27.3.4 Events
The USB peripheral can generate several events. These are available to the event system, allowing latency-free signaling to other peripherals or performance analysis of USB operation.
| Generator Name | Description | Event Type | Generating Clock Domain | Length of Event | |
|---|---|---|---|---|---|
| Peripheral | Event | ||||
| USB | SETUP | SETUP received | Pulse | CLK_PER | One CLK_PER period |
| SOF | SOF token received | ||||
| CRC | CRC error | ||||
| UNFOVF | USB under- or overflow | ||||
| RX | Data byte received | ||||
| TX | Data byte transmitted | ||||
Refer to the Event System (EVSYS) section for more details about event types and Event System configuration.