12th Generation Intel® Core™ Processors Datasheet Volume 2 of 2
Base Address Register (BAR) – Offset 10
Base Address Register low [31:2] type[2:1] in 32bit or 64bit addr range and memory space indicator [0]
Bit Range | Default | Access | Field Name and Description |
---|---|---|---|
31:21 | 0x0 | RW | Base Address (BASEADDR) Base Address Register Low Base address of the OCP fabric memory space. Taken from Strap values as ones |
20:12 | 0x0 | RO | Reserved (RSVD) Reserved |
11:4 | 0x0 | RO | Size Indicator (SIZEINDICATOR) Size Indicator RO Always returns 0 The size of this register depends on the size of the memory space |
3 | 0x0 | RO | Prefetchable Memory (PREFETCHABLE) 0: BAR memory is not prefetchable |
2:1 | 0x2 | RO | Memory Type (TYPE0) If BAR_64b_EN is 0 then 00b indicates BAR lies in 32 bit address range. |
0 | 0x0 | RO | Message Space (MESSAGE_SPACE) Memory Space Indicator: 0 indicates this BAR is present in the memory space. |