DDRB

8-bit AVR Microcontroller

DDRB – The Port B Data Direction Register

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.

Name:: DDRB
Offset:: 0x17
Reset:: 0x00
Access:: When addressing I/O Registers as data space the offset address is 0x37

Bit7	6	5	4	3	2	1	0
DDBn[7:0]
AccessR/W	R/W	R/W	R/W	R/W	R/W	R/W	R/W
Reset0	0	0	0	0	0	0	0

Bits 7:0 – DDBn: Port B Data Direction [n = 7:0]

Port B Data Direction [n = 7:0]