Small Description about Behavior Modeling Style

Behavior Modeling Style -

• Behavior Modeling Style shows that how our system performs according to current input values.
• In behavor Modeling, we defines that what value we get at the output corresponding to input values.
• We Defines the function / Behavior of our Digital Systems in Behavior Modeling Style.
• Behavior Modeling Style works on Sequential Execution.
• Behavior Modeling style very much similar to C-language.

PROCESS   is the basic building block to work on Behavior modeling style.   PROCESS   is the keyword which converts the way of execution from concurrent execution to sequential execution. 

All the statements in behavior modeling style must be written in between  PROCESS  block.


Syntax - How to use PROCESS  keyword in VHDL Language.


label  :   process   (Senstivity List) 
Variable Declaration (optional).
Constant Declaration (optional).
begin

        Sequential Statements ;

end process ;


Behavior Modeling Style Statements -

• If-else Statement.
• CASE Statement.
• Loop Statement.

Sample Programs & LAB Exercise -

Basic Combinational Circuits Design.-

• Design of  4 to  1 Multiplexer using if-else statement.
• Design of 1 to 4 Demultiplexer using if -else statement.
• Design of 4 to 2 Encoder using if-else statement.
• Design of 2 to 4 Decoder using if-else statement.
• Design of 8 to 3 Priority Encoder using if-else (Method 1).
• Design of 8 to 3 Priority Encoder using if-else & std_match FUNCTION.
• Design of 4 to 1 Multiplexer using case statement.
• Design of 1 to 4 Demultiplexer using case statement.
• Design of 4 to 2 Encoder using case statement.
• Design of 2 to 4 Decoder using case statement.
• Design of Grading System using case statement.
• Design of 4 Bit Comparator using if-else statement.
• Design of Binary to Gray Converter using using if-else statement.
• Design of Gray To Binary Converter using if-else statement.
• Design of Binary to Gray Converter using case statement.
• Design of Gray to Binary Converter using case statement.
• Design of BCD to 7 Segment Driver for common anode display using if-else statement.
• Design of BCD to 7 Segment Driver for common cathode display using case statement.

Basic Flip Flop Design using Behavior Modeling Style-

• Design of D-Flip Flop using Behavior Modeling Style.
• Design of SR (set-reset) Flip Flop using Behavior Modeling Style.
• Design of JK Flip Flop using Behavior Modeling Style.
• Design of Toggle Flip Flop using Behavior Modeling Style.
• Design of D-Latch using Behavior Modeling Style.
• Design of SR- Latch using Behavior Modeling Style.

Shift Registers Design using Behavior Modeling style-

• Design of Serial IN - Serial OUT using Behavior Modeling Style.
• Design of Serial IN - Parallel OUT Shift Register using Behavior Modeling Style.
• Design of Parallel IN - Parallel OUT Shift Register using Behavior Modeling Style.
• Design of Parallel IN - Serial OUT Shift Register using Behavior Modeling Style.