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18 Commits

Author SHA1 Message Date
mrg f84ee04fa9 Single bank passing. 
Parameterized gate column mux of dff height.
End-cap only supply option instead of no vdd in bitcell.
 2020-06-25 14:03:59 -07:00
Joey Kunzler 208c652653 added error for sky130 with invalid x mirroring (for lvs) 2020-06-19 13:59:33 -07:00
mrg bfd1abc79f Replica column pins start at 0 height. 2020-06-10 14:58:55 -07:00
mrg 5514996708 Auto-generate port dependent cell names. 2020-06-05 15:09:22 -07:00
Joey Kunzler b00163e4e1 lvs fix for regression tests 2020-05-29 13:50:34 -07:00
Joey Kunzler 7505fa5aef update for end caps 2020-05-27 20:03:11 -07:00
Bastian Koppelmann dd1afe0313 Bitcell arrays: Allow mirroring on the y axis 
this allows for bitcells that need to be mirrored on the y axis, like
thin cells. However, the portdata elements also need to be mirrored on
the y axis. Otherwise the router will fail horribly when connecting
bitlines.

Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
 2020-01-28 15:51:21 +01:00
Bastian Koppelmann df9f351a91 Add custom cell properties to technologies 
this is technology specific database to store data about the custom
design cells. For now it only contains on which axis the bitcells are
mirrored. This is a first step to support thin cells that need to be
mirrored on the x and y axis.

Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
 2020-01-28 15:46:14 +01:00
Matt Guthaus ed28b4983b Clean up and generalize layer rules. 
Convert metalN to mN.
Generalize helper constants in modules for
space, width, enclose, etc.
Use layer stacks whever possible.
Try to remove drc() calls in liu of helper constants.
 2019-12-17 11:03:36 -08:00
Matt Guthaus ad35f8745e Add direction to pins of all modules 2019-08-06 14:14:09 -07:00
Hunter Nichols 24b1fa38a0 Added graph fixes to handmade multiport cells. 2019-07-30 20:31:32 -07:00
Matt Guthaus fb60b51c72 Add check bits. Clean up logic. Move read/write bit check to next cycle. 2019-07-24 16:57:04 -07:00
Hunter Nichols 9696401f34 Added graph exclusions to replica column to reduce s_en paths. 2019-07-16 23:47:34 -07:00
mrg e550d6ff10 Port name maps between bank and replica array working. 2019-07-15 11:29:29 -07:00
mrg b841fd7ce3 Replica bitcell array with arbitrary RBLs working 2019-07-10 15:56:51 -07:00
mrg b9d993c88b Add dummy bitcell module. 
Modify bitcell logic to guess if bitcell is not "bitcell"
No longer need to specify replica (and dummy) bitcell explicitly
Add support for 1 or 2 port replica array.
 2019-07-05 12:58:52 -07:00
mrg 4523a7b9f6 Replica bitcell array working 2019-06-19 16:03:21 -07:00
mrg b67f06a65a Add replica column for inclusion in replica bitcell array 2019-06-14 12:15:16 -07:00