Intel® Core™ Ultra 200H and 200U Series Processors CFG and MEM Registers

ID Date Version Classification
844345 01/29/2025 001 Public
Document Table of Contents
D0:F0 Host Bridge and DRAM Controller - MCHBAR Memory Controller (part 1) In-Band ECC Activate (IBECC_ACTIVATE) IBECC Protected Address Range (IBECC_PROTECT_ADDR_RANGE_0) IBECC Protected Address Range (IBECC_PROTECT_ADDR_RANGE_1) IBECC Protected Address Range (IBECC_PROTECT_ADDR_RANGE_2) IBECC Protected Address Range (IBECC_PROTECT_ADDR_RANGE_3) IBECC Protected Address Range (IBECC_PROTECT_ADDR_RANGE_4) IBECC Protected Address Range (IBECC_PROTECT_ADDR_RANGE_5) IBECC Protected Address Range (IBECC_PROTECT_ADDR_RANGE_6) IBECC Protected Address Range (IBECC_PROTECT_ADDR_RANGE_7) ECC Protected VC0 Read Data Request Count (ECC_VC0_RD_REQCOUNT) ECC Protected VC1 Read Data Request Count (ECC_VC1_RD_REQCOUNT) ECC Protected VC0 Write Data Request Count (ECC_VC0_WR_REQCOUNT) ECC Protected VC1 Write Data Request Count (ECC_VC1_WR_REQCOUNT) Unprotected VC0 Read Request Count (NOECC_VC0_RD_REQCOUNT) Unprotected VC1 Read Request Count (NOECC_VC1_RD_REQCOUNT) Unprotected VC0 Write Request Count (NOECC_VC0_WR_REQCOUNT) Unprotected VC1 Write Request Count (NOECC_VC1_WR_REQCOUNT) ECC Error Log (ECC_ERROR_LOG) Parity Error Log (PARITY_ERR_LOG) ECC Injection Address Mask (ECC_INJ_ADDR_MASK) ECC Error Injection Address Base (ECC_INJ_ADDR_BASE) Parity Error Injection (PARITY_ERR_INJ) IBECC ECC Error Injection Control (ECC_INJ_CONTROL) Request Counter (ECC_VC0_SYND_RD_REQCOUNT) Request Counter (ECC_VC1_SYND_RD_REQCOUNT) Request Counter (ECC_VC0_SYND_WR_REQCOUNT) Request Counter (ECC_VC1_SYND_WR_REQCOUNT) ECC Data Storage Address (ECC_STORAGE_ADDR_RANGE_0) ECC Data Storage Address (ECC_STORAGE_ADDR_RANGE_1) ECC Data Storage Address (ECC_STORAGE_ADDR_RANGE_2) ECC Data Storage Address (ECC_STORAGE_ADDR_RANGE_3) ECC Data Storage Address (ECC_STORAGE_ADDR_RANGE_4) ECC Data Storage Address (ECC_STORAGE_ADDR_RANGE_5) ECC Data Storage Address (ECC_STORAGE_ADDR_RANGE_6) ECC Data Storage Address (ECC_STORAGE_ADDR_RANGE_7) ECC Error Counter (ECC_ERR_COUNT) IBECC Memory Initialization Control (IBECC_MEMORY_INIT_CONTROL)
D0:F0 Host Bridge and DRAM Controller - VTDPVC0BAR Version Register (VER_REG_0_0_0_VTDBAR) Capability Register (CAP_REG_0_0_0_VTDBAR) Extended Capability Register (ECAP_REG_0_0_0_VTDBAR) Global Command Register (GCMD_REG_0_0_0_VTDBAR) General Status Register (GSTS_REG_0_0_0_VTDBAR) Root Table Address Register (RTADDR_REG_0_0_0_VTDBAR) Context Command Register (CCMD_REG_0_0_0_VTDBAR) Fault Status Register (FSTS_REG_0_0_0_VTDBAR) Fault Event Control Register (FECTL_REG_0_0_0_VTDBAR) Fault Event Data Register (FEDATA_REG_0_0_0_VTDBAR) Fault Event Address Register (FEADDR_REG_0_0_0_VTDBAR) Fault Event Upper Address Register (FEUADDR_REG_0_0_0_VTDBAR) Advanced Fault Log Register (AFLOG_REG_0_0_0_VTDBAR) Protected Memory Enable Register (PMEN_REG_0_0_0_VTDBAR) Protected Low Memory Base Register (PLMBASE_REG_0_0_0_VTDBAR) Protected Low-Memory Limit Register (PLMLIMIT_REG_0_0_0_VTDBAR) Protected High-Memory Base Register (PHMBASE_REG_0_0_0_VTDBAR) Protected High-Memory Limit Register (PHMLIMIT_REG_0_0_0_VTDBAR) Invalidation Queue Head Register (IQH_REG_0_0_0_VTDBAR) Invalidation Queue Tail Register (IQT_REG_0_0_0_VTDBAR) Invalidation Queue Address Register (IQA_REG_0_0_0_VTDBAR) Invalidation Completion Status Register (ICS_REG_0_0_0_VTDBAR) Invalidation Event Control Register (IECTL_REG_0_0_0_VTDBAR) Invalidation Event Data Register (IEDATA_REG_0_0_0_VTDBAR) Invalidation Event Address Register (IEADDR_REG_0_0_0_VTDBAR) Invalidation Event Upper Address Register (IEUADDR_REG_0_0_0_VTDBAR) IQ Error Info register (IQERCD_REG_0_0_0_VTDBAR) Interrupt Remapping Table Address Register (IRTA_REG_0_0_0_VTDBAR) Page Request Queue Head Register (PQH_REG_0_0_0_VTDBAR) Page Request Queue Tail Register (PQT_REG_0_0_0_VTDBAR) Page Request Queue Address Register (PQA_REG_0_0_0_VTDBAR) Page Request Status Register (PRS_REG_0_0_0_VTDBAR) Page Request Event Control Register (PECTL_REG_0_0_0_VTDBAR) Page Request Event Data Register (PEDATA_REG_0_0_0_VTDBAR) Page Request Event Address Register (PEADDR_REG_0_0_0_VTDBAR) Page Request Event Upper Address Register (PEUADDR_REG_0_0_0_VTDBAR) MTRR Capability Register (MTRRCAP_0_0_0_VTDBAR) MTRR Default Type Register (MTRRDEFAULT_0_0_0_VTDBAR) Fixed-Range MTRR Format 64K-00000 (MTRR_FIX64K_00000_REG_0_0_0_VTDBAR) Fixed-Range MTRR Format 16K-80000 (MTRR_FIX16K_80000_REG_0_0_0_VTDBAR) Fixed-Range MTRR Format 16K-A0000 (MTRR_FIX16K_A0000_REG_0_0_0_VTDBAR) Fixed-Range MTRR Format 4K-C0000 (MTRR_FIX4K_C0000_REG_0_0_0_VTDBAR) Fixed-Range MTRR Format 4K-C8000 (MTRR_FIX4K_C8000_REG_0_0_0_VTDBAR) Fixed-Range MTRR Format 4K-D0000 (MTRR_FIX4K_D0000_REG_0_0_0_VTDBAR) Fixed-Range MTRR Format 4K-D8000 (MTRR_FIX4K_D8000_REG_0_0_0_VTDBAR) Fixed-Range MTRR Format 4K-E0000 (MTRR_FIX4K_E0000_REG_0_0_0_VTDBAR) Fixed-Range MTRR Format 4K-E8000 (MTRR_FIX4K_E8000_REG_0_0_0_VTDBAR) Fixed-Range MTRR Format 4K-F0000 (MTRR_FIX4K_F0000_REG_0_0_0_VTDBAR) Fixed-Range MTRR Format 4K-F8000 (MTRR_FIX4K_F8000_REG_0_0_0_VTDBAR) Variable-Range MTRR Format Physical Base 0 (MTRR_PHYSBASE0_REG_0_0_0_VTDBAR) Variable-Range MTRR Format Physical Mask 0 (MTRR_PHYSMASK0_REG_0_0_0_VTDBAR) Variable-Range MTRR Format Physical Base 1 (MTRR_PHYSBASE1_REG_0_0_0_VTDBAR) Variable-Range MTRR Format Physical Mask 1 (MTRR_PHYSMASK1_REG_0_0_0_VTDBAR) Variable-Range MTRR Format Physical Base 2 (MTRR_PHYSBASE2_REG_0_0_0_VTDBAR) Variable-Range MTRR Format Physical Mask 2 (MTRR_PHYSMASK2_REG_0_0_0_VTDBAR) Variable-Range MTRR Format Physical Base 3 (MTRR_PHYSBASE3_REG_0_0_0_VTDBAR) Variable-Range MTRR Format Physical Mask 3 (MTRR_PHYSMASK3_REG_0_0_0_VTDBAR) Variable-Range MTRR Format Physical Base 4 (MTRR_PHYSBASE4_REG_0_0_0_VTDBAR) Variable-Range MTRR Format Physical Mask 4 (MTRR_PHYSMASK4_REG_0_0_0_VTDBAR) Variable-Range MTRR Format Physical Base 5 (MTRR_PHYSBASE5_REG_0_0_0_VTDBAR) Variable-Range MTRR Format Physical Mask 5 (MTRR_PHYSMASK5_REG_0_0_0_VTDBAR) Variable-Range MTRR Format Physical Base 6 (MTRR_PHYSBASE6_REG_0_0_0_VTDBAR) Variable-Range MTRR Format Physical Mask 6 (MTRR_PHYSMASK6_REG_0_0_0_VTDBAR) Variable-Range MTRR Format Physical Base 7 (MTRR_PHYSBASE7_REG_0_0_0_VTDBAR) Variable-Range MTRR Format Physical Mask 7 (MTRR_PHYSMASK7_REG_0_0_0_VTDBAR) Variable-Range MTRR Format Physical Base 8 (MTRR_PHYSBASE8_REG_0_0_0_VTDBAR) Variable-Range MTRR Format Physical Mask 8 (MTRR_PHYSMASK8_REG_0_0_0_VTDBAR) Variable-Range MTRR Format Physical Base 9 (MTRR_PHYSBASE9_REG_0_0_0_VTDBAR) Variable-Range MTRR Format Physical Mask 9 (MTRR_PHYSMASK9_REG_0_0_0_VTDBAR) Performance Monitoring Capabilities (PERFCAP_0_0_0_VTDBAR) Enhanced Command (ECMD_0_0_0_VTDBAR) Enhanced Command Response (ERESP_0_0_0_VTDBAR) Enhanced Command Status (ESTS0_0_0_0_VTDBAR) Enhanced Command Status (ESTS1_0_0_0_VTDBAR) Enhanced Command Capabilities (ECMD_CAP0_0_0_0_VTDBAR) Enhanced Command Capabilities (ECMD_CAP1_0_0_0_VTDBAR) Enhanced Command Capabilities (ECMD_CAP2_0_0_0_VTDBAR) Enhanced Command Capabilities (ECMD_CAP3_0_0_0_VTDBAR) Fault Recording Register Low [0] (FRCDL_REG_0_0_0_VTDBAR) Fault Recording Register High [0] (FRCDH_REG_0_0_0_VTDBAR) Invalidate Address Register (IVA_REG_0_0_0_VTDBAR) IOTLB Invalidate Register (IOTLB_REG_0_0_0_VTDBAR)
D11:F0 Vision Processing Unit Device ID and Vendor ID (DEVVENDID) Status and Command (STATUSCOMMAND) Revision ID and Class Code (REVCLASSCODE) Cache Line Latency Header and BIST (CLLATHEADERBIST) Base Address Register (BAR) Base Address Register High (BAR_HIGH) Base Address Register1 (BAR1) Base Address Register1 High (BAR1_HIGH) Base Address Register (BAR2) Base Address Register High (BAR2_HIGH) Subsystem Vendor and Subsystem ID (SUBSYSTEMID) Expansion ROM Base Address (EXPANSION_ROM_BASEADDR) Capabilities Pointer (CAPABILITYPTR) Interrupt (INTERRUPTREG) PCIe Capabilities (PCIECAPREG) PCIe Device Capability (DEVCAPREG) PCIe Device Control Status (DEVCTRLSTAT) PCIe Device Capability2 (DEVCAPREG2) PCIe Device Control2 Status (DEVCTRLSTAT2) Power Management Capability ID (POWERCAPID) Power Management Control And Status (PMECTRLSTATUS) PCI Device Idle Vendor Capability (PCIDEVIDLE_CAP_RECORD) Vendor Specific Extended Capability (DEVID_VEND_SPECIFIC_REG) Software LTR Update MMIO Location (D0I3_CONTROL_SW_LTR_MMIO_REG) Device Idle Pointer (DEVICE_IDLE_POINTER_REG) D0i3 And Power Control Enable (D0I3_MAX_POW_LAT_PG_CONFIG) General Purpose Read Write 1 (GEN_PCI_REGRW1) General Purpose Read Write 2 (GEN_PCI_REGRW2) General Purpose Read Write 3 (GEN_PCI_REGRW3) General Purpose Read Write 4 (GEN_PCI_REGRW4) General Purpose Input (GEN_INPUT_REG) Msix Capability (MSIX_CAP_REG) MSIX Table Pointer (MSIX_TABLE_PTR) MSIX PBA Pointer (MSIX_PBA_PTR) MSI Capability (MSI_CAP_REG) MSI Message Low Address (MSI_ADDR_LOW) MSI Message High Address (MSI_ADDR_HIGH) MSI Message Data (MSI_MSG_DATA) MSI Mask (MSI_MASK) MSI Pending (MSI_PENDING) VTDBAR Base Low Address (VTDBAR_LOW) VTdBAR Base High Address (VTDBAR_HIGH) Manufacturers ID (MANID) ATS Extended Capability Header (ATS_EXT_CAP_HEAD) ATS Capability and Control (ATS_CAP_CONTROL_HEAD) SRIOV PCIE Capability (SRIOV_PCIE_CAP_ID) SRIOV Capability (SRIOV_CAP) SRIOV Control And Status (SRIOV_CTRL_STATUS) Initial and Total VF (TOT_INIT_VF) NUMVF And Function Dependency Link (NUMVF_SRIOV_FUN_DEP_LINK) VF Offset Stride (VF_OFFSET_STRIDE) VF Device ID (VF_DEVICE_ID) SRIOV Supported Page Size (SRIOV_SUP_PAGE_SIZE) SRIOV System Page Size (SRIOV_SYSTEM_PAGE_SIZE) VF Base Address Low (VF_BASE_ADDR_REG_LOW) VF Base Address High (VF_BASE_ADDR_REG_HI) VF Migration Array (VF_MIGRATION_ARRAY)
D2:F0 Processor Graphics Vendor Identification (VID2_0_2_0_PCI) Device Identification (DID2_0_2_0_PCI) PCI Command (PCICMD_0_2_0_PCI) PCI Status (PCISTS2_0_2_0_PCI) Revision Identification and Class Code register (RID2_CC_0_2_0_PCI) Cache Line Size (CLS_0_2_0_PCI) Master Latency Timer (MLT2_0_2_0_PCI) Header Type (HDR2_0_2_0_PCI) Built In Self Test (BIST_0_2_0_PCI) Graphics Translation Table Memory Mapped Range Address (GTTMMADR0_0_2_0_PCI) Graphics Translation Table Memory Mapped Range Address (GTTMMADR1_0_2_0_PCI) Local Memory Bar (LMEMBAR0_0_2_0_PCI) Local Memory Bar (LMEMBAR1_0_2_0_PCI) Subsystem Vendor Identification (SVID2_0_2_0_PCI) Subsystem Identification (SID2_0_2_0_PCI) Capabilities Pointer (CAPPOINT_0_2_0_PCI) Interrupt Line (INTRLINE_0_2_0_PCI) Interrupt Pin (INTRPIN_0_2_0_PCI) Minimum Grant (MINGNT_0_2_0_PCI) Maximum Latency (MAXLAT_0_2_0_PCI) Capability Identifier (CAPID0_0_2_0_PCI) Capabilities Control (CAPCTRL0_0_2_0_PCI) Capabilities A (CAPID0_A_0_2_0_PCI) Capabilities B (CAPID0_B_0_2_0_PCI) PCI Mirror of GMCH Graphics Control (MGGC0_0_2_0_PCI) Device 2 Control (DEV2CTL_0_2_0_PCI) VTd Status (VTD_STATUS_0_2_0_PCI) PCI Express Capability Header (PCIECAPHDR_0_2_0_PCI) PCI Express Capability (PCIECAP_0_2_0_PCI) Device Capabilities (DEVICECAP_0_2_0_PCI) PCI Express Device Control (DEVICECTL_0_2_0_PCI) PCI Express Device Status Register (DEVICESTS_0_2_0_PCI) Link Capabilities (LINKCAP_0_2_0_PCI) Link Control and Status (LINKCTRLSTS_0_2_0_PCI) Device Capabilities 2 (DEVCAP2_0_2_0_PCI) Device Control 2 (DEVCTRL2_0_2_0_PCI) Link Capabilities 2 (LINKCAP2_0_2_0_PCI) Message Signaled Interrupts Capability ID (MSI_CAPID_0_2_0_PCI) Message Control (MC_0_2_0_PCI) Message Address (MA0_0_2_0_PCI) Message Address (MA1_0_2_0_PCI) Message Data (MD_0_2_0_PCI) MSI Mask Bits (MSI_MASK_0_2_0_PCI) MSI Pending Bits (MSI_PEND_0_2_0_PCI) Power Management Capabilities ID (PMCAPID_0_2_0_PCI) Power Management Capabilities (PMCAP_0_2_0_PCI) Power Management Control and Status (PMCS_0_2_0_PCI) Graphics System Event (GSE_0_2_0_PCI) Device 2 Mirror of Protected Audio Video Path Control (PAVPC0_0_2_0_PCI) Device 2 Mirror of Protected Audio Video Path Control (PAVPC1_0_2_0_PCI) Stepping Revision ID (SRID_0_2_0_PCI) ASL Storage (ASLS_0_2_0_PCI) ARI Extended Capability Header (ARI_CAPHDR_0_2_0_PCI) ARI Capability (ARI_CAP_0_2_0_PCI) ARI Control (ARI_CTRL_0_2_0_PCI) PASID Extended Capability Header (PASID_EXTCAP_0_2_0_PCI) PASID Capability (PASID_CAP_0_2_0_PCI) PASID Control (PASID_CTRL_0_2_0_PCI) ATS Extended Capability Header (ATS_EXTCAP_0_2_0_PCI) ATS Capability (ATS_CAP_0_2_0_PCI) ATS Control (ATS_CTRL_0_2_0_PCI) Page Request Extended Capability Header (PR_EXTCAP_0_2_0_PCI) Page Request Control (PR_CTRL_0_2_0_PCI) Page Request Status (PR_STATUS_0_2_0_PCI) Outstanding Page Request Capacity (OPRC_0_2_0_PCI) Outstanding Page Request Allocation (OPRA_0_2_0_PCI) SRIOV Extended Capability Header (SRIOV_ECAPHDR_0_2_0_PCI) SRIOV Capabilities (SRIOV_CAP_0_2_0_PCI) SRIOV Control Register (SRIOV_CTRL_0_2_0_PCI) SRIOV Status (SRIOV_STS_0_2_0_PCI) SRIOV Initial VFs (SRIOV_INITVFS_0_2_0_PCI) SRIOV Total VFs (SRIOV_TOTVFS_0_2_0_PCI) Number Of VFs (SRIOV_NUMOFVFS_0_2_0_PCI) First VF Offset (FIRST_VF_OFFSET_0_2_0_PCI) VF Stride (VF_STRIDE_0_2_0_PCI) VF Device ID (VF_DEVICEID_0_2_0_PCI) Supported Page Sizes (SUPPORTED_PAGE_SIZES_0_2_0_PCI) System Page Sizes (SYSTEM_PAGE_SIZES_0_2_0_PCI) VF BAR0 Lower DWORD (VF_BAR0_LDW_0_2_0_PCI) VF BAR0 Upper DWORD (VF_BAR0_UDW_0_2_0_PCI) VF Migration State Array Offset (VF_MIGST_OFFSET_0_2_0_PCI) LTR Extended Capability Header (LTR_CAPHDR_0_2_0_PCI) Max Snoop Latency Register (MAX_SNP_LAT_0_2_0_PCI) Max No Snoop Latency Register (MAX_NOSNP_LAT_0_2_0_PCI) PF Resizable Capability Header (PF_RESIZE_CAPHDR_0_2_0_PCI) PF Resizable BAR Capability (PF_RESIZE_BAR_CAP_0_2_0_PCI) PF Resizable BAR Control (PF_RESIZABLE_BAR_CTRL_0_2_0_PCI)

Device Enable (DEVEN_0_4_0_PCI) – Offset 54

Allows for enabling/disabling of PCI devices and functions that are within the CPU package. The table below the bit definitions describes the behavior of all combinations of transactions to devices controlled by this register. All the bits in this register are Intel TXT Lockable.

Bit Range

Default

Access

Field Name and Description

31:18

0h

RO

Reserved

17

1h

RW/L

(D10EN)

Device10 enable
0: Bus 0 Device 10 is disabled and not visible.
1: Bus 0 Device 10 is enabled and visible.
INFO: MTL does not allow BIOS to disable DEV10. See requirements for Platform Monitoring Technology (PMT)

16

0h

RO

Reserved

15

1h

RW/L

(D8EN)

0: Bus 0 Device 8 is disabled and not visible.
1: Bus 0 Device 8 is enabled and visible.
This bit will be set to 0b and remain 0b if Device 8 capability is disabled.

14

1h

RW/L

(D14F0EN)

VMD Enable:
0: Bus 0 Device 14 Function 0 is disabled and hidden.
1: Bus 0 Device 14 Function 0 is enabled and visible.

13

0h

RO

Reserved

12

1h

RW/L

(D9EN)

0: Bus 0 Device 9 is disabled and not visible.
1: Bus 0 Device 9 is enabled and visible.
This bit will be set to 0b and remain 0b if Device 9 capability is disabled.

11

0h

RO

Reserved

10

1h

RW/L

(D5EN)

0: Bus 0 Device 5 is disabled and not visible.
1: Bus 0 Device 5 is enabled and visible.
This bit will be set to 0b and remain 0b if Device 5 capability is disabled.

9:8

0h

RO

Reserved

7

1h

RW/L

(D4EN)

0: Bus 0 Device 4 is disabled and not visible.
1: Bus 0 Device 4 is enabled and visible.
This bit will be set to 0b and remain 0b if Device 4 capability is disabled.

6:5

0h

RO

Reserved

4

1h

RW/L

(D2EN)

0: Bus 0 Device 2 is disabled and hidden
1: Bus 0 Device 2 is enabled and visible
This bit will be set to 0b and remain 0b if Device 2 capability is disabled.

3:1

0h

RO

Reserved

0

1h

RO

(D0EN)

Bus 0 Device 0 Function 0 may not be disabled and is therefore hardwired to 1.