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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_HDLL__SDLCLKP_BEHAVIORAL_PP_V
`define SKY130_FD_SC_HDLL__SDLCLKP_BEHAVIORAL_PP_V
/**
* sdlclkp: Scan gated clock.
*
* 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_hdll__udp_dlatch_p_pp_pg_n.v"
`celldefine
module sky130_fd_sc_hdll__sdlclkp (
GCLK,
SCE ,
GATE,
CLK ,
VPWR,
VGND,
VPB ,
VNB
);
// Module ports
output GCLK;
input SCE ;
input GATE;
input CLK ;
input VPWR;
input VGND;
input VPB ;
input VNB ;
// Local signals
wire m0 ;
wire m0n ;
wire clkn ;
wire CLK_delayed ;
wire SCE_delayed ;
wire GATE_delayed ;
wire SCE_gate_delayed;
reg notifier ;
wire awake ;
wire SCE_awake ;
wire GATE_awake ;
// Name Output Other arguments
not not0 (m0n , m0 );
not not1 (clkn , CLK_delayed );
nor nor0 (SCE_gate_delayed, GATE_delayed, SCE_delayed );
sky130_fd_sc_hdll__udp_dlatch$P_pp$PG$N dlatch0 (m0 , SCE_gate_delayed, clkn, notifier, VPWR, VGND);
and and0 (GCLK , m0n, CLK_delayed );
assign awake = ( VPWR === 1'b1 );
assign SCE_awake = ( awake & ( GATE_delayed === 1'b0 ) );
assign GATE_awake = ( awake & ( SCE_delayed === 1'b0 ) );
endmodule
`endcelldefine
`default_nettype wire
`endif // SKY130_FD_SC_HDLL__SDLCLKP_BEHAVIORAL_PP_V