Simple Scalar Interface

A scalar argument with a simple interface type becomes an input port of the top-level RTL module. Valid argument values should be provided on these input ports when the HLS module starts (i.e., when start signal is asserted, or when the MyTopFunc_start() driver function is called). If the input port can be held valid and unchanged throughout the whole iteration of the execution, a stable option can be specified using the following pragma to inform SmartHLS™ and potentially save register usage in the generated module.

As shown in the table below, each scalar argument corresponds to an input port of the top-level module.