OTG core LPM configuration register
| LPMEN | LPM support enable |
| LPMACK | LPM token acknowledge enable |
| BESL | Best effort service latency |
| REMWAKE | bRemoteWake value |
| L1SSEN | L1 Shallow Sleep enable |
| BESLTHRS | BESL threshold |
| L1DSEN | L1 deep sleep enable |
| LPMRST | LPM response |
| SLPSTS | Port sleep status |
| L1RSMOK | Sleep State Resume OK |
| LPMCHIDX | LPM Channel Index |
| LPMRCNT | LPM retry count |
| SNDLPM | Send LPM transaction |
| LPMRCNTSTS | LPM retry count status |
| ENBESL | Enable best effort service latency |