Assignment 3 Construct VHDL models for 74-139 dual 2-to-4-line decoders using three descr iption styles, i.e., behavioral, dataflow and structural descr iptions. (1) Synthesize and (2) simulate these models respectively in the environment of Xilinx

Construct VHDL models for 74-139 dual 2-to-4-line decoders using three descr iption styles, i.e., behavioral, dataflow and structural descr iptions. Synthesize and simulate these models respectively in the environment of Xilinx ISE with the Mod

We use port map statement to achieve the structural model (components instantiations). The following example shows how to write the program to incorporate multiple components in the design of a more complex circuit. In order to simulate the design, a