I’m attempting to wire up a SPIM peripheral from the Arria 10 HPS to FPGA IO pins, and there’s one level of confusion within the technical reference handbook.

In Desk 214, the naming of pins, there’s an output allow for the MOSI line when utilizing the peripheral as a grasp. The identify of this sign is given as “spim_mosi_oe”

This matches the RTL sign names.

Nevertheless in Determine 112, a special naming conference is used:

Might you affirm whether or not the output allow is energetic excessive as implied by the sign naming:

assign mosi = spim_mosi_oe ? spim_mosi_o : 1'bz;

Or energetic low (as within the diagram):

assign mosi = spim_mosi_oe ? 1'bz : spim_mosi_o;