ATmega328 Register Simulator

Visualizing PORTB registers with Arduino digital pin mappings (D8 to D13).

PINB

Addr: 0x03 (Input)

00000000b
0x00

DDRB

Addr: 0x04 (Direction)

00000000b
0x00

PORTB

Addr: 0x05 (Output)

00000000b
0x00