Thx a lot @ all.

Now I tested it - and it goes!!

I can read data from the compact-flash-card.
And this is my solution:


read
mov Port_Data, #FFh
mov Port_Ctrl, #...
clr PIN_N_CE
clr PIN_N_OE
mov a, Port_Data ; <- read data
setb PIN_N_OE
setb PIN_N_CE

write
mov Port_Ctrl, #...
clr PIN_N_CE
mov Port_Data, #... ; <-- data to write
clr PIN_N_WE
setb PIN_N_WE
setb PIN_N_CE