这是一个基于xilinx平台的8051处理器文件

源代码在线查看: mc8051_top_struc.vhd

软件大小: 4416 K
上传用户: yq0577
关键词: xilinx 8051 处理器
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相关代码

				-------------------------------------------------------------------------------
				--                                                                           --
				--          X       X   XXXXXX    XXXXXX    XXXXXX    XXXXXX      X          --
				--          XX     XX  X      X  X      X  X      X  X           XX          --
				--          X X   X X  X         X      X  X      X  X          X X          --
				--          X  X X  X  X         X      X  X      X  X         X  X          --
				--          X   X   X  X          XXXXXX   X      X   XXXXXX      X          --
				--          X       X  X         X      X  X      X         X     X          --
				--          X       X  X         X      X  X      X         X     X          --
				--          X       X  X      X  X      X  X      X         X     X          --
				--          X       X   XXXXXX    XXXXXX    XXXXXX    XXXXXX      X          --
				--                                                                           --
				--                                                                           --
				--                       O R E G A N O   S Y S T E M S                       --
				--                                                                           --
				--                            Design & Consulting                            --
				--                                                                           --
				-------------------------------------------------------------------------------
				--                                                                           --
				--         Web:           http://www.oregano.at/                             --
				--                                                                           --
				--         Contact:       8051@oregano.at                                  --
				--                                                                           --
				-------------------------------------------------------------------------------
				--                                                                           --
				--  MC8051 - VHDL 8051 Microcontroller IP Core                               --
				--  Copyright (C) 2001 OREGANO SYSTEMS                                       --
				--                                                                           --
				--  This library is free software; you can redistribute it and/or            --
				--  modify it under the terms of the GNU Lesser General Public               --
				--  License as published by the Free Software Foundation; either             --
				--  version 2.1 of the License, or (at your option) any later version.       --
				--                                                                           --
				--  This library is distributed in the hope that it will be useful,          --
				--  but WITHOUT ANY WARRANTY; without even the implied warranty of           --
				--  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU        --
				--  Lesser General Public License for more details.                          --
				--                                                                           --
				--  Full details of the license can be found in the file LGPL.TXT.           --
				--                                                                           --
				--  You should have received a copy of the GNU Lesser General Public         --
				--  License along with this library; if not, write to the Free Software      --
				--  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA  --
				--                                                                           --
				-------------------------------------------------------------------------------
				--
				--
				--         Author:                 Helmut Mayrhofer
				--
				--         Filename:               mc8051_top_struc.vhd
				--
				--         Date of Creation:       Mon Aug  9 12:14:48 1999
				--
				--         Version:                $Revision: 1.7 $
				--
				--         Date of Latest Version: $Date: 2002/01/07 12:17:45 $
				--
				--
				--         Description: Connect the mc8051 core to its instruction and data
				--                      memories.
				--
				--
				--
				--
				-------------------------------------------------------------------------------
				architecture struc of mc8051_top is
				    
				  signal s_rom_adr:      std_logic_vector(15 downto 0);  -- Programmcounter =
				  signal s_rom_adr_sml:  std_logic_vector(9 downto 0);  -- *** new                                                         -- ROM-adress
				  signal s_clk_pre    : std_logic;  -- *** new
				  signal s_rom_data:     std_logic_vector(7 downto 0);   -- data input from ROM
				  signal s_ram_data_out: std_logic_vector(7 downto 0);   -- data output to
				                                                         -- internal RAM
				  signal s_ram_data_in:  std_logic_vector(7 downto 0);   -- data input from
				                                                         -- internal RAM
				  signal s_ram_adr:      std_logic_vector(6 downto 0);   -- internal RAM-adress
				  signal s_ram_wr:       std_logic;                      -- read (0)/write (1)
				                                                         -- internal RAM
				  signal s_ram_en:       std_logic;                      -- RAM-block enable
				  signal s_ramx_data_out: std_logic_vector(7 downto 0);  -- data output to
				                                                         -- ext. RAM
				  signal s_ramx_data_in:  std_logic_vector(7 downto 0);  -- data input from
				                                                         -- ext. RAM
				  signal s_ramx_adr:      std_logic_vector(15 downto 0); -- ext. RAM-adress
				  signal s_ramx_wr:       std_logic;                     -- read (0)/write (1)
				                                                         -- ext. RAM
				
				
				begin                 -- architecture structural
				  
				  s_rom_adr_sml 				  i_mc8051_core : mc8051_core
				    port map(clk         => s_clk_pre,
				             reset       => reset,
				             rom_data_i  => s_rom_data,
				             ram_data_i  => s_ram_data_out,
				             int0_i      => int0_i,
				             int1_i      => int1_i,
				             all_t0_i    => all_t0_i,
				             all_t1_i    => all_t1_i,
				             all_rxd_i   => all_rxd_i,
				             p0_i        => p0_i,
				             p1_i        => p1_i,
				             p2_i        => p2_i,
				             p3_i        => p3_i,
				             p0_o        => p0_o,
				             p1_o        => p1_o,
				             p2_o        => p2_o,
				             p3_o        => p3_o, 
				             all_rxd_o   => all_rxd_o,
				             all_txd_o   => all_txd_o,
				             all_rxdwr_o => all_rxdwr_o,
				             rom_adr_o   => s_rom_adr,
				             ram_data_o  => s_ram_data_in,
				             ram_adr_o   => s_ram_adr,
				             ram_wr_o    => s_ram_wr,
				             ram_en_o    => s_ram_en,
				             datax_i     => s_ramx_data_in,
				             datax_o     => s_ramx_data_out,
				             adrx_o      => s_ramx_adr,
				             wrx_o       => s_ramx_wr);
				 
				    
				  -----------------------------------------------------------------------------
				  -- Hook up the general purpose 128x8 synchronous on-chip RAM. 
				  i_mc8051_ram : mc8051_ram
				    port map (clk          => s_clk_pre,
					      --reset        => reset,
					           addr    => s_ram_adr,
				              din   => s_ram_data_in,
				              we     => s_ram_wr,
				              en     => s_ram_en,
				              dout   => s_ram_data_out);
				  -- THIS RAM IS A MUST HAVE!!
				  -----------------------------------------------------------------------------
				
				
				  -----------------------------------------------------------------------------
				  -- Hook up the (up to) 64kx8 synchronous on-chip ROM.
				  i_mc8051_rom : mc8051_rom
				    port map (clk          => s_clk_pre,
					      --reset        => reset,
					           addr    => s_rom_adr_sml,
				              dout   => s_rom_data);
				  -- THE ROM OF COURSE IS A MUST HAVE, ALTHOUGH THE SIZE CAN BE SMALLER!!
				  -----------------------------------------------------------------------------
				  
				    
				  -----------------------------------------------------------------------------
				  -- Hook up the (up to) 64kx8 synchronous RAM.
				  --i_mc8051_ramx : mc8051_ramx
				  --  port map (clk          => clk,
					--      reset        => reset,
					--      ram_adr_i    => s_ramx_adr,
				   --           ram_data_i   => s_ramx_data_out,
				   --           ram_wr_i     => s_ramx_wr,
				   --           ram_data_o   => s_ramx_data_in);
				  -- THIS RAM (IF USED) CAN BE ON OR OFF CHIP, THE SIZE IS ARBITRARY.
				  -----------------------------------------------------------------------------
				  i_mc8051_clockdiv : mc8051_clockdiv
				    port map (clk    => clk,
					      clkdiv => s_clk_pre);  -- *** new
				  
				end struc;
							

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