clk_to_freq :
A clock-to-frequency domain translator.

The clk_to_freq primitive takes a periodic clock input in and produces an output signal out that expresses the frequency of the clock. The output signal is an xreal-typed, step signal which gets updated at each rising edge of the input clock.

Input/Output Terminals

Name	I/O	Type	Description
out	output	xreal	frequency output
in	input	xbit	clock input