Intel® 400 Series Chipset On-Package Platform Controller Hub
Online Register Database
ID | Date | Version | Classification |
---|---|---|---|
615146 | 08/09/2019 | 1.2 | Public |
Device Command (CMD) – Offset 4
Device Command.
Bit Range | Default | Access | Field Name and Description |
---|---|---|---|
14:10 | - | - | Reserved
|
9 | 0b | RO | Fast Back to Back Enable (FBE) Reserved as 0 per PCI-Express spec. |
8 | 0b | RW | SERR# Enable (SEE) The LPC bridge generates SERR# if this bit is set. |
7 | 0b | RO | Wait Cycle Control (WCC) Reserved as 0 per PCI-Express spec. |
6 | 0b | RW | Parity Error Response Enable (PERE) When this bit is set to 1, it enables the LPC bridge to response to parity errors detected on backbone interface. |
5 | 0b | RO | VGA Palette Snoop (VGA_PSE) Reserved as 0 per PCI-Express spec. |
4 | 0b | RO | Memory Write and Invalidate Enable (MWIE) Reserved as 0 per PCI-Express spec. |
3 | 0b | RO | Special Cycle Enable (SCE) Reserved as 0 per PCI-Express spec. |
2 | 1b | RO | Bus Master Enable (BME) Bus Masters cannot be disabled. |
1 | 1b | RO | Memory Space Enable (MSE) Memory space cannot be disabled on LPC. |
0 | 1b | RO | I/O Space Enable (IOSE) I/O space cannot be disabled on LPC. |