EECP=0, ASP=0, IST=0
Host Controller Capability Parameters Register
| ADC | 64-bit addressing capability. |
| PFL | Programmable Frame List flag |
| ASP | Asynchronous Schedule Park capability 0 (0): Park not supported. 1 (1): Park supported. |
| RESERVED | Reserved |
| IST | Isochronous Scheduling Threshold 0 (0): The value of the least significant 3 bits indicates the number of microframes a host controller can hold a set of isochronous data structures (one or more) before flushing the state |
| EECP | EHCI Extended Capabilities Pointer 0 (0): No extended capabilities are implemented |
| RESERVED | Reserved |