Intel® Core™ Ultra 200H and 200U Series Processors CFG and MEM Registers
| ID | Date | Version | Classification |
|---|---|---|---|
| 844345 | 01/29/2025 | 001 | Public |
ATS Capability and Control (ATS_CAP_CONTROL_HEAD) – Offset 104
ATS Capability and Control
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 31 | 0h | RW | ATS Enable (ATS_ENABLE) When set the function is enabled to cache translations |
| 30:21 | 0h | RO | Reserved |
| 20:16 | 0h | RW | ATS Smallest Translation Unit (ATS_STU) Smallest Translation Unit |
| 15:8 | 0h | RO | Reserved |
| 7 | 0h | RO | ATS RO Support (ATS_RO_SUPPORT) Relaxed Ordering support for ATS Requests |
| 6 | 0h | RO | ATS Global Invalidate Support (ATS_GLOBAL_INV_SUPPORT) Indicates support for Invalidation Requets that have Global Invalidate bit set Only valid if PASID TLP Prefix is supported |
| 5 | 1h | RO | ATS Page Aligned (ATS_PAGE_ALIG_REQ) If set indicates that the untranslated address are always aligned to 4K boundary Spec suggests setting this field |
| 4:0 | 0h | RO | ATS Invalidate Requests (ATS_INV_QUEUE_DEPTH) Number of Invalidate Requests supported before putting back pressure |