AT90USB647_14 Datasheet, PDF (90/456 Pages) ATMEL Corporation – 135 powerful instructions – most single clock cycle execution

11.4.2
DDRA – Port A Data Direction Register
Bit
Read/write
Initial value
7
DDA7
R/W
0
6
DDA6
R/W
0
5
DDA5
R/W
0
4
DDA4
R/W
0
3
DDA3
R/W
0
2
DDA2
R/W
0
1
DDA1
R/W
0
0
DDA0
R/W
0
DDRA
11.4.3
PINA – Port A Input Pins Address
Bit
Read/write
Initial value
7
PINA7
R/W
N/A
6
PINA6
R/W
N/A
5
PINA5
R/W
N/A
4
PINA4
R/W
N/A
3
PINA3
R/W
N/A
2
PINA2
R/W
N/A
1
PINA1
R/W
N/A
0
PINA0
R/W
N/A
PINA
11.4.4
PORTB – Port B Data Register
Bit
Read/write
Initial value
7
PORTB7
R/W
0
6
PORTB6
R/W
0
5
PORTB5
R/W
0
4
PORTB4
R/W
0
3
PORTB3
R/W
0
2
PORTB2
R/W
0
1
PORTB1
R/W
0
0
PORTB0
R/W
0
PORTB
11.4.5
DDRB – Port B Data Direction Register
Bit
Read/write
Initial value
7
DDB7
R/W
0
6
DDB6
R/W
0
5
DDB5
R/W
0
4
DDB4
R/W
0
3
DDB3
R/W
0
2
DDB2
R/W
0
1
DDB1
R/W
0
0
DDB0
R/W
0
DDRB
11.4.6
PINB – Port B Input Pins Address
Bit
Read/write
Initial value
7
PINB7
R/W
N/A
6
PINB6
R/W
N/A
5
PINB5
R/W
N/A
4
PINB4
R/W
N/A
3
PINB3
R/W
N/A
2
PINB2
R/W
N/A
1
PINB1
R/W
N/A
0
PINB0
R/W
N/A
PINB
11.4.7
PORTC – Port C Data Register
Bit
Read/write
Initial value
7
PORTC7
R/W
0
6
PORTC6
R/W
0
5
PORTC5
R/W
0
4
PORTC4
R/W
0
3
PORTC3
R/W
0
2
PORTC2
R/W
0
1
PORTC1
R/W
0
0
PORTC0
R/W
0
PORTC
11.4.8
DDRC – Port C Data Direction Register
Bit
Read/write
Initial value
7
DDC7
R/W
0
6
DDC6
R/W
0
5
DDC5
R/W
0
4
DDC4
R/W
0
3
DDC3
R/W
0
2
DDC2
R/W
0
1
DDC1
R/W
0
0
DDC0
R/W
0
DDRC
11.4.9
PINC – Port C Input Pins Address
Bit
Read/write
Initial value
7
PINC7
R/W
N/A
6
PINC6
R/W
N/A
5
PINC5
R/W
N/A
4
PINC4
R/W
N/A
3
PINC3
R/W
N/A
2
PINC2
R/W
N/A
1
PINC1
R/W
N/A
0
PINC0
R/W
N/A
PINC
11.4.10
PORTD – Port D Data Register
Bit
Read/write
Initial value
7
PORTD7
R/W
0
6
PORTD6
R/W
0
5
PORTD5
R/W
0
4
PORTD4
R/W
0
3
PORTD3
R/W
0
2
PORTD2
R/W
0
1
PORTD1
R/W
0
0
PORTD0
R/W
0
PORTD
90 AT90USB64/128
7593L–AVR–09/12