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/**
* 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
*/
`ifndef SKY130_FD_SC_LP__UDP_PWRGOOD_PP_PG_S_TB_V
`define SKY130_FD_SC_LP__UDP_PWRGOOD_PP_PG_S_TB_V
/**
* UDP_OUT :=x when VPWR!=1 or VGND!=0
* UDP_OUT :=UDP_IN when VPWR==1 and VGND==0
*
* Autogenerated test bench.
*
* WARNING: This file is autogenerated, do not modify directly!
*/
`timescale 1ns / 1ps
`default_nettype none
`include "sky130_fd_sc_lp__udp_pwrgood_pp_pg_s.v"
module top();
// Inputs are registered
reg UDP_IN;
reg VPWR;
reg VGND;
reg SLEEP;
// Outputs are wires
wire UDP_OUT;
initial
begin
// Initial state is x for all inputs.
SLEEP = 1'bX;
UDP_IN = 1'bX;
VGND = 1'bX;
VPWR = 1'bX;
#20 SLEEP = 1'b0;
#40 UDP_IN = 1'b0;
#60 VGND = 1'b0;
#80 VPWR = 1'b0;
#100 SLEEP = 1'b1;
#120 UDP_IN = 1'b1;
#140 VGND = 1'b1;
#160 VPWR = 1'b1;
#180 SLEEP = 1'b0;
#200 UDP_IN = 1'b0;
#220 VGND = 1'b0;
#240 VPWR = 1'b0;
#260 VPWR = 1'b1;
#280 VGND = 1'b1;
#300 UDP_IN = 1'b1;
#320 SLEEP = 1'b1;
#340 VPWR = 1'bx;
#360 VGND = 1'bx;
#380 UDP_IN = 1'bx;
#400 SLEEP = 1'bx;
end
sky130_fd_sc_lp__udp_pwrgood_pp$PG$S dut (.UDP_IN(UDP_IN), .VPWR(VPWR), .VGND(VGND), .SLEEP(SLEEP), .UDP_OUT(UDP_OUT));
endmodule
`default_nettype wire
`endif // SKY130_FD_SC_LP__UDP_PWRGOOD_PP_PG_S_TB_V