AT90USB647(2006) データシートの表示（PDF） - Atmel Corporation

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AT90USB647
(Rev.:2006)

8-bit Microcontroller with 64/128K Bytes of ISP Flash and USB Controller

Atmel Corporation 

AT90USB64/128

AT90USB64/128 achieves throughputs approaching 1 MIPS per MHz allowing the system

designer to optimize power consumption versus processing speed.

2.1 Block Diagram

Figure 2-1. Block Diagram

PF7 - PF0

PA7 - PA0

PC7 - PC0

VCC

GND

PORTF DRIVERS

DATA REGISTER

PORTF

DATA DIR.

REG. PORTF

AVCC

AGND

AREF

JTAG TAP

ON-CHIP DEBUG

BOUNDARY-

SCAN

PROGRAMMING

LOGIC

ADC

PROGRAM

COUNTER

PROGRAM

FLASH

INSTRUCTION

REGISTER

INSTRUCTION

DECODER

CONTROL

LINES

USART0

PORTA DRIVERS

PORTC DRIVERS

DATA REGISTER

PORTA

POR - BOD

RESET

STACK

POINTER

SRAM

GENERAL

PURPOSE

REGISTERS

X

Y

Z

ALU

STATUS

REGISTER

DATA DIR.

REG. PORTA

DATA REGISTER

PORTC

8-BIT DATA BUS

DATA DIR.

REG. PORTC

INTERNAL

OSCILLATOR

WATCHDOG

TIMER

MCU CONTROL

REGISTER

TIMER/

COUNTERS

INTERRUPT

UNIT

EEPROM

CALIB. OSC

OSCILLATOR

OSCILLATOR

TIMING AND

CONTROL

PLL

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

PORTE DRIVERS

PORTB DRIVERS

PORTD DRIVERS

DATA REG. DATA DIR.

PORTG REG. PORTG

PORTG DRIVERS

PE7 - PE0

PB7 - PB0

PD7 - PD0

PG4 - PG0

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.

5

7593D–AVR–07/06

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