13th Generation Intel® Core™ Processors Datasheet, Volume 2 of 2
ID | Date | Version | Classification |
---|---|---|---|
767624 | 07/13/2023 | Public |
PCI Command (PCICMD_0_4_0_PCI) – Offset 4
This register provides basic control over the DTT devices ability to respond to PCI cycles.
The PCICMD Register in the DTT disables the DTT PCI compliant master accesses to main memory.
Bit Range | Default | Access | Field Name and Description |
---|---|---|---|
15:11 | 0h | RO | Reserved |
10 | 0b | RW | Interrupt Disable (INTDIS) This bit, when set, disables the device from asserting INTA#. |
9 | 0b | RO | Fast Back To Back Enable (FB2B) The DTT device does not implement this bit and it is hardwired to a 0. |
8 | 0b | RO | SERR Reporting Enable (SERRE) The DTT device does not implement this bit and it is hardwired to a 0. |
7 | 0b | RO | Address/Data Stepping (ADSTEP) The DTT device does not implement this bit and it is hardwired to a 0. |
6 | 0b | RO | Parity Error Response Enable (PERRE) This bit is hardwired to 0. The DTT Device belongs to the category of devices that does not corrupt programs or data in system memory or hard drives. It therefore ignores any parity error that it detects and continues with normal operation. |
5 | 0b | RO | Video Palette Snooping (VGASNOOP) The DTT device does not implement this bit and it is hardwired to a 0. |
4 | 0b | RO | (MWIE) This bit is hardwired to 0. |
3 | 0b | RO | Special Cycle Enable (SCE) Reserved per PCI-Express and PCI bridge spec. |
2 | 0b | RW | Bus Master Enable (BME) The DTT Device is enabled to function as a PCI-compliant bus master when this bit is set. |
1 | 0b | RW | Memory Access Enable (MAE) The DTT Device will allow access to thermal registers when this bit is set. If it is not set, access to memory mapped thermal registers is disabled. |
0 | 0b | RO | I/O Access Enable (IOAE) The DTT device does not implement this bit and it is hardwired to a 0. |