Datasheet

17.4.10 Port D Input Pins Address

Name: PIND

Offset: 0x29

Reset: N/A

Property: When addressing as I/O Register: address offset is 0x09

When addressing I/O registers as data space using LD and ST instructions, the provided offset must be

used. When using the I/O specific commands IN and OUT, the offset is reduced by 0x20, resulting in an

I/O address offset within 0x00 - 0x3F.

The device is a complex microcontroller with more peripheral units than can be supported within the 64

locations reserved in Opcode for the IN and OUT instructions. For the extended I/O space from 0x60 in

SRAM, only the ST/STS/STD and LD/LDS/LDD instructions can be used.

Bit 7 6 5 4 3 2 1 0

PIND7 PIND6 PIND5 PIND4 PIND3 PIND2 PIND1 PIND0

Access

R/W R/W R/W R/W R/W R/W R/W R/W

Reset x x x x x x x x

Bits 0, 1, 2, 3, 4, 5, 6, 7 – PIND Port D Input Pins Address

Writing to the pin register provides toggle functionality for I/O. Refer to Toggling the Pin.

ATmega328PB

I/O-Ports

Datasheet Complete

DS40001906C-page 129