Intel® Core™ Ultra Series 3 Processors I/O Registers
| ID | Date | Version | Classification |
|---|---|---|---|
| 872352 | 04/14/2026 | 001 | Public |
Output Gain Control Register, left channel (PDMCTRL0_OUT_GAIN_LEFT_B) – Offset 11150
The output of the FIR filter after adding the offset is multiplied by the signed binary coefficient in this register.
If the value is equal to zero or the register is left un-initialized, the final gain multiplication is omitted, and the output of the filter with DC adjustment only is presented at the parallel output.
Note: Gain values must be within 0x800010x7FFFF; if 0x80000 is written, then it will be replaced in the computation by 0x80001.
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 31:20 | 0h | RO | Reserved Bits (RSVD0) This is a Reserved Register |
| 19:0 | 0h | RW | GAIN Field (GAIN) The value written into this register is treated as signed 2s complement binary value and added to the output of the FIR filter. |