AHDL Function Prototype (port name and order also apply to Verilog HDL)
The following AHDL function prototype is located in the AHDL Include File (.inc) Definitionlpm_bustri.inc in the < Quartus® Prime installation directory>\libraries\megafunctions directory.
FUNCTION lpm_bustri(data[LPM_WIDTH-1..0],
enabletr, enabledt)
WITH (LPM_WIDTH)
RETURNS (tridata[LPM_WIDTH-1..0], result[LPM_WIDTH-1..0]);