DDRA DDRB DDRC X 0 X 0 X 0 X X X 1 1 X 1 0 0 0 1 1 1 0 X 0 1 1 PORTA PORTB PORTC X 1 X 1 X 1 X X X X X X X 1 1 1 X X X 1 X 1 X X PINA PINB PINC DATO X S4 X S7 S3 X S2 S6 X X X S5 X X X S4 X S5 S1 S3 S0 X X S2 X S6 X S1 S1 X X S0 PORTA PORTB PORTC X X X X X X X X X S2 S4 X S3 X X X S5 S0 S7 X X X S6 S1