12th Generation Intel® Core™ Processors Datasheet Volume 2 of 2
ID | Date | Version | Classification |
---|---|---|---|
767625 | 07/13/2023 | Public |
Device Status (STS) – Offset 6
Device Status
Bit Range | Default | Access | Field Name and Description |
---|---|---|---|
15 | 0x0 | RW/1C | Detected Parity Error (DPE) This bit is set by the Intel PCH whenever a parity error is seen on the internal interface to the XHC host controller, regardless of the setting of bit 6 or bit 8 in the Command register or any other conditions. Software clears this bit by writing a 1 to this bit location. |
14 | 0x0 | RW/1C | Signaled System Error (SSE) This bit is set by the Intel PCH whenever it signals SERR# (internally). The SERR_EN bit (bit 8 in the Command Register) must be 1 for this bit to be set. |
13 | 0x0 | RW/1C | Received Master Abort Status (RMA) This bit is set when XHC, as a master, receives a master-abort status on a memory access. This is treated as a Host Error and halts the DMA engines. Software clears this bit by writing a 1 to this bit location. |
12 | 0x0 | RW/1C | Received Target Abort (RTA) This bit is set when XHC, as a master, receives a target abort status on a memory access. This is treated as a Host Error and halts the DMA engines. Software clears this bit by writing a 1 to this bit location. |
11 | 0x0 | RW/1C | Signaled Target Abort (STA) This bit is used to indicate when the XHC function responds to a cycle with a target abort. |
10:9 | 0x1 | RO | DEVSEL# Timing Status (DEVT) This 2-bit field defines the timing for DEVSEL# assertion. Read-Only. |
8 | 0x0 | RW/1C | Master Data Parity Error Detected (MDPED) This bit is set by the Intel PCH whenever a data parity error is detected on a XHC read completion packet on the internal interface to the XHC host controller and bit 6 of the Command register is set to 1. Software clears this bit by writing a 1 to this bit location. |
7 | 0x1 | RO | Fast Back to Back Capable (FBBC) Reserved per PCI-Express spec. |
6 | 0x0 | RO | User Defined Format (UDF) Reserved |
5 | 0x0 | RO | Primary 66 MHz Capable (MC) Reserved per PCI-Express spec. |
4 | 0x1 | RO | Capabilities List (CL) Hardwired to 1 indicating that offset 34h contains a valid capabilities pointer. |
3 | 0x0 | RO/V | Interrupt Status (INTR_STS) This read-only bit reflects the state of this function's interrupt at the input of the enable/disable logic. This bit is a 1 when the interrupt is asserted. This bit will be 0 when the interrupt is deasserted. The value reported in this bit is independent of the value in the Interrupt Enable bit. |
2:0 | 0x0 | RO | Reserved (RSVD) Reserved |