ATMEGA128-16AU SL383 Atmel, ATMEGA128-16AU SL383 Datasheet - Page 87

• Manufacturer Part Number: ATMEGA128-16AU SL383
• Manufacturer: Atmel

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
2467S–AVR–07/09
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
7
PINA7
R
N/A
PORTA7
PORTB7
PORTC7
PINB7
DDA7
DDB7
DDC7
R/W
R/W
R/W
R/W
R/W
R/W
N/A
7
0
7
0
7
0
7
0
7
R
7
0
7
0
PORTA6
PORTB6
PORTC6
PINA6
PINB6
DDA6
DDB6
DDC6
R/W
R/W
R/W
R/W
R/W
R/W
N/A
N/A
6
0
6
0
6
R
6
0
6
0
6
R
6
0
6
0
PORTA5
PORTB5
PORTC5
PINA5
PINB5
DDA5
DDB5
DDC5
R/W
R/W
R/W
R/W
R/W
R/W
N/A
N/A
R
R
5
0
5
0
5
5
0
5
0
5
5
0
5
0
PORTA4
PORTB4
PORTC4
PINA4
PINB4
DDA4
DDB4
DDC4
R/W
R/W
R/W
R/W
R/W
R/W
N/A
N/A
R
R
4
0
4
0
4
4
0
4
0
4
4
0
4
0
PORTA3
PORTB3
PORTC3
PINA3
PINB3
DDA3
DDB3
DDC3
R/W
R/W
R/W
R/W
R/W
R/W
N/A
N/A
R
R
3
0
3
0
3
3
0
3
0
3
3
0
3
0
PORTA2
PORTB2
PORTC2
PINA2
PINB2
DDA2
DDB2
DDC2
R/W
R/W
R/W
R/W
R/W
R/W
N/A
N/A
R
R
2
0
2
0
2
2
0
2
0
2
2
0
2
0
PORTB1
PORTC1
PORTA1
PINA1
PINB1
DDA1
DDB1
DDC1
R/W
R/W
R/W
R/W
R/W
R/W
N/A
N/A
R
R
1
0
1
0
1
1
0
1
0
1
1
0
1
0
PORTB0
PORTC0
PORTA0
PINA0
PINB0
DDA0
DDB0
DDC0
ATmega128
R/W
R/W
R/W
R/W
R/W
R/W
N/A
N/A
R
R
0
0
0
0
0
0
0
0
0
0
0
0
0
0
PORTB
PORTC
PORTA
DDRA
DDRB
DDRC
PINA
PINB
87