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Author SHA1 Message Date
Ethan Mahintorabi 80cf294140
Update documentation on build space from sp to bd 
It was decided that sp is too close to single port, and should be renamed bd to reference the build space.

Closes #338
 2021-09-28 15:07:13 -07:00
Tim 'mithro' Ansell f7d23040ac sky130_fd_io: Initial documentation only release. 
The SKY130 IO cells is a toolkit IP. It contains all the cells and
primitives required to construct an I/O ring in the SKY130 technology.

This sky130_fd_io library contained in this document covers different
kinds of I/O cells,

 * a general purpose I/O (`sky130_fd_io__gpio`), and
 * a special I/O (`sky130_fd_io__sio`),
 * a reference generator (`sky130_fd_io__refgen`) for providing voltage
   references to the `sky130_fd_io__sio`, and
 * Power and Ground (PG) cells that make up the I/O ring.

Signed-off-by: Tim 'mithro' Ansell <me@mith.ro>
 2020-10-13 14:23:56 -07:00
Tim 'mithro' Ansell 4abbce3cf3 docs: Adding summary of foundry provided cells. 
Provides a little bit of summary information on each of the foundry
provided standard cells.

Signed-off-by: Tim 'mithro' Ansell <me@mith.ro>
 2020-10-12 04:28:33 -07:00
Tim 'mithro' Ansell acd53975a2 docs: Cleanup a bunch of sphinx warnings. 
Signed-off-by: Tim 'mithro' Ansell <tansell@google.com>
 2020-06-25 19:24:22 -07:00
Tim 'mithro' Ansell 6926ce51f0 docs: Adding the start of the contents section. 
Signed-off-by: Tim 'mithro' Ansell <tansell@google.com>
 2020-06-24 16:22:23 -07:00