A registered peripheral model runs in the engine: the firmware talks to it over the real bus and gets device-accurate responses.
Simulated device model
Built from the datasheet. Implemented from the part’s register documentation and exercised by automated tests. Nothing physical was ever placed next to it.
SPI
| Pin | Type | Role |
|---|---|---|
VCC | power_in | — |
GND | power_in | — |
CI | input | spi_sck |
DI | input | spi_mosi |
CS | input | spi_cs |
CO | output | — |
DO | output | — |
Modelled from APA102 addressable LED datasheet.