MAC_CONTROLER.vhd
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| text/x-vhdl
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VhdlLexer
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r1 | ------------------------------------------------------------------------------ | ||
-- This file is a part of the LPP VHDL IP LIBRARY | ||||
-- Copyright (C) 2009 - 2010, Laboratory of Plasmas Physic - CNRS | ||||
-- | ||||
-- This program is free software; you can redistribute it and/or modify | ||||
-- it under the terms of the GNU General Public License as published by | ||||
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r19 | -- the Free Software Foundation; either version 3 of the License, or | ||
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r1 | -- (at your option) any later version. | ||
-- | ||||
-- This program 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 General Public License for more details. | ||||
-- | ||||
-- You should have received a copy of the GNU General Public License | ||||
-- along with this program; if not, write to the Free Software | ||||
-- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||||
------------------------------------------------------------------------------- | ||||
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r38 | -- Author : Alexis Jeandet | ||
-- Mail : alexis.jeandet@lpp.polytechnique.fr | ||||
---------------------------------------------------------------------------- | ||||
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r1 | library IEEE; | ||
use IEEE.numeric_std.all; | ||||
use IEEE.std_logic_1164.all; | ||||
library lpp; | ||||
use lpp.general_purpose.all; | ||||
--IDLE =00 MAC =01 MULT =10 ADD =11 | ||||
entity MAC_CONTROLER is | ||||
port( | ||||
ctrl : in std_logic_vector(1 downto 0); | ||||
MULT : out std_logic; | ||||
ADD : out std_logic; | ||||
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r122 | LOAD_ADDER : out std_logic; | ||
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r1 | MACMUX_sel : out std_logic; | ||
MACMUX2_sel : out std_logic | ||||
); | ||||
end MAC_CONTROLER; | ||||
architecture ar_MAC_CONTROLER of MAC_CONTROLER is | ||||
begin | ||||
MULT <= '0' when (ctrl = "00" or ctrl = "11") else '1'; | ||||
ADD <= '0' when (ctrl = "00" or ctrl = "10") else '1'; | ||||
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r122 | LOAD_ADDER <= '1' when (ctrl = "10") else '0'; -- PATCH JC : mem mult result | ||
-- to permit to compute a | ||||
-- MULT follow by a MAC | ||||
--MACMUX_sel <= '0' when (ctrl = "00" or ctrl = "01") else '1'; | ||||
MACMUX_sel <= '0' when (ctrl = "00" or ctrl = "01" OR ctrl = "10") else '1'; | ||||
MACMUX2_sel <= '0' when (ctrl = "00" or ctrl = "01" or ctrl = "11") else '1'; | ||||
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r1 | |||
end ar_MAC_CONTROLER; | ||||