PCH Power Management Status (PCH_PM_STS2) – Offset 1824 - 1.2 - ID:615146 | Intel® 400 Series Chipset On-Package Platform Controller Hub

Intel® 400 Series Chipset On-Package Platform Controller Hub

Online Register Database

ID	Date	Version	Classification
615146	08/09/2019	1.2	Public

PCH Power Management Status (PCH_PM_STS2) – Offset 1824

This register contains misc. fields used to record events pertaining to PCH power management. Unless otherwise indicated, all RWC bits are cleared with a write of '1' by software.

Bit Range	Default	Access	Field Name and Description
30:15	-	-	Reserved
14	0b	RW/1C/V	CPU Reset Done Failure (CRD) CPU Reset Done message did not arrive from the CPU.
13	0b	RW/1C/V	ME Host Boot Prep Done Failure (ME_HBPD) ME Host Boot Preparation did not complete.
12	0b	RW/1C/V	PINSTOP Acknowledge Failure (PINSTOP_ACK) The GbE PHY did not respond to the PINSTOP message.
11	-	-	Reserved
10	0b	RW/1C/V	SMT Reset Acknowledge Failure (SMT_RST_ACK) One or more SMT controllers did not respond to the CSME bus reset warning.
9	0b	RW/1C/V	EXI State Transition Acknowledge Failure (EXI_STATE_TRANS_ACK) EXI state transition ACK did not arrive.
8	0b	RW/1C/V	SPI Common Prep Handshake Failure (SPI_HRHS) The SPI controller did not complete the host partition reset/Sx entry handshake.
7	0b	RW/1C/V	XCK Common Prep Handshake Failure (XCK_HRHS) The integrated clocking unit did not complete the host partition reset/Sx entry handshake.
6	0b	RW/1C/V	CPU S345/Reset Warn Acknowledge Failure (CPU_S345RW_ACK) The CPU did not respond to the GO_S345 or RESET_WARN message.
5	0b	RW/1C/V	CPU S1 Acknowledge Failure (CPU_S1_ACK) The CPU did not respond to the GO_S1_XXX message.
4	0b	RW/1C/V	DMI L23 Entry Failure (DMI_L23) The DMI interface did not respond to the request to entry L23.
3	0b	RW/1C/V	SMBus Host Reset Handshaking Failure (SMB_SRHS) The host SMBus controller did not complete the host partition reset handshake.
2	0b	RW/1C/V	South Port L23 Entry Failure (SP_L23) The PCH PCI Express ports did not complete the host partition reset/Sx entry handshake.
1	0b	RW/1C/V	XHCI Common Prep Handshake Failure (XHCI_HRHS) The XHCI controller did not complete the host partition reset/Sx entry handshake.
0	-	-	Reserved