tree 5c4e09f9d111cd165d871f9e3e94667799db4c5e
parent ead6c917dea268c88d44bdc63fd534ca9f6341c3
author Tim 'mithro' Ansell <me@mith.ro> 1602549806 -0700
committer Tim 'mithro' Ansell <me@mith.ro> 1602624236 -0700

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>