Intel® 400 Series Chipset On-Package Platform Controller Hub
Online Register Database
ID | Date | Version | Classification |
---|---|---|---|
615146 | 08/09/2019 | 1.2 | Public |
ACPI Base Address (ACPIBA) – Offset 27b4
Offset 27B4h: ACPIBA ACPI Base Address
Bit Range | Default | Access | Field Name and Description |
---|---|---|---|
30:24 | - | - | Reserved
|
23:18 | 000000b | RW/L | Address[7:2] Mask (ADDR72MASK) A 1 in any bit position indicates that any value in the corresponding address bit in a received cycle will be treated as a match. The corresponding bit in the Address field, below, is ignored. The mask is only provided for the lower 6 bits of the DWord address, allowing for decoding blocks up to 256 bytes in size. |
17:16 | - | - | Reserved
|
15:2 | 0000h | RW/L | Address[15:2] (ADDR) DWord-aligned address. |
1 | - | - | Reserved
|
0 | 0b | RW/L | ACPI Base Address Decode Enable (ACPIBADE) When this bit is set to 1, then the range specified in this register is enabled for decoding to the destination ID specified in ACPIBDID register. |