Intel® Core™ Ultra Processors for H-series and U-series Platforms SOC I/O Registers
| ID | Date | Version | Classification |
|---|---|---|---|
| 795260 | 12/14/2023 | 001 | Public |
Master Message Control (MMC) – Offset 3334
Master Message Control Register
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 15:1 | 0h | RO | Reserved (RSVD) Reserved |
| 0 | 0h | RW/V | Master Message Enable (MSTRMSG_EN) When set, allows ITSS to release any pending/in progress IOAPIC MWr, HPET MWr, VLW_EVT or the ERR Messages to the IOSF SB. When cleared, ITSS prevents these messages from being issued to the IOSF SB. |