Process Statement All the Process Statement is executed in parallel Within the Process Statement, the coding is execute in sequential Process Statement is : OUTPUT depends on INPUT with Sensitivity List to control the event happen
Combinatorial Logic Combinatorial Logic if – Outputs at a specified time are a function only of the inputs at that time e.g. decoders, multiplexers and adders Output change instantly when input change
Behavior Modeling Only the functionality of the circuit, no structure No specific hardware intent For the purpose of synthesis, as well as simulation IN1,…,INn IF in1 THEN OUT1,…,OUTn FOR j IN high DOWNTO low LOOP