Intel® 400 Series Chipset On-Package Platform Controller Hub
Online Register Database
Interrupt Status Register (IS) – Offset 8
This register indicates which of the ports within the controller have an interrupt pending and require service.
Bit Range | Default | Access | Field Name and Description |
---|---|---|---|
30:3 | - | - | Reserved
|
2 | 0h | RW/1C/V | Interrupt Pending Status Port 2 (IPS2) This bit is only applicable to system that has Port 2 physically. |
1 | 0h | RW/1C/V | Interrupt Pending Status Port 1 (IPS1) This bit is only applicable to system that has Port 1 physically. |
0 | 0h | RW/1C/V | Interrupt Pending Status Port 0 (IPS0) This bit is only applicable to system that has Port 0 physically. |