📄 mc8051_tmrctr_.vhd
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--------------------------------------------------------------------------------- ---- 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: mc8051@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;⌨️ 快捷键说明
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