44.4.1.1 USB OTG Interrupt Status Register
| Name: | UOTGIR |
| Offset: | 0x4040 |
| Reset: | 0x0 |
| Property: | - |
| Bit | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | |
| Access | |||||||||
| Reset |
| Bit | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | |
| Access | |||||||||
| Reset |
| Bit | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | |
| Access | |||||||||
| Reset |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| IDIF | T1MSECIF | LSTATEIF | ACTVIF | SESVDIF | SESENDIF | VBUSVDIF | |||
| Access | R/K | R/K | R/K | R/K | R/K | R/K | R/K | ||
| Reset | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Bit 7 – IDIF ID State Change Indicator bit
Write a ‘1’ to this bit to clear the interrupt.
| Value | Description |
|---|---|
| 1 | Change in ID state detected |
| 0 | No change in ID state detected |
Bit 6 – T1MSECIF 1 Millisecond Timer bit
Write a ‘1’ to this bit to clear the interrupt.
| Value | Description |
|---|---|
| 1 | 1 millisecond timer has expired |
| 0 | 1 millisecond timer has not expired |
Bit 5 – LSTATEIF Line State Stable Indicator bit
Write a ‘1’ to this bit to clear the interrupt.
| Value | Description |
|---|---|
| 1 | USB line state is stable for 1 ms, but different from last time |
| 0 | USB line state is not stable for 1 ms |
Bit 4 – ACTVIF Bus Activity Indicator bit
Write a ‘1’ to this bit to clear the interrupt.
| Value | Description |
|---|---|
| 1 |
Activity on the D+, D-, ID or VBUS pins has caused the device to wake-up |
| 0 | Activity is not detected |
Bit 3 – SESVDIF Session Valid Change Indicator bit
Write a ‘1’ to this bit to clear the interrupt.
| Value | Description |
|---|---|
| 1 |
VBUS voltage has dropped below the session end level |
| 0 |
VBUS voltage has not dropped below the session end level |
Bit 2 – SESENDIF B-Device VBUS Change Indicator bit
Write a ‘1’ to this bit to clear the interrupt.
| Value | Description |
|---|---|
| 1 | A change on the session end input was detected |
| 0 | No change on the session end input was detected |
Bit 0 – VBUSVDIF A-Device VBUS Change Indicator bit
Write a ‘1’ to this bit to clear the interrupt.
| Value | Description |
|---|---|
| 1 | A change on the session end input was detected |
| 0 | No change on the session end input was detected |