# SPDX-License-Identifier: Apache-2.0
# Copyright 2019 Blue Cheetah Analog Design Inc.
#
# 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
#
# http://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.
# -*- coding: utf-8 -*-
from typing import Mapping, Any, Optional
import pkg_resources
from pathlib import Path
from bag.design.module import Module
from bag.design.database import ModuleDB
from bag.util.immutable import Param
# noinspection PyPep8Naming
[docs]class bag3_digital__mux2to1_matched(Module):
"""Module for library bag3_digital cell mux2to1_matched.
Fill in high level description here.
"""
[docs] yaml_file = pkg_resources.resource_filename(__name__,
str(Path('netlist_info',
'mux2to1_matched.yaml')))
def __init__(self, database: ModuleDB, params: Param, **kwargs: Any) -> None:
Module.__init__(self, self.yaml_file, database, params, **kwargs)
@classmethod
[docs] def get_params_info(cls) -> Mapping[str, str]:
return dict(
inv_params='Output inverter parameters',
tri_params='Tristate inverter parameters',
sel_params='Select inverter params',
)
@classmethod
[docs] def get_default_param_values(cls) -> Mapping[str, Any]:
return dict(
sel_params=None,
)
[docs] def design(self, inv_params: Param, tri_params: Param, sel_params: Optional[Param]) -> None:
self.instances['XPASS<1:0>'].design(**tri_params)
self.instances['XBUF'].design(**inv_params)
self.instances['XSUM'].design(nin=2)
if sel_params:
self.instances['XSEL'].design(**sel_params)
self.remove_pin('selb')
else:
self.remove_instance('XSEL')