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) Definitionaltufm_osc.inc in the <Quartus® Prime installation directory>\libraries\megafunctions directory.
FUNCTION altufm_osc (
oscena
)
WITH (
OSC_FREQUENCY
)
RETURNS (
osc
);