Datasheet

18.4.3 DDRB – The Port B Data Direction Register
Name: DDRB
Offset: 0x17
Reset: 0x00
Property: When addressing I/O Registers as data space the offset address is 0x37
When using the I/O specific commands IN and OUT, the I/O addresses 0x00 - 0x3F must be used. When
addressing I/O Registers as data space using LD and ST instructions, 0x20 must be added to these offset
addresses.
Bit 7 6 5 4 3 2 1 0
DDBn[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 – DDBn[7:0] Port B Data Direction [n = 7:0]
AVR 8-Bit Microcontroller
I/O Ports
© 2017 Microchip Technology Inc.
Datasheet Complete
40001974A-page 96