-------------------------------------------------------------------------------
-- --
-- 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 --
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-- X X X X X X X X X --
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-- 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: Roland H鰈ler
--
-- Filename: mc8051_tmrctr_.vhd
--
-- Date of Creation: Mon Aug 9 12:14:48 1999
--
-- Version: $Revision: 1.4 $
--
-- Date of Latest Version: $Date: 2002/01/07 12:17:45 $
--
--
-- Description: Timer/Counter unit of the mc8051 microcontroller.
--
--
--
--
-------------------------------------------------------------------------------
library IEEE;
use IEEE.std_logic_1164.all;
use IEEE.std_logic_arith.all;
-----------------------------ENTITY DECLARATION--------------------------------
entity mc8051_tmrctr is
port (clk : in std_logic; --< system clock
reset : in std_logic; --< system reset
int0_i : in std_logic; --< interrupt 0
int1_i : in std_logic; --< interrupt 1
t0_i : in std_logic; --< external clock for
-- timer/counter0
t1_i : in std_logic; --< external clock for
-- timer/counter1
tmod_i : in std_logic_vector(7 downto 0); --< from SFR register
tcon_tr0_i : in std_logic; --< timer run 0
tcon_tr1_i : in std_logic; --< timer run 1
reload_i : in std_logic_vector(7 downto 0); --< to load counter
wt_en_i : in std_logic; --< indicates reload
wt_i : in std_logic_vector(1 downto 0); --< reload which reg.
th0_o : out std_logic_vector(7 downto 0); --< contents of th0
tl0_o : out std_logic_vector(7 downto 0); --< contents of tl0
th1_o : out std_logic_vector(7 downto 0); --< contents of th1
tl1_o : out std_logic_vector(7 downto 0); --< contents of tl1
tf0_o : out std_logic; --< interrupt flag 0
tf1_o : out std_logic); --< interrupt flag 1
end mc8051_tmrctr;
