| Line 1... |
Line 1... |
-------------------------------------------------------------------------------
|
-------------------------------------------------------------------------------
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--
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--
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-- The Interrupt Controller.
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-- The Interrupt Controller.
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-- It collects the interrupt sources and notifies the decoder.
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-- It collects the interrupt sources and notifies the decoder.
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--
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--
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-- $Id: int.vhd,v 1.3 2004-07-11 16:51:33 arniml Exp $
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-- $Id: int.vhd,v 1.4 2005-06-11 10:08:43 arniml Exp $
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--
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--
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-- Copyright (c) 2004, Arnim Laeuger (arniml@opencores.org)
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-- Copyright (c) 2004, Arnim Laeuger (arniml@opencores.org)
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--
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--
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-- All rights reserved
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-- All rights reserved
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--
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--
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| Line 47... |
Line 47... |
library ieee;
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library ieee;
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use ieee.std_logic_1164.all;
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use ieee.std_logic_1164.all;
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|
|
use work.t48_pack.mstate_t;
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use work.t48_pack.mstate_t;
|
|
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entity int is
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entity t48_int is
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|
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port (
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port (
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clk_i : in std_logic;
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clk_i : in std_logic;
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res_i : in std_logic;
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res_i : in std_logic;
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en_clk_i : in boolean;
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en_clk_i : in boolean;
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| Line 72... |
Line 72... |
int_executed_i : in boolean;
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int_executed_i : in boolean;
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int_pending_o : out boolean;
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int_pending_o : out boolean;
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int_in_progress_o : out boolean
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int_in_progress_o : out boolean
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);
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);
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|
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end int;
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end t48_int;
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|
|
|
|
use work.t48_pack.all;
|
use work.t48_pack.all;
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|
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architecture rtl of int is
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architecture rtl of t48_int is
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|
|
constant tim_int_c : std_logic := '0';
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constant tim_int_c : std_logic := '0';
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constant ext_int_c : std_logic := '1';
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constant ext_int_c : std_logic := '1';
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|
|
type int_state_t is (IDLE, PENDING, INT);
|
type int_state_t is (IDLE, PENDING, INT);
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| Line 234... |
Line 234... |
|
|
-------------------------------------------------------------------------------
|
-------------------------------------------------------------------------------
|
-- File History:
|
-- File History:
|
--
|
--
|
-- $Log: not supported by cvs2svn $
|
-- $Log: not supported by cvs2svn $
|
|
-- Revision 1.3 2004/07/11 16:51:33 arniml
|
|
-- cleanup copyright notice
|
|
--
|
-- Revision 1.2 2004/06/30 21:18:28 arniml
|
-- Revision 1.2 2004/06/30 21:18:28 arniml
|
-- Fix bug report:
|
-- Fix bug report:
|
-- "Program Memory bank can be switched during interrupt"
|
-- "Program Memory bank can be switched during interrupt"
|
-- int module emits int_in_progress signal that is used inside the decoder
|
-- int module emits int_in_progress signal that is used inside the decoder
|
-- to hold mb low for JMP and CALL during interrupts
|
-- to hold mb low for JMP and CALL during interrupts
|
--
|
--
|
-- Revision 1.1 2004/03/23 21:31:52 arniml
|
-- Revision 1.1 2004/03/23 21:31:52 arniml
|
-- initial check-in
|
-- initial check-in
|
--
|
--
|
--
|
|
-------------------------------------------------------------------------------
|
-------------------------------------------------------------------------------
|
|
|
No newline at end of file
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No newline at end of file
|
