| `top_refgen` in :lib:`sky130_fd_io` | |
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
| The REFGEN block (s8iom0s8_top_refgen) is used to provide the input trip point (vinref) for the differential input buffer in SIO and also the output buffer regulated output level (voutref). | |
| Module diagram | |
| .. image:: sky130_fd_io_top_refgen.module.png |