Subversion Repositories single_port

-- $Author: rpaley_yid $

-- $Date: 2003-01-14 21:48:11 $

-- $Header: /home/marcus/revision_ctrl_test/oc_cvs/cvs/single_port/VHDL/single_port_pkg.vhd,v 1.1.1.1 2003-01-14 21:48:11 rpaley_yid Exp $

-- $Locker:  $

-- $Revision: 1.1.1.1 $

-- $State: Exp $

-- --------------------------------------------------------------------------

-- 

-- Purpose: Package file for single_port memory and testbench

-- 

-- References: 

--   1. The Designer's Guide to VHDL by Peter Ashenden

--      ISBN: 1-55860-270-4 (pbk.)

--   2. Writing Testbenches - Functional Verification of HDL models by 

--      Janick Bergeron | ISBN: 0-7923-7766-4

--

-- Notes: 

--

-- --------------------------------------------------------------------------

LIBRARY IEEE;

USE IEEE.STD_LOGIC_1164.ALL;

USE IEEE.NUMERIC_STD.ALL;

PACKAGE single_port_pkg IS

CONSTANT PAGEDEPTH : INTEGER := 256; -- memory page depth

CONSTANT PAGENUM : INTEGER := 4096; -- number of pages in memory.

CONSTANT DATA_WIDTH : INTEGER := 32; -- memory data bus width

CONSTANT ADDRESS_WIDTH : INTEGER := 16; -- memory address bus width

-- Data bus type for memory interface

SUBTYPE data_inter_typ IS STD_LOGIC_VECTOR(DATA_WIDTH-1 DOWNTO 0);

-- Data bus type for internal memory 

SUBTYPE data_typ IS BIT_VECTOR(DATA_WIDTH-1 DOWNTO 0);

-- Address bus type for memory interface

SUBTYPE addr_inter_typ IS STD_LOGIC_VECTOR(ADDRESS_WIDTH-1 DOWNTO 0);

-- Address bus type for internal memory

SUBTYPE addr_typ IS NATURAL;

-- Operations testbench can do.

TYPE do_typ IS ( init , read , write , dealloc , end_test );

TYPE to_srv_typ IS RECORD -- Record passed from test case to test bench

  do   : do_typ;

  addr : addr_inter_typ;

  data : data_inter_typ;

  event : BOOLEAN;

END RECORD to_srv_typ;

TYPE frm_srv_typ IS RECORD -- Record passed from test bench to test case

  data : data_inter_typ;

  event : BOOLEAN;

END RECORD frm_srv_typ;

END PACKAGE single_port_pkg;

PACKAGE BODY single_port_pkg IS

END PACKAGE BODY single_port_pkg;

-- $Log: not supported by cvs2svn $

-- Revision 1.1  2003/01/14 17:48:44  Default

-- Initial revision

--

-- Revision 1.1  2002/12/24 17:58:49  Default

-- Initial revision

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