All of the E-series cards, including the PCI-MIO-16E-1 (NI-6070E), use the DAQ-STC chip for the 8 DIO lines in port 0. Some cards, such as the PCI-6025E, offer an additional 24 lines of DIO, which use the 8255 chip for those ports (1-3).
C. Hahn
National Instruments