Visible to Intel only — GUID: ubo1678585772801
Ixiasoft
Visible to Intel only — GUID: ubo1678585772801
Ixiasoft
5.7.5.9. Interrupts
Condition |
Mode |
---|---|
Device‑initiated remote wakeup is detected. |
Host mode |
Session request is detected from the device. |
Host mode |
Device disconnect is detected. |
Host mode |
Host periodic TX FIFO buffer is empty (can be further programmed to indicate half‑empty). |
Host mode |
Host channels interrupt received. |
Host mode |
Incomplete periodic transfer is pending at the end of the microframe. |
Host mode |
Host port status interrupt received. |
Host mode |
External host initiated resume is detected. |
Device mode |
Reset is detected when in suspend or normal mode. |
Device mode |
USB suspend mode is detected. |
Device mode |
Data fetch is suspended due to TX FIFO buffer full or request queue full. |
Device mode |
At least one isochronous OUT endpoint is pending at the end of the microframe. |
Device mode |
At least one isochronous IN endpoint is pending at the end of the microframe. |
Device mode |
At least one IN or OUT endpoint interrupt is pending at the end of the microframe. |
Device mode |
The end of the periodic frame is reached. |
Device mode |
Failure to write an isochronous OUT packet to the RX FIFO buffer. The RX FIFO buffer does not have enough space to accommodate the maximum packet size for the isochronous OUT endpoint. |
Device mode |
Enumeration has completed. |
Device mode |
Connector ID change. |
Common modes |
Mode mismatch. Software accesses registers belonging to an incorrect mode. |
Common modes |
Nonperiodic TX FIFO buffer is empty. |
Common modes |
RX FIFO buffer is not empty. |
Common modes |
Start of microframe. |
Common modes |
Device connection debounce is complete in host mode. |
OTG interrupts |
A‑Device timeout while waiting for B‑Device connection. |
OTG interrupts |
Host negotiation is complete. |
OTG interrupts |
Session request is complete. |
OTG interrupts |
Session end is detected in device mode. |
OTG interrupts |