Capability Parameters 1 Register
| AC64 | 64-bit addressing capability. |
| BNC | Bandwidth negotiation capability. |
| CSZ | Context size. |
| PPC | Port power control. |
| PIND | Port indicators. |
| LHRC | Light host controller reset capability. |
| LTC | Latency tolerance messaging capability. |
| NSS | No secondary SID support. |
| PAE | Parse all event data. |
| SPC | Short packet capability. |
| SEC | Stopped EDLTA capability. |
| CFC | Contiguous frame ID capability. |
| MAXPSASIZE | Maximum primary stream array size. |
| XECP | xHCI extended capabilities pointer. |