blob: 1e65755637c409a2e2b3baa6ef146ec79901b245 [file] [log] [blame]
/*
* Copyright 2020 The SkyWater PDK Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* SPDX-License-Identifier: Apache-2.0
*/
specify
(negedge RESET_B => (Q +: RESET_B ) ) = 0:0:0; // delay is tris
(posedge CLK => (Q : CLK ) ) = (0:0:0,0:0:0); // delays are tris,tfall
$width (posedge CLK &&& (RESET_B===1'b1) , 0:0:0, 0, notifier);
$width (negedge CLK &&& (RESET_B===1'b1) , 0:0:0, 0, notifier);
$width (negedge RESET_B , 0:0:0 , 0 , notifier ) ;
$recrem ( posedge RESET_B , posedge CLK , 0:0:0, 0:0:0, notifier , , , RESETB_delayed , CLK_delayed ) ;
$setuphold ( posedge CLK , posedge D , 0:0:0, 0:0:0, notifier , , COND1 , CLK_delayed , D_delayed ) ;
$setuphold ( posedge CLK , negedge D , 0:0:0, 0:0:0, notifier , , COND1 , CLK_delayed , D_delayed ) ;
$setuphold ( posedge CLK , posedge SCD , 0:0:0, 0:0:0, notifier , , COND2 , CLK_delayed , SCD_delayed ) ;
$setuphold ( posedge CLK , negedge SCD , 0:0:0, 0:0:0, notifier , , COND2 , CLK_delayed , SCD_delayed ) ;
$setuphold ( posedge CLK , posedge SCE , 0:0:0, 0:0:0, notifier , , COND3 , CLK_delayed , SCE_delayed ) ;
$setuphold ( posedge CLK , negedge SCE , 0:0:0, 0:0:0, notifier , , COND3 , CLK_delayed , SCE_delayed ) ;
endspecify