| /** |
| * 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__UDP_DFF_NRS_V |
| `define SKY130_FD_SC_LS__UDP_DFF_NRS_V |
| |
| /** |
| * udp_dff$NRS: Negative edge triggered D flip-flop (Q output UDP) |
| * with both active high reset and set (reset dominate). |
| * |
| * Verilog primitive definition. |
| * |
| * WARNING: This file is autogenerated, do not modify directly! |
| */ |
| |
| `timescale 1ns / 1ps |
| `default_nettype none |
| |
| `ifdef NO_PRIMITIVES |
| `include "./sky130_fd_sc_ls__udp_dff_nrs.blackbox.v" |
| `else |
| primitive sky130_fd_sc_ls__udp_dff$NRS ( |
| Q , |
| SET , |
| RESET, |
| CLK_N, |
| D |
| ); |
| |
| output Q ; |
| input SET ; |
| input RESET; |
| input CLK_N; |
| input D ; |
| |
| reg Q; |
| |
| table |
| // SET RESET CLK_N D : Qt : Qt+1 |
| 1 0 ? ? : ? : 1 ; // Asserting preset |
| * 0 ? ? : 1 : 1 ; // Changing preset |
| ? 1 ? ? : ? : 0 ; // Asserting reset (dominates preset) |
| 0 * ? ? : 0 : 0 ; // Changing reset |
| 0 ? (01) 0 : ? : 0 ; // rising clock |
| ? 0 (01) 1 : ? : 1 ; // rising clock |
| 0 ? p 0 : 0 : 0 ; // potential rising clock |
| ? 0 p 1 : 1 : 1 ; // potential rising clock |
| 0 0 n ? : ? : - ; // Clock falling register output does not change |
| 0 0 ? * : ? : - ; // Changing Data |
| endtable |
| endprimitive |
| `endif // NO_PRIMITIVES |
| |
| `default_nettype wire |
| `endif // SKY130_FD_SC_LS__UDP_DFF_NRS_V |