ATMEGA32M1-MU Просмотр технического описания (PDF) - Atmel Corporation

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ATMEGA32M1-MU

8-bit AVR® Microcontroller with 16/32/64K Bytes In-System Programmable Flash

Atmel Corporation 

ATmega16M1/32M1/64M1

2.1 Block Diagram

Figure 2-1. Block Diagram

Flash Program

Memory

Instruction

Register

Instruction

Decoder

Control Lines

Program

Counter

Data Bus 8-bit

Status

and Control

32 x 8

General

Purpose

Registrers

ALU

Data

SRAM

EEPROM

I/O Lines

Current Source

Interrupt

Unit

SPI

Unit

Watchdog

Timer

4 Analog

Comparators

HW LIN/UART

Timer 0

Timer 1

ADC

DAC

MPSC

CAN

The AVR core combines a rich instruction set with 32 general purpose working registers. All the

32 registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two independent

registers to be accessed in one single instruction executed in one clock cycle. The resulting

architecture is more code efficient while achieving throughputs up to ten times faster than con-

ventional CISC microcontrollers.

The ATmega16M1/32M1/64M1 provides the following features: 16/32/64K bytes of In-System

Programmable Flash with Read-While-Write capabilities, 512B/1K/2K bytes EEPROM,

1/2/4K bytes SRAM, 27 general purpose I/O lines, 32 general purpose working registers, one

Motor Power Stage Controller, two flexible Timer/Counters with compare modes and PWM, one

UART with HW LIN, an 11-channel 10-bit ADC with two differential input stages with program-

mable gain, a 10-bit DAC, a programmable Watchdog Timer with Internal Individual Oscillator,

an SPI serial port, an On-chip Debug system and four software selectable power saving modes.

6

8209C–AVR–05/10

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