Intel® Core™ Ultra 200H and 200U Series Processors CFG and MEM Registers
| ID | Date | Version | Classification |
|---|---|---|---|
| 844345 | 01/29/2025 | 001 | Public |
PCIe Device Capability2 (DEVCAPREG2) – Offset 64
PCIE Device Capability
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 31:24 | 0h | RO | Reserved |
| 23:22 | 0h | RO | Max End to End TLP Prefix (MAX_EE_TLP_PREFIXES) Max End to End TLP Prefixes |
| 21 | 0h | RO | End to End TLP Prefix Supported (EE_TLP_PREFIX_SUPPORT) End to End TLP Prefixes Support |
| 20 | 0h | RO | Extended Format Support (EXTD_FMT_SUPPORT) Extended Format Support |
| 19:18 | 0h | RO | OBFF Support (OBFF_SUPPORT) PCI OBFF Support |
| 17:14 | 0h | RO | Reserved |
| 13:12 | 0h | RO | TPH Completer Supported (TPH_CPL_SUPPORT) TPH Completer Support |
| 11 | 0h | RO | Latency Tolerance Reporting Support (LTR_SUPPORT) A value of 1 indicates support for the optional Latency Tolerance Reporting mechanism. |
| 10 | 0h | RO | No RO Enable (NRO_EN_PRPR_PASS) No Ro based PR-PR Passing |
| 9 | 0h | RO | CAS CPL 128 Support (CAS_CPL_SUPPORT_128) Bridge does not support Atomic Operations and thus tied to zero |
| 8 | 0h | RO | CAS CPL 64 Support (ATM_OP_CPL_SUPPORT_64) CAS64 Completion Support |
| 7 | 0h | RO | CAS CPL 32 Support (ATM_OP_CPL_SUPPORT_32) CAS32 Completion Support |
| 6 | 0h | RO | Atomic Operation Routing Support (ATOR_SUPPORT) Atomic Operation Routing Support |
| 5 | 0h | RO | PCIE ARI Forwarding Support (ARI_FWD_SUPPORT) ARI Forwarding Support |
| 4 | 0h | RO | Completion Timeout Disable Support (CPL_TO_DIS_SUPPORT) Completion Timeout Disable Support |
| 3:0 | 0h | RO | Completion Timeout Range Support (CPL_TO_RNG_SUPPORT) Completion Timeout Ranges Support |