jens
bdb8fec295
git-svn-id: http://moon:8086/svn/vhdl/trunk@1424 cc03376c-175c-47c8-b038-4cd826a8556b
51 lines
2.0 KiB
VHDL
51 lines
2.0 KiB
VHDL
--------------------------------------------------------------------------
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--
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-- Copyright (C) 1993, Peter J. Ashenden
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-- Mail: Dept. Computer Science
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-- University of Adelaide, SA 5005, Australia
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-- e-mail: petera@cs.adelaide.edu.au
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--
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-- This program is free software; you can redistribute it and/or modify
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-- it under the terms of the GNU General Public License as published by
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-- the Free Software Foundation; either version 1, or (at your option)
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-- any later version.
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--
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-- This program is distributed in the hope that it will be useful,
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-- but WITHOUT ANY WARRANTY; without even the implied warranty of
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-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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-- GNU General Public License for more details.
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--
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-- You should have received a copy of the GNU General Public License
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-- along with this program; if not, write to the Free Software
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-- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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--
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--------------------------------------------------------------------------
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--
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-- $RCSfile: dlx_bus_monitor.vhdl,v $ $Revision: 2.1 $ $Date: 1993/10/31 22:35:51 $
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--
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--------------------------------------------------------------------------
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--
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-- Entity declaration of DLX bus monitor
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--
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use work.dlx_types.all,
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work.mem_types.all;
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entity dlx_bus_monitor is
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generic (enable : boolean := true; -- enable monitoring
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verbose : boolean := true; -- verbose vs brief info
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tag : string := "");
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port (phi1, phi2 : in bit; -- 2-phase non-overlapping clocks
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reset : in bit; -- synchronous reset
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a : in dlx_address; -- address bus
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d : in dlx_word; -- data bus
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halt : in bit; -- halt indicator
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width : in mem_width; -- byte/haldword/word indicator
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write_enable : in bit; -- selects read or write cycle
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burst : in bit := '0'; -- indicates more to come in burst
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mem_enable : in bit; -- starts memory cycle
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ifetch : in bit; -- indicates instruction fetch
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ready : in bit); -- status from memory system
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end dlx_bus_monitor;
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