13th Generation Intel® Core™ Processors Datasheet, Volume 2 of 2
ID | Date | Version | Classification |
---|---|---|---|
767624 | 07/13/2023 | Public |
PCI Command (PCICMD_0_2_0_PCI) – Offset 4
This 16-bit register provides basic control over the IGD's ability to respond to PCI cycles. The PCICMD Register in the IGD disables the IGD PCI compliant master accesses to main memory.
Bit Range | Default | Access | Field Name and Description |
---|---|---|---|
15:11 | 0h | RO | Reserved |
10 | 0b | RW/V | Interrupt Disable (INTDIS) This bit disables the device from asserting INTx#. 0: Enable the assertion of this device's INTx# signal. 1: Disable the assertion of this device's INTx# signal. DO_INTx messages will not be sent to DMI. |
9 | 0b | RO | Fast Back To Back Enable (FB2B) Not Implemented. Hardwired to 0. |
8 | 0b | RO | SERR Reporting Enable (SEN) Not Implemented. Hardwired to 0. |
7 | 0b | RO | Wait Cycle Control (WCC) Not Implemented. Hardwired to 0. |
6 | 0b | RO | Parity Error Response Enable (PER) Not Implemented. |
5 | 0b | RO | Video Palette Snooping (VPS) This bit is hardwired to 0 to disable snooping. |
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 | 0b | RW/V | Bus Master Enable (BME) 0: Disable IGD bus mastering. |
1 | 0b | RW/V | Memory Access Enable (MAE) This bit controls the IGD's response to memory space accesses. |
0 | 0b | RW/V/L | I/O Access Enable (IOAE) This bit controls the IGD's response to I/O space accesses. |