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ATMEGA128 Scheda tecnica(PDF) 87 Page - ATMEL Corporation |
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ATMEGA128 Scheda tecnica(HTML) 87 Page - ATMEL Corporation |
87 / 386 page 87 2467R–AVR–06/08 ATmega128 Register Description for I/O Ports Port A Data Register – PORTA Port A Data Direction Register – DDRA Port A Input Pins Address – PINA Port B Data Register – PORTB Port B Data Direction Register – DDRB Port B Input Pins Address – PINB Port C Data Register – PORTC Port C Data Direction Register – DDRC Bit 76543210 PORTA7 PORTA6 PORTA5 PORTA4 PORTA3 PORTA2 PORTA1 PORTA0 PORTA Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Initial Value 00000000 Bit 76543210 DDA7 DDA6 DDA5 DDA4 DDA3 DDA2 DDA1 DDA0 DDRA Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Initial Value 00000000 Bit 7 6543210 PINA7 PINA6 PINA5 PINA4 PINA3 PINA2 PINA1 PINA0 PINA Read/Write R RRRRRRR Initial Value N/A N/A N/A N/A N/A N/A N/A N/A Bit 76543210 PORTB7 PORTB6 PORTB5 PORTB4 PORTB3 PORTB2 PORTB1 PORTB0 PORTB Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Initial Value 00000000 Bit 76543210 DDB7 DDB6 DDB5 DDB4 DDB3 DDB2 DDB1 DDB0 DDRB Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Initial Value 00000000 Bit 76543210 PINB7 PINB6 PINB5 PINB4 PINB3 PINB2 PINB1 PINB0 PINB Read/Write RRRRRRRR Initial Value N/A N/A N/A N/A N/A N/A N/A N/A Bit 76543210 PORTC7 PORTC6 PORTC5 PORTC4 PORTC3 PORTC2 PORTC1 PORTC0 PORTC Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Initial Value 00000000 Bit 76543210 DDC7 DDC6 DDC5 DDC4 DDC3 DDC2 DDC1 DDC0 DDRC Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Initial Value 00000000 |
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