Intel® Core™ Ultra Series 3 Processors I/O Registers
| ID | Date | Version | Classification |
|---|---|---|---|
| 872352 | 04/14/2026 | 001 | Public |
SoundWire x Microphone Privacy Control & Status (SNDW3PVCCS) – Offset 4e010
This register controls the status reporting structure of the microphone privacy DMA data zeroing feature.
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 15:11 | 0h | RO | Reserved (Zero) (RSVD15) SW must use zeros for writes. |
| 10 | 0h | RO/V | Force Mic Disable (FMDIS) Indicates the microphone endpoint (for the selected mic audio link per DfMICPVCP.DDZLS) is statically force mic disable by trusted agent and SW / FW should hide the endpoint from being exposed to OS. |
| 9 | 0h | RO/V | Mic Disable Status (MDSTS) Indicates the live mic disable status input from GPIO (for the selected mic audio link per DfMICPVCP.DDZLS). When asserted and the microphone privacy DMA data zeroing policy is enabled, the timer will start counting and force the selected mic data to zero (after time-out). When de-asserted, it remove the DMA data zeroing immediately (including stopping the timer if it has not expired). |
| 8 | 0h | RW/1C | Mic Disable Status Changed (MDSTSCHG) Asserted when mic disable status has changed state (independent of MSTSCHGIE setting), and trigger interrupt if enabled. |
| 7:1 | 0h | RO | Reserved (Preserved) (RSVD7) SW must preserve the original value when writing. |
| 0 | 0h | RW | Mic Disable Status Changed Interrupt Enabled (MDSTSCHGIE) When set to 1, it allows MSTSCHG bit to be propagated as DMIC / SoundWire interrupt to the DSP Cores / host CPU. |