AT90USB647-AU(2012) Ver la hoja de datos (PDF) - Atmel Corporation

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AT90USB647-AU
(Rev.:2012)

8-bit Atmel Microcontroller with 64/128Kbytes of ISP Flash and USB Controller

Atmel Corporation 

2.1 Block diagram

Figure 2-1. Block diagram.

PF7 - PF0

PA7 - P A0

PC7 - PC0

VCC

GND

POR TF DRIVERS

DATA REGISTER

PORT F

DATA DIR.

REG. PORT F

POR TA DRIVERS

POR TC DRIVERS

DATA REGISTER

PORT A

DATA DIR.

REG. PORT A

DATA REGISTER

PORT C

8-BIT DA TA BUS

DATA DIR.

REG. PORT C

AVCC

AGND

AREF

JTAG TAP

ON-CHIP DEBUG

BOUNDARY-

SCAN

PROGRAMMING

LOGIC

ADC

PROGRAM

COUNTER

PROGRAM

FLASH

INSTRUCTION

REGISTER

INSTRUCTION

DECODER

CONTROL

LINES

POR - BOD

RESET

ST ACK

POINTER

SRAM

GENERAL

PURPOSE

REGISTERS

X

Y

Z

ALU

ST ATUS

REGISTER

INTERNAL

OSCILLA TOR

W ATCHDOG

TIMER

MCU CONTROL

REGISTER

TIMER/

COUNTERS

INTERRUPT

UNIT

EEPROM

CALIB. OSC

OSCILLA TOR

TIMING AND

CONTROL

PLL

USART1

SPI

USB

TWO-WIRE SERIAL

INTERFACE

DATA REGISTER

PORTE

DATA DIR.

REG. PORTE

DATA REGISTER

PORTB

DATA DIR.

REG. PORTB

DATA REGISTER

PORTD

DATA DIR.

REG. PORTD

POR TE DRIVERS

POR TB DRIVERS

POR TD DRIVERS

PE7 - PE0

PB7 - PB0

PD7 - PD0

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

6 AT90USB64/128

7593L–AVR–09/12

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