| # SPDX-FileCopyrightText: 2020 Efabless Corporation |
| # |
| # 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. |
| # |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| # sky130A.par --- Parameter file for GrayWolf |
| # NOTE: all distance units are in centimicrons unless otherwise stated |
| # WARNING: this is NOT tcl syntax! No Comments on end of actual data line. |
| # The vast majority of quantities here are not used (read instead from techLEF, etc.) |
| |
| RULES |
| # values are resistance in ohms/sq and capacitance in fF/um^2 |
| # TODO: properly pick directions |
| layer metal1 0.105 0.0001 horizontal |
| layer metal2 0.105 0.0001 vertical |
| layer metal3 0.105 0.0001 horizontal |
| layer metal4 0.105 0.0001 vertical |
| layer metal5 0.105 0.0001 horizontal |
| |
| via via12 metal1 metal2 |
| via via23 metal2 metal3 |
| via via34 metal3 metal4 |
| via via45 metal4 metal5 |
| |
| # 0.5 um |
| width metal1 50 |
| width metal2 60 |
| # 0.6 um |
| width metal3 60 |
| width metal4 60 |
| width metal5 60 |
| |
| # TODO verify these two numbers |
| width via12 50 |
| width via23 50 |
| width via34 50 |
| width via45 50 |
| |
| # Set spacing = track pitch - width, so that GrayWolf places pins |
| # on the right pitch. |
| # Pitches are (in um): |
| # metal1 = 200, metal2 = 160, metal3 = 200, metal4 = 320 |
| ## pitch m1: 1.3um m2: 1.4um m3: 1.3um |
| ## width m1: 0.5um m2: 0.6um m3: 0.6um |
| ## space 0.8 0.8 0.7 (pitch calc) |
| ## fab-space 0.45 0.5 0.6 |
| |
| spacing metal1 metal1 80 |
| spacing metal2 metal2 80 |
| spacing metal3 metal3 80 |
| spacing metal4 metal4 80 |
| spacing metal5 metal5 80 |
| |
| # (WAS:) Stacked vias allowed |
| # spacing via12 via23 0 |
| |
| # To disable Stacked?: give non-zero spacing (centimicrons = 10 nanometer = 1/100 of micron) |
| # TODO need real value here: |
| spacing via12 via23 0 |
| spacing via23 via34 0 |
| spacing via34 via45 0 |
| |
| # .2um .15um |
| overhang via12 metal1 20 |
| overhang via12 metal2 15 |
| |
| overhang via23 metal2 20 |
| overhang via23 metal3 15 |
| |
| overhang via34 metal3 14 |
| overhang via34 metal4 16 |
| overhang via45 metal4 14 |
| overhang via45 metal5 16 |
| ENDRULES |
| |
| *vertical_wire_weight : 1.0 |
| *vertical_path_weight : 1.0 |
| *padspacing : variable |
| *rowSep : 0.0 0 |
| # min pitch of m1,m2,m3 (FIXME): |
| *track.pitch : 130 |
| *graphics.wait : off |
| *last_chance.wait : off |
| *random.seed : 12345 |
| # TODO: proper track.pitch number above, plus feedThruWidth below |
| |
| TWMC*chip.aspect.ratio : 1.0 |
| |
| # FIXME: Change width to width of minimum fill cell |
| TWSC*feedThruWidth : 280 layer 1 |
| TWSC*do.global.route : on |
| TWSC*ignore_feeds : true |
| TWSC*call_row_evener : true |
| TWSC*even_rows_maximally : true |
| # TWSC*no.graphics : on |
| |
| GENR*row_to_tile_spacing: 1 |
| # GENR*numrows : 6 |
| GENR*flip_alternate_rows : 1 |