13th Generation Intel® Core™ Processors Datasheet, Volume 2 of 2
ID | Date | Version | Classification |
---|---|---|---|
767624 | 07/13/2023 | Public |
PCI Status (PCISTS2_0_2_0_PCI) – Offset 6
PCISTS is a 16-bit status register that reports the occurrence of a PCI compliant master abort and PCI compliant target abort. PCISTS also indicates the DEVSEL# timing that has been set by the IGD.
Bit Range | Default | Access | Field Name and Description |
---|---|---|---|
15 | 0b | RO | Detected Parity Error (DPE) Since the IGD does not detect parity, this bit is always hardwired to 0. |
14 | 0b | RO | Signaled System Error (SSE) The IGD never asserts SERR#, therefore this bit is hardwired to 0. |
13 | 0b | RO | Received Master Abort Status (RMAS) The IGD never gets a Master Abort, therefore this bit is hardwired to 0. |
12 | 0b | RO | Received Target Abort Status (RTAS) The IGD never gets a Target Abort, therefore this bit is hardwired to 0. |
11 | 0b | RO | Signaled Target Abort Status (STAS) Hardwired to 0. The IGD does not use target abort semantics. |
10:9 | 00b | RO | DEVSEL# Timing Status (DEVT) Reserved per PCI-Express spec |
8 | 0b | RO | Master Data Parity Error Detected (DPD) Since Parity Error Response is hardwired to disabled, and the IGD does not do any parity detection, this bit is hardwired to 0. |
7 | 0b | RO | Fast Back to Back Capable (FB2B) Reserved per PCI-Express spec. |
6 | 0b | RO | User Defined Format (UDF) Reserved per PCI-Express spec. |
5 | 0b | RO | Primary 66 MHz Capable (C66) Reserved per PCI-Express spec. |
4 | 1b | RO | Capabilities List (CLIST) This bit is hardwired to 1 to indicate that the register at 34h provides an offset into the function's PCI Configuration Space containing a pointer to the location of the first item in the list. |
3 | 0b | RO/V | Interrupt Status (INTSTS) This bit reflects the state of the interrupt in the device. Only when the Interrupt Disable bit in the command register is a 0 and this Interrupt Status bit is a 1, will the devices INTx# signal be asserted. |
2:0 | 0h | RO | Reserved |