User guide

Page 123
K INO-PV-D5253-D4253 Mini-ITX Motherboard
mov ax, 0607h ;Logic Device 6
mov dx, 2Eh ;Select Index Register
out dx, al
inc dx ;DX = data port address
xchg al, ah
out dx, al
mov cl,bl
and bl, 1
shl bl, 4
mov al, 0F1h ;GPIO0 output register
mov ah, bl
mov dx, 2Eh ;Select Index Register
out dx, al
inc dx ;DX = data port address
xchg al, ah
out dx, al
and cl, NOT 1
shr cl, 1
mov ah, cl
mov al, 0A1h ;GPIO5 output register
mov dx, 2Eh ;Select Index Register
out dx, al
inc dx ;DX = data port address
xchg al, ah
out dx, al
mov dx, 2Eh ;Select Index Register
mov al, 0AAh
out dx, al ;Eixt configuration mode