Intel® Core™ Ultra Series 3 Processors I/O Registers
| ID | Date | Version | Classification |
|---|---|---|---|
| 872352 | 04/14/2026 | 001 | Public |
Microphone HiQ Output Control and Status Register (OUTCONTROL0) – Offset 10100
This register configures the behavior of the output section of the microphone interface for Hi-Quality (primary) interface
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 31:28 | 0h | RO | Reserved Bits (RSVD0) This is a Reserved Register |
| 27 | 0h | RW | Threshold Interrupt Enable (TIE) When set, this bit allows to assert the interrupt request to DSPs when the FIFO contains data above the threshold |
| 26 | 0h | RW | Start Input Packer (SIP) When cleared, this bit will immediately stop the input packer. |
| 25 | 0h | RW/1C/V | FIFO Initialize (FINIT) The software will set this bit to immediately clear FIFO pointers. |
| 24 | 0h | RW/1C/V | Input Format Change Indicator (FCI) The software will set this bit when the format change is requested on the fly. |
| 23:20 | 4h | RW/1C/V | Burst FIFO Threshold (BFTH) These bits set the threshold above which the Asynchronous FIFO will request a DMA transaction (DRQ) in units of samples. |
| 19:18 | 0h | RW/L | HiQ Output Format (OF) 0: 16-bit sampling, two samples are packed in 32-bit word (left sample in LSB) |
| 17:15 | 0h | RW | IPM Mode (IPM) This field decides the packer mode, depending on the number of channels configured for the PDM DMIC IP. |
| 14:13 | 0h | RW | IPM SOURCE 1 (IPM_SOURCE_1) Defines the source decimator for 1st stereo/mono data placeholder. If the number of sources for IPM is lower this is don't care. |
| 12:11 | 0h | RW | IPM SOURCE 2 (IPM_SOURCE_2) Defines the source decimator for 2nd stereo/mono data placeholder. If the number of sources for IPM is lower this is don't care. |
| 10:9 | 0h | RW | IPM SOURCE 3 (IPM_SOURCE_3) Defines the source decimator for 3rd stereo/mono data placeholder. If the number of sources for IPM is lower this is don't care. |
| 8:7 | 0h | RW | IPM SOURCE 4 (IPM_SOURCE_4) Defines the source decimator for 4th stereo/mono data placeholder. If the number of sources for IPM is lower this is don't care. |
| 6 | 0h | RW | IPM Source Mode (IPM_SOURCE_MODE) Defines the mode of operation for all source decimator. The number of channel of microphone handled by packer can be derived from (IPM * (IPM_SOURCE_MODE+1)). |
| 5:0 | 0h | RW | FIFO Trigger Threshold (TH) FIFO Trigger Threshold for Wake/Frame ready in sample units. |