Intel® 400 Series Chipset On-Package Platform Controller Hub
Online Register Database
ID | Date | Version | Classification |
---|---|---|---|
615146 | 08/09/2019 | 1.2 | Public |
MSI Message Control, Next Pointer And Capability ID (KT_HOST_MSIMC_MSINP_MSICID) – Offset 40
This register contains the MSI message control, next pointer And capability ID values.
Bit Range | Default | Access | Field Name and Description |
---|---|---|---|
30:25 | - | - | Reserved
|
24 | 0b | RO | Per Vector Masking Capable (PVMC) Not implemented. Hardwired to 0 to indicate the function does NOT support |
23 | 1b | RO | 64 Bit Address Capable (XAC) Hardwired to 1 to indicate the function is capable of |
22:20 | 000b | RW | Multiple Message Enable (MMEN) Encoded number of interrupt vectors allocated by SW. |
19:17 | 000b | RO | Multiple Message Capable (MMC) Encoded number of interrupt vectors requested by a device. |
16 | 0b | RW | MSI Enable (MSIE) If set, MSI interrupt delivery is enabled whereas pin-based interrupt delivery SHALL be disabled. |
15:8 | 50h | RO | Next Item Pointer (NP) Indicates the pointer for the next entry in the capabilities list. |
7:0 | 05h | RO | Capability ID (CID) Hardwired to 05h to indicate the linked list item as the MSI Capability registers |