Intel® 400 Series Chipset On-Package Platform Controller Hub
Online Register Database
ACPI Control (ACTL) – Offset 1bd8
Bit Range | Default | Access | Field Name and Description |
---|---|---|---|
30:3 | - | - | Reserved
|
2:0 | 000b | RW | SCI IRQ Select (SCIS) Specifies on which IRQ the SCI will internally appear. If not using the APIC, the SCI must be routed to IRQ[9-11], and that interrupt is not sharable with the SERIRQ stream, but is shareable with other PCI interrupts. If using the APIC, the SCI can also be mapped to IRQ20-23, and can be shared with other interrupts. |