Thank you very much for your answer falingtrea. I forgot to mention on the first post I'm using PicBasic Pro from microengineering labs with a PIC16F84 and a 10MHz crystal. I'm powering the PIC with 5 volts and the SPI sensor with 3.1 volts. It's still not clear to me if just by using the shiftin and shiftout commands I get the 2KHz that the datasheet specifies for the clock, or if there's a formula on how to calculate that depending on your crystal.

Now, from your reply I believe I have the following:

1) From what I understand the part clocks data in on the falling edge and out on rising edge.
2) The part is unidirectional.
3) I don't know I hope I can use the shiftin and shiftout commands.

I would like to attach part of the datasheet for what we are discussing in case you have some spare time to look at it and are willing to help me in case I'm not explaining myself clear or I'm confusing things, but unfortunately I don't see the option for it.

Kind regards.