Heading1 - dffn, Heading2 - negative clock edge d-type register, Figure - figure 2-7: logic symbol – Achronix Speedster22i User Macro Guide User Manual
Page 79: Heading2 - pins, Table - table 2-21: pin descriptions, Heading2 - parameters, Table - table 2-22: parameters, Heading3 - init, Table - table 2-23: function table, Dffn
