cells/lpflow_isobufsrckapwr/sky130_fd_sc_hd__lpflow_isobufsrckapwr.functional.pp.v

/*
 * 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_HD__LPFLOW_ISOBUFSRCKAPWR_FUNCTIONAL_PP_V
`define SKY130_FD_SC_HD__LPFLOW_ISOBUFSRCKAPWR_FUNCTIONAL_PP_V

/**
 * lpflow_isobufsrckapwr: Input isolation, noninverted sleep on
 *                        keep-alive power rail.
 *
 *                        X = (!A | SLEEP)
 *
 * Verilog simulation functional model.
 */

`timescale 1ns / 1ps
`default_nettype none

// Import user defined primitives.
`include "../../models/udp_pwrgood_l_pp_pg/sky130_fd_sc_hd__udp_pwrgood_l_pp_pg.v"
`include "../../models/udp_pwrgood_l_pp_pg_s/sky130_fd_sc_hd__udp_pwrgood_l_pp_pg_s.v"

`celldefine
module sky130_fd_sc_hd__lpflow_isobufsrckapwr (
    X    ,
    SLEEP,
    A    ,
    KAPWR,
    VPWR ,
    VGND ,
    VPB  ,
    VNB
);

    // Module ports
    output X    ;
    input  SLEEP;
    input  A    ;
    input  KAPWR;
    input  VPWR ;
    input  VGND ;
    input  VPB  ;
    input  VNB  ;

    // Local signals
    wire not0_out       ;
    wire and0_out_X     ;
    wire pwrgood0_out_X ;
    wire pwrgood1_out_x2;

    //                                     Name      Output           Other arguments
    not                                    not0     (not0_out       , SLEEP                        );
    and                                    and0     (and0_out_X     , not0_out, A                  );
    sky130_fd_sc_hd__udp_pwrgood$l_pp$PG$S pwrgood0 (pwrgood0_out_X , and0_out_X, VPWR, VGND, SLEEP);
    sky130_fd_sc_hd__udp_pwrgood$l_pp$PG   pwrgood1 (pwrgood1_out_x2, pwrgood0_out_X, KAPWR, VGND  );
    buf                                    buf0     (X              , pwrgood1_out_x2              );

endmodule
`endcelldefine

`default_nettype wire
`endif  // SKY130_FD_SC_HD__LPFLOW_ISOBUFSRCKAPWR_FUNCTIONAL_PP_V