I am trying to write some low-level code to use the PCI-6509 board. I've already done this for the PCIe-6509. However, the DDK code I downloaded doesn't seem to allow me to select the I/O direction of an individual bit... it seems to be in 8-bit groups only. My understanding is that the PCI-6509 board is supposed to allow individual control over I/O direction (like the PCIe board does). Can anyone help me.