| Line 1... |
Line 1... |
-------------------------------------------------------------------------------
|
-------------------------------------------------------------------------------
|
--
|
--
|
-- Interface Timing Checker.
|
-- Interface Timing Checker.
|
--
|
--
|
-- $Id: if_timing.vhd,v 1.5 2004-12-03 19:58:55 arniml Exp $
|
-- $Id: if_timing.vhd,v 1.6 2005-11-01 21:20:36 arniml Exp $
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--
|
--
|
-- Copyright (c) 2004, Arnim Laeuger (arniml@opencores.org)
|
-- Copyright (c) 2004, Arnim Laeuger (arniml@opencores.org)
|
--
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--
|
-- All rights reserved
|
-- All rights reserved
|
--
|
--
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| Line 307... |
Line 307... |
-- Check PROG
|
-- Check PROG
|
--
|
--
|
prog_check: process (prog_n_i)
|
prog_check: process (prog_n_i)
|
begin
|
begin
|
case prog_n_i is
|
case prog_n_i is
|
|
when '0' =>
|
|
-- tCP: Port Control Setup to PROG'
|
|
assert (now - last_p2_change_s) > (t_CY * 2/15 - 80 ns)
|
|
report "Timing violation of tCP on P2 vs PROG'!"
|
|
severity error;
|
|
|
when '1' =>
|
when '1' =>
|
-- tPP: PROG Pulse Width
|
-- tPP: PROG Pulse Width
|
assert (now - last_prog_n_fall_s) > (t_CY * 7/10 - 250 ns)
|
assert (now - last_prog_n_fall_s) > (t_CY * 7/10 - 250 ns)
|
report "Timing violation of tPP!"
|
report "Timing violation of tPP!"
|
severity error;
|
severity error;
|
| Line 587... |
Line 593... |
|
|
-------------------------------------------------------------------------------
|
-------------------------------------------------------------------------------
|
-- File History:
|
-- File History:
|
--
|
--
|
-- $Log: not supported by cvs2svn $
|
-- $Log: not supported by cvs2svn $
|
|
-- Revision 1.5 2004/12/03 19:58:55 arniml
|
|
-- add others to case statement
|
|
--
|
-- Revision 1.4 2004/10/25 19:33:13 arniml
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-- Revision 1.4 2004/10/25 19:33:13 arniml
|
-- remove tAW sanity check
|
-- remove tAW sanity check
|
-- conflicts with OUTL A, BUS
|
-- conflicts with OUTL A, BUS
|
--
|
--
|
-- Revision 1.3 2004/09/12 00:31:50 arniml
|
-- Revision 1.3 2004/09/12 00:31:50 arniml
|
