User`s manual

NANO830/831 Intel
®
Atom
TM
D2550/N2600 Processor Nano-ITX Board
66 Digital I/O
Note3:
The X has 8 bits. Only bits 0,1,2,3,4 are programmable.
" 1" means that the bit is programmed to input.
" 0" means that the bit is programmed to output.
Ex:
X=00h=00000000b
Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0
No use No use No use
DO4
as output
DO3
as output
DO2
as output
DO1
as output
DO0
as output
Note4:
1. When Y=15h
Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0
No use No use No use 1 0 1 0 1
2. When Y=07h
Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0
No use No use No use 0 0 1 1 1