Register Description
PINA
Port A Input Pins Address
DDRA
Port A Data Direction Register
PORTA
Port A Data Register
PUEA
Port A Pull-up Enable Control Register
PINB
Port B Input Pins Address
DDRB
Port B Data Direction Register
PORTB
Port B Data Register
PUEB
Port B Pull-up Enable Control Register
PORTCR
Port Control Register
Parent topic:
I/O-Ports