General Status Register (GSR) – Offset 304 - 1.2 - ID:615146 | Intel® 400 Series Chipset On-Package Platform Controller Hub

Introduction
8254 Timer
Advanced Programmable Interrupt Controller (APIC)
APIC Indirect
CNVi PCI Configuration
DCI PCR
- DCI Control (ECTRL)
EMMC Additional
EMMC Memory Mapped
EMMC PCI Configuration
eMMC PCR
- Dynamic Clock Gating Control (GPPRVRW1)
Enhanced SPI (eSPI) PCI Configuration
eSPI PCR
FIA Configuration PCR
GbE Configuration
GbE Memory Mapped I/O
Generic SPI (GSPI) Additional
Generic SPI (GSPI) DMA Controller
Generic SPI (GSPI) Memory Mapped
GPIO Community 0
GPIO Community 1
GPIO Community 2
GPIO Community 3
GPIO Community 4
GSPI PCI Configuration
High Definition Audio (D31:F3) Memory Mapped I/O
High Definition Audio (D31:F3) PCI Configuration
HPET Memory Mapped
I2C Additional
I2C DMA Controller
I2C Memory Mapped
I2C PCI Congifuration
IDE Redirect PCI Configuration (D22:F2)
Integrated Clock (ICC) Configuration
- CMU_ONE_DWORD25 (cmu_one_dword25)
Intel RST for PCIe Storage (Remapping) PCI Configuration (D24:F0)
Intel RST for PCIe Storage MMIO
Intel(R) Management Engine Interface PCI Configuration
Intel(R) MEI MMIO
- DEVIDLE Control (HECI1_DEVIDLEC)
Intel(R) Trace Hub Configuration
Intel® HD Audio PCR
- Function Configuration (FNCFG)
Interrupt
Interrupt PCR
IO Trap
ISH
ISH PCH Configuration
ISH PCR
- Power Management Control (PMCTL)
Keyboard and Text (KT) Additional Configuration
- Power Management Control and Status (KT_CSXE_PMD_PMCSRBSE_PMCSR)
Keyboard and Text (KT) PCI Configuration (D22:F3)
LPC Configuration
LPC PCR
- General Control And Function Disable (GCFD)
OPI PCR
P2SB PCI Configuration
PCI Express* Port Configuration
PMC I/O Based
PMC Memory Mapped
PMC SSRAM PCI Configuration
Power Management Configuration
Processor Interface Memory
PSF1
PSF2
PSF3
PSF4
PSF5
RTC Indexed
RTC PCR
SATA ABAR
SATA AIDP
- AHCI Index Register (INDEX)
- AHCI Data Register (DATA)
SATA Configuration
SATA Initialization (SIR) Index
SATA MXPBA
- MSI-X Pending Bit Array QW 0 (MXPQW0_DW0)
SATA MXTBA
SDXC (SD Card) PCR
- Dynamic Clock Gating Control (GPPRVRW1)
SDXC Additional Memory Mapped
SDXC Memory Mapped
SDXC PCI Configuration
SMBus Configuration
SMBus I/O and Memory Mapped I/O
SMBus PCR
SMBus TCO I/O
SPI Configuration
SPI Memory Mapped
Thermal Reporting Configuration
Thermal Reporting Memory Mapped
UART Additional Memory Mapped
UART DMA Controller
UART Memory Mapped
UART PCI Configuration
xDCI MMIO Device
xDCI MMIO Global
xDCI PCI Configuration
xHCI Configuration
xHCI Memory Mapped

General Status Register (GSR) – Offset 304

Bit Range	Default	Access	Field Name and Description
31	0b	RW	Port Configuration Check Disable (PCCD) When this bit is set to '1', internal port configuration check is disabled. When this bit is '0' (reset default), internal port configuration check is enabled. When enabled, port configuration check is performed by comparing the following. A mismatch detected will prevent the GCR.CRE bit from being set to 1. - Cycle Router x1, x2 or x4 soft strap - PCIe x1, x2 or x4 capability for the lane(s) selected by GCR.PLS and the associated PCIe root-port configuration
30	0b	RW/1C	Port Configuration Check Status (PCCS) This bit is set to '1' by hardware when internal port configuration check is enabled (GSR.PCCD='0') and a mismatch is detected. The bit is cleared to '0' by software writing a '1' to this bit position. This bit may be set (due to mismatch) before PCIe port configuration is configured correctly after reset. BIOS is required to examine and clear this bit accordingly before setting the GCR.CRE bit.
29:21	-	-	Reserved
20:1	0000Fh	RO	PCIe Lanes Remap Capable (PLRC) This field is bit significant, and it corresponds to PCIe Lane [20:1]. A '1' indicates the corresponding PCIe lane is remap capable with the option to select Cycle Router functionality on this lane. Lane [1] corresponds to the first lane of the first PCIe root-port, i.e. PCIe Port 1 Lane [0], and so on. Cycle Router#1 - 0000Fh Cycle Router#2 - 000F0h Cycle Router#3 - 00F00h
0	-	-	Reserved

Configuration Access Index Register (CAIR)

General Configuration Register (GCR) Configuration Access Index Register (CAIR)