09
	ATMEGA128	6Mb / 386P	8-bit Microcontroller with 128K Bytes In-System Programmable Flash Rev. 2467R-AVR-06/08
	ATMEGA128	360Kb / 16P	8-bit Microcontroller with 128K Bytes In-System Programmable Flash Rev. 2467XS-AVR-06/11
	ATMEGA128	6Mb / 386P	8-bit Microcontroller with 128K Bytes In-System Programmable Flash
	ATMEGA128	317Kb / 31P	8-bit Microcontroller with 128K Bytes In-System Programmable Flash Rev. 2467OS-AVR-10/06
	ATMEGA128A	561Kb / 22P	8-bit Microcontroller with 128K Bytes In-System Programmable Flash
	ATMEGA1284P	416Kb / 20P	8-bit Microcontroller with 128K Bytes In-System Programmable Flash 8059BS-AVR-05/08

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ATMEGA103 Arkusz danych(PDF) 8 Page - ATMEL Corporation

ATMEGA103 Arkusz danych(HTML) 8 Page - ATMEL Corporation

Podobny numer części - ATMEGA103_07

Podobny opis - ATMEGA103_07

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