13th Generation Intel® Core™ Processors Datasheet, Volume 2 of 2
ID | Date | Version | Classification |
---|---|---|---|
767624 | 07/13/2023 | Public |
Device Command (CMD) – Offset 4
Device Command
Bit Range | Default | Access | Field Name and Description |
---|---|---|---|
15:10 | 0h | RO | Reserved |
9 | 0b | RO | Fast Back to Back Enable (FBE) Reserved per PCI-Express spec. |
8 | 0b | RW | SERR# Enable (SEE) When set, enables the root port to generate an SERR# message when PSTS.SSE is set. |
7 | 0b | RO | Wait Cycle Control (WCC) Reserved per PCI-Express spec. |
6 | 0b | RW | Parity Error Response Enable (PERE) Indicates that the device is capable of reporting parity errors as a master on the backbone. |
5 | 0b | RO | VGA Palette Snoop (VGA_PSE) Reserved per PCI-Express spec. |
4 | 0b | RO | Memory Write and Invalidate Enable (MWIE) Reserved per PCI-Express spec. |
3 | 0b | RO | Special Cycle Enable (SCE) Reserved per PCI-Express and PCI bridge spec. |
2 | 1b | RO | Bus Master Enable (BME) When set, allows the root port to forward Memory and I/O Read/Write cycles onto the backbone from a PCI-Express device. |
1 | 1b | RO | Memory Space Enable (MSE) When set, memory cycles within the range specified by the memory base and limit registers can be forwarded to the PCI-Express device. When cleared, these memory cycles are master aborted on the backbone. |
0 | 0b | RO | I/O Space Enable (IOSE) When set, I/O cycles within the range specified by the I/O base and limit registers can be forwarded to the PCI-Express device. When cleared, these cycles are master aborted on the backbone.. |