Datasheet

12.6.7 GPIOR0 – General Purpose I/O Register 0
Name: GPIOR0
Offset: 0x3E [ID-000004d0]
Reset: 0x00
Property: When addressing as I/O Register: address offset is 0x1E
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.
Bit 7 6 5 4 3 2 1 0
GPIOR0[7:0]
Access
R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0 0
Bits 7:0 – GPIOR0[7:0] General Purpose I/O
ATmega48PA/88PA/168PA
AVR Memories
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Datasheet Complete
DS40002011A-page 52