Intel® 400 Series Chipset On-Package Platform Controller Hub
Online Register Database
ID | Date | Version | Classification |
---|---|---|---|
615146 | 08/09/2019 | 1.2 | Public |
PWRMBASE (BAR) – Offset 10
Base Address for MMIO Registers.
Bit Range | Default | Access | Field Name and Description |
---|---|---|---|
30:12 | 00000h | RW | BAR (BASEADDR) Software programs this register with the base address of the device's memory region |
12:4 | 00h | RO | Size Indicator (SIZEINDICATOR) Hardwired to 0 to indicate 16KB of memory space |
3 | 0b | RO | Prefetchable (PREFETCHABLE) A device can mark a range as prefetchable if there are no side effects on reads, the device returns all bytes on reads regardless of the byte enables. |
2:1 | 00b | RO | Type (TYPE) Hardwired to 0 to indicate that Base register is 32 bits wide and mapping can be done anywhere in the 32-bit Memory Space. |
0 | 0b | RO | Memory Space Indicator (MESSAGE_SPACE) Hardwired to 0 to identify a Memory BAR. |