# 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 Dict, Any, List
import pkg_resources
from pathlib import Path
from pybag.enum import TermType
from bag.design.module import Module
from bag.design.database import ModuleDB
from bag.util.immutable import Param
# noinspection PyPep8Naming
[docs]class bag3_digital__se_to_diff(Module):
"""Module for library bag3_digital cell se_to_diff.
Fill in high level description here.
"""
[docs] yaml_file = pkg_resources.resource_filename(__name__,
str(Path('netlist_info',
'se_to_diff.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) -> Dict[str, str]:
return dict(
invp_params_list='Positive output chain parameters.',
invn_params_list='Negative output chain parameters.',
pg_params='passgate parameters.',
export_pins='True to export simulation pins.',
)
@classmethod
[docs] def get_default_param_values(cls) -> Dict[str, Any]:
return dict(export_pins=False)
[docs] def design(self, invp_params_list: List[Param], invn_params_list: List[Param],
pg_params: Param, export_pins: bool) -> None:
if len(invp_params_list) != 2 or len(invn_params_list) != 3:
raise ValueError('Wrong number of parameters for inverters.')
self.instances['XINVP0'].design(**invp_params_list[0])
self.instances['XINVP1'].design(**invp_params_list[1])
self.instances['XINVN0'].design(**invn_params_list[0])
self.instances['XINVN1'].design(**invn_params_list[1])
self.instances['XINVN2'].design(**invn_params_list[2])
self.instances['XPASS'].design(**pg_params)
if export_pins:
self.add_pin('midn_pass0', TermType.output)
self.add_pin('midn_pass1', TermType.output)
self.add_pin('midn_inv', TermType.output)
self.add_pin('midp', TermType.output)