Intel® 800 Series Chipset Family Platform Controller Hub (PCH), Volume 2
ID | Date | Version | Classification |
---|---|---|---|
834576 | 10/10/2024 | 001 | Public |
Memory Base Address (MBAR_MMIO) – Offset 8610
Dummy register, mirror of physical register as MBAR. Value in this register will be different after the enumeration process.
Bit Range | Default | Access | Field Name and Description |
---|---|---|---|
63:16 | 0h | RW | Base Address (BA) Bits (63:16) correspond to memory address signals (63:16), respectively. This gives 64 KB of relocatable memory space aligned to 64 KB boundaries. |
15:4 | 0h | RO | Reserved (RSVD) Reserved. Read-Only 0, this indicates that this function is requesting an 64KB block of memory. |
3 | 0h | RO | Prefetchable Indication (PREFETCHABLE) This bit is hardwired to 0 indicating that this range should not be prefetched. |
2:1 | 2h | RO | Type Indication (MBAR_TYPE) If this field is hardwired to 00 it indicates that this range can be mapped anywhere within 32-bit address space. |
0 | 0h | RO | Resource Type Indicator (RTE) This bit is hardwired to 0 indicating that the base address field in this register maps to memory space |