CPE129_hw21b_soln - CPE 129 Homework 21B Solution W....

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
CPE 129 Homework 21B Solution W. Pilkington Finite State Machine Design Synchronous Cumulative Adder : 1) Based on the given State Transition Diagram, write the VHDL code to implement the Synchronous Cumulative Adder. a. Use a “Dependent PS/NS” style Behavioral Architecture, with 2 processes (Synchronous and Combinational processes). b. Use enumerated state encoding in VHDL to implement an Output-Coded State Assignment (state variables = Cumulative_Sum output) to eliminate some of the output logic. c. Implement the Carry_Out signal as a separate Mealy-type output, as shown. d. Include an active-low asynchronous reset signal Reset_L that will force the Adder to reset the Cumulative_Sum to “00”, and begin adding from there. ---------------------------------------------------------------------------------- -- Company: Californeah Polyunsaturated State Univarsity -- Engineer: Professor F.S. MacHine -- -- Module Name: hw21BFSM - Behavioral -- Project Name: Synch_Cumul_Adder_FSM -- Target Devices: Digilent Nexys – Spartan 3 FPGA -- Tool versions: ISE 9.1i -- Description: -- Finite State Machine for Synchronous C -- Cumulative Adder (Assignment #21B) ---------------------------------------------------------------------------------- library IEEE; use IEEE.STD_LOGIC_1164.ALL; entity Synch_Cumul_Adder_FSM is Port ( X : in STD_LOGIC_VECTOR (1 downto 0); CLK, Reset_L : in STD_LOGIC; Cumulative_Sum : out STD_LOGIC_VECTOR (1 downto 0); Carry_Out : out STD_LOGIC);
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 03/15/2009 for the course CPE 129 taught by Professor Mealy during the Spring '07 term at Cal Poly.

Page1 / 5

CPE129_hw21b_soln - CPE 129 Homework 21B Solution W....

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online