blob: 69284b01eb18eb0be55ed0c06c4672494754ab21 [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
*/
`ifndef SKY130_FD_SC_LS__DLXBN_BEHAVIORAL_V
`define SKY130_FD_SC_LS__DLXBN_BEHAVIORAL_V
/**
* dlxbn: Delay latch, inverted enable, complementary outputs.
*
* Verilog simulation functional model.
*/
`timescale 1ns / 1ps
`default_nettype none
// Import user defined primitives.
`include "../../models/udp_dlatch_p_pp_pg_n/sky130_fd_sc_ls__udp_dlatch_p_pp_pg_n.v"
`celldefine
module sky130_fd_sc_ls__dlxbn (
Q ,
Q_N ,
D ,
GATE_N
);
// Module ports
output Q ;
output Q_N ;
input D ;
input GATE_N;
// Module supplies
supply1 VPWR;
supply0 VGND;
supply1 VPB ;
supply0 VNB ;
// Local signals
wire GATE ;
wire buf_Q ;
wire GATE_N_delayed;
wire D_delayed ;
reg notifier ;
wire awake ;
wire 1 ;
// Name Output Other arguments
not not0 (GATE , GATE_N_delayed );
sky130_fd_sc_ls__udp_dlatch$P_pp$PG$N dlatch0 (buf_Q , D_delayed, GATE, notifier, VPWR, VGND);
assign awake = ( VPWR === 1 );
buf buf0 (Q , buf_Q );
not not1 (Q_N , buf_Q );
endmodule
`endcelldefine
`default_nettype wire
`endif // SKY130_FD_SC_LS__DLXBN_BEHAVIORAL_V