Intel® 400 Series Chipset On-Package Platform Controller Hub
Online Register Database
| ID | Date | Version | Classification |
|---|---|---|---|
| 615146 | 08/09/2019 | 1.2 | Public |
SLP_S0# Debug 2 (SLP_S0_DBG_2) – Offset 10bc
This register captures the state of low power events involved in SLP_S0# entry to assist with debug. The status is captured as part of C10 entry(once CPU has entered package C10).
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 30:14 | - | - | Reserved
|
| 13 | 0b | RO/V | Platform Aggregated System Latency Tolerance value is greater than the Threshold (ASLT_GT_THRES_STS) This bit when 1 indicates that the platform ASLT is greater than threashold |
| 12 | 0b | RO/V | PCH to CPU wake not pending. (PMSYNC_STATE_IDLE_STS) This bit when 1 indicates that PMSYNC requests are not active. |
| 11 | - | - | Reserved
|
| 10 | 0b | RO/V | CNVi specific wake request (CNV_VNN_REQ_STS) This bit when 1 indicates that CNV VNN Req is active. |
| 9 | - | - | Reserved
|
| 8 | 0b | RO/V | ISH specific wake request (ISH_VNN_REQ_STS) This bit when 1 indicates that ISH Vnn Req is active. |
| 7 | - | - | Reserved
|
| 6 | 0b | RO/V | PCIe Low Power Status (PCIE_LP_STS) PCIe Root Port controllers are in low power state (power gated) |
| 5 | - | - | Reserved
|
| 4 | 0b | RO/V | Gbe connection status (GBE_NO_LINK_STS) This bit when 1 indicates that the GBE interface is disconected. |
| 3:2 | - | - | Reserved
|
| 1 | 0b | RO/V | ME Power Gated Status (CSME_PG_STS) This bit when 1 indicates that all power gated domains in Intel(R) ME are turned off. |
| 0 | 0b | RO/V | High Speed IO logic power gated status (MPHY_CORE_PG_STS) This bit when 1 indicates that mphy core and data lanes are off. |