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ATMEGA161 Datasheet(PDF) 3 Page - ATMEL Corporation |
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ATMEGA161 Datasheet(HTML) 3 Page - ATMEL Corporation |
3 / 134 page ![]() ATmega161(L) 3 Block Diagram Figure 1. The ATmega161 Block Diagram PROGRAMMING LOGIC SPI UARTS PB0 - PB7 VCC GND 8-BIT DATA BUS DATA DIR. REG. PORTA DATA REGISTER PORTA PORTA DRIVERS PA0-PA7 DATA DIR. REG. PORTC DATA REGISTER PORTC PORTC DRIVERS PC0-PC7 PORTD DRIVERS PD0 - PD7 DATA DIR. REG. PORTD DATA REGISTER PORTB PORTB DRIVERS PORTE DRIVERS PE0 - PE2 DATA REG. PORTE DATA DIR REG. PORTE PROGRAM COUNTER INTERNAL OSCILLATOR WATCHDOG TIMER STACK POINTER PROGRAM FLASH MCU CONTROL REGISTER SRAM GENERAL PURPOSE REGISTERS INSTRUCTION REGISTER TIMER/ COUNTERS INSTRUCTION DECODER TIMING AND CONTROL OSCILLATOR INTERRUPT UNIT EEPROM STATUS REGISTER Z Y X ALU RESET XTAL2 XTAL1 CONTROL LINES DATA DIR. REG. PORTB DATA REGISTER PORTD |