MEGA128CAN Datasheet, PDF (3/413 Pages) ATMEL Corporation – Microcontroller WITH 128K BYTES OF ISP FLASH AND CAN CONTROLLER

Block Diagram
Figure 1. Block Diagram
AT90CAN128
PF7 - PF0
PA7 - PA0
PC7 - PC0
VCC
GND
PORTF DRIVERS
DATA REGISTER
PORTF
DATA DIR.
REG. PORTF
PORTA DRIVERS
PORTC DRIVERS
DATA REGISTER
PORTA
DATA DIR.
REG. PORTA
DATA REGISTER
PORTC
8-BIT DATA BUS
DATA DIR.
REG. PORTC
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
STACK
POINTER
SRAM
GENERAL
PURPOSE
REGISTERS
X
Y
Z
ALU
STATUS
REGISTER
INTERNAL
OSCILLATOR
WATCHDOG
TIMER
MCU CONTROL
REGISTER
TIMER/
COUNTERS
INTERRUPT
UNIT
EEPROM
CALIB. OSC
OSCILLATOR
OSCILLATOR
TIMING AND
CONTROL
CAN
CONTROLLER
USART0
TWO-WIRE SERIAL
SPI
USART1
INTERFACE
DATA REGISTER
PORTE
DATA DIR.
REG. PORTE
DATA REGISTER
PORTB
DATA DIR.
REG. PORTB
DATA REGISTER
PORTD
DATA DIR.
REG. PORTD
DATA REG. DATA DIR.
PORTG REG. PORTG
PORTE DRIVERS
PORTB DRIVERS
PORTD DRIVERS
PORTG DRIVERS
PE7 - PE0
PB7 - PB0
PD7 - PD0
PG4 - PG0
3
4250E–CAN–12/04