Intel® 400 Series Chipset On-Package Platform Controller Hub
Online Register Database
| ID | Date | Version | Classification |
|---|---|---|---|
| 615146 | 08/09/2019 | 1.2 | Public |
Host Partition Reset Causes (HPR_CAUSE0) – Offset 192c
This register logs causes of host partition resets.
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 30:14 | - | - | Reserved
|
| 13 | 0b | RO/V | Host SMBUS Host Reset With Power Cycle (HSMB_HRPC) SMBus initiated host partition reset with power cycle. |
| 12 | 0b | RO/V | Host SMBUS Host Reset Without Power Cycle (HSMB_HR) SMBus initiated host partition reset without power cycle. |
| 11 | - | - | Reserved
|
| 10 | 0b | RO/V | ME-Initiated Host Reset With Power Down (MI_HRPD) ME initiated host reset with power down. |
| 9 | 0b | RO/V | ME-Initiated Host Reset With Power Cycle (MI_HRPC) ME initiated host reset with power cycle. |
| 8 | 0b | RO/V | ME-Initiated Host Reset Without Power Cycle (MI_HR) ME initiated host reset without power cycle. |
| 7 | - | - | Reserved
|
| 6 | 0b | RO/V | Host TCO Watchdog Timer Second Expiration (TCO_WDT) Host TCO watchdog timer reached zero for the second time. |
| 5:3 | - | - | Reserved
|
| 2 | 0b | RO/V | SYS_RESET# (SYSRST_ES) Assertion of the SYS_RESET# pin after the 16 ms HW debounce. |
| 1 | 0b | RO/V | Write to CF9 (CF9_ES) This bit will be set when Host software writes a value of 6h or Eh to the CF9 register. |
| 0 | - | - | Reserved
|