A registered peripheral model runs in the engine: the firmware talks to it over the real bus and gets device-accurate responses.
Octal bus transceiver, DIR + one part-wide OE (core/configs/devices/74hc245.yaml), 11 ns. All eight bits switch together; there is no per-bit enable.
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.
GPIO_GROUP
[object Object]
| Pin | Type | Role |
|---|---|---|
DIR | input | — |
OE | input | — |
A1 | bidirectional | — |
A2 | bidirectional | — |
A3 | bidirectional | — |
A4 | bidirectional | — |
A5 | bidirectional | — |
A6 | bidirectional | — |
A7 | bidirectional | — |
A8 | bidirectional | — |
B1 | bidirectional | — |
B2 | bidirectional | — |
B3 | bidirectional | — |
B4 | bidirectional | — |
B5 | bidirectional | — |
B6 | bidirectional | — |
B7 | bidirectional | — |
B8 | bidirectional | — |
VCC | power_in | — |
GND | power_in | — |
Modelled from Nexperia 74HC245 datasheet.