Intel® 400 Series Chipset On-Package Platform Controller Hub
Online Register Database
ID | Date | Version | Classification |
---|---|---|---|
615146 | 08/09/2019 | 1.2 | Public |
Command (HECI1_CMD) – Offset 4
Command
Bit Range | Default | Access | Field Name and Description |
---|---|---|---|
14:11 | - | - | Reserved
|
10 | 0b | RW | Interrupt Disable (ID) Disables this |
9 | 0b | RO | Fast Back-to-Back Enable (FBE) Not implemented, hardwired to 0. |
8 | 0b | RO | SERR# Enable (SEE) Not implemented, hardwired to 0. |
7 | 0b | RO | Wait Cycle Enable (WCC) Not implemented, hardwired to 0. |
6 | 0b | RO | Parity Error Response Enable (PEE) Not implemented, hardwired to 0. |
5 | 0b | RO | VGA Palette Snooping Enable (VAG) Not implemented, hardwired to 0. |
4 | 0b | RO | Memory Write And Invalidate Enable (MWIE) Not implemented, hardwired to 0. |
3 | 0b | RO | Special Cycle Enable (SCE) Not implemented, hardwired to 0. |
2 | 0b | RW | Bus Master Enable (BME) Controls the HECI host controller's ability to act as a system memory master for data transfers. When this bit is cleared, HECI bus master activity stops and any active DMA engines return to an idle condition. |
1 | 0b | RW | Memory Space Enable (MSE) Controls access to the HECI host controllers memory mapped register space. |
0 | 0b | RO | I/O Space Enable (IOSE) Not implemented, hardwired to 0. |