Intel® Core™ Ultra Series 3 Processors CFG and MEM Registers
| ID | Date | Version | Classification |
|---|---|---|---|
| 872351 | 04/14/2026 | 001 | Public |
Interrupt Cause (INTCAUSE) – Offset 98
The Interrupt Cause Register is used to indicate the reason that an interrupt was generated using entry 0 in the MSI-X table. For interrupts generated using other MSI-X table entries or any of the IMS entries, no separate cause register exists. In the latter cases, software can identify the cause of the interrupt based on the interrupt vector or by reading the cause associated location, for example the completion record address or the WQ Occupancy register.
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 31:6 | 0h | RO | Reserved |
| 5 | 0h | RW/1C/V | Event Log (EVNTLOG) Event Log |
| 4 | 0h | RW/1C/V | Device Halt State (DHS) Device Halt State |
| 3 | 0h | RW/1C/V | Perfmon Counter Overflow (PCOFLW) Perfmon Counter Overflow |
| 2 | 0h | RW/1C/V | WQ Occupancy Below Limit (WQOBL) WQ Occupancy Below Limit |
| 1 | 0h | RW/1C/V | Command Completion (CMDCPL) Command Completion |
| 0 | 0h | RW/1C/V | SW Error (SWERR) SW Error |