Hello Franco_79,

Thanks for your question. Please refer to LogicPD's LH75401-10 Card Engine Hardware Spec, available on the LH75401-10 download site or included Zoom Starter CD.

Section 2.10 covers general purpose analog and digital IO's.

Section 5.6, "Multiplexed Signal Trade-off's", covers how to obtain more IO's. Once you decide which peripherals you require refer to this section for to use unused peripheral as possible additional IO.

Regards,
Andrew Wawra
Logic Product Development