Intel® Core™ Ultra 200H and 200U Series Processors SOC I/O Registers
| ID | Date | Version | Classification |
|---|---|---|---|
| 844346 | 01/29/2025 | 001 | Public |
Base Address (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 | 0h | RW | Base Address Field (BASEADDR) Base Address Register Low Base address. |
| 20:12 | 0h | RO | Reserved Field (RSVD) This field is Reserved |
| 11:4 | 0h | RO | Size Field (SIZEINDICATOR) Size Indicator. Always returns 0. The size of this register depends on the size of the memory space. |
| 3 | 0h | RO | Prefetchable Field (PREFETCHABLE) Prefetchable: Indicates that this BAR is not prefetchable |
| 2:1 | 2h | RO | Type Field (TYPE0) If BAR_64b_EN is 0 then 00 indicates BAR lies in 32bit address range If BAR_64b_EN is 1 then 10 Indicates BAR lies in 64 bit address range |
| 0 | 0h | RO | Message Space Field (MESSAGE_SPACE) Memory Space Indicator: 0 indicates this BAR is present in the memory space. |