| /** |
| * 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_HDLL__UDP_PWRGOOD_PP_PG_S_TB_V |
| `define SKY130_FD_SC_HDLL__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_hdll__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_hdll__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_HDLL__UDP_PWRGOOD_PP_PG_S_TB_V |