Intel® 800 Series Chipset Family Platform Controller Hub (PCH), Volume 2
ID | Date | Version | Classification |
---|---|---|---|
834576 | 10/10/2024 | 001 | Public |
DSP Subsystem Lower Base Address (DSPLBA) – Offset 20
This BAR creates a selected size of memory space to signify the base address (lower 32 bits) of the DSP subsystem memory-mapped configuration registers, depending on implementation.Note:This BAR will only map to the DSP subsystem memory mapped configuration registers if PPCTL.GPROCEN = 1. By default, this BAR will map to the Intel HD Audio memory mapped configuration registers as PPCTL.GPROCEN = 0, so that it is compliant with some implementation of legacy Intel HD Audio driver software. SemiColon No SemiColon DSPMPC0
Bit Range | Default | Access | Field Name and Description |
---|---|---|---|
31:21 | 0h | RW | Lower Base Address (LBA) Base address for the DSP subsystem memory mapped configuration registers. |
20:4 | 0h | RO | Reserved (RSVD5) This is a Reserved Register |
3 | 0h | RO | Prefetchable (PREF) Indicates that this BAR is NOT pre-fetchable. |
2:1 | 2h | RO | Address Range (ADDRNG) Indicates that this BAR can be located anywhere in 64-bit address space. |
0 | 0h | RO | Space Type (SPTYP) Indicates that this BAR is located in memory space. |