12th Generation Intel® Core™ Processors Datasheet Volume 2 of 2
| ID | Date | Version | Classification |
|---|---|---|---|
| 767625 | 07/13/2023 | Public |
ACS Capability (ACSCAPR) – Offset 224
ACS Capability
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 15:7 | 0x0 | RO | Reserved (RSVD_M) Reserved. |
| 6 | 0x0 | RO | ACS Direct Translated P2P (T) ACS Direct Translated P2P is not supported. |
| 5 | 0x0 | RO | ACS P2P Egress Control (E) ACS P2P Egress Control is not supported. |
| 4 | 0x1 | RW/O | ACS Upstream Forwarding (U) ACS Upstream Forwarding. |
| 3 | 0x1 | RW/O | ACS P2P Completion Redirect (C) Required for all Functions that support ACS P2P Request Redirect - must be hardwired to 0b otherwise. If 1b, indicates that the component implements ACS P2P Completion Redirect. |
| 2 | 0x1 | RW/O | ACS P2P Request Redirect (R) Required for Root Ports that support peer-to-peer traffic with other Root Ports - required for Switch Downstream Ports - required for multi-function device Functions that support peer-to-peer traffic with other Functions - must be hardwired to 0b otherwise. If 1b, indicates that the component implements ACS P2P Request Redirect. |
| 1 | 0x1 | RW/O | ACS Translation Blocking (B) Required for Root Ports and |
| 0 | 0x1 | RW/O | ACS Source Validation (V) Required for Root Ports and Switch Downstream Ports - must be hardwired to 0b otherwise. |