12th Generation Intel® Core™ Processor Datasheet Volume 2 of 2
| ID | Date | Version | Classification |
|---|---|---|---|
| 767626 | 07/13/2023 | Public |
Introduction
Processor Configuration Register Definitions and Address Ranges
D0:F0 Host Bridge and DRAM Controller - DMIBAR Registers
D0:F0 Host Bridge and DRAM Controller - GFXVTBAR Registers
D0:F0 Host Bridge and DRAM Controller - GTTMMADR Registers (part 1)
D0:F0 Host Bridge and DRAM Controller - GTTMMADR Registers (part 2)
D0:F0 Host Bridge and DRAM Controller - Host Bridge/DRAM Registers (part 1)
D0:F0 Host Bridge and DRAM Controller - Host Bridge/DRAM Registers (part 2)
D0:F0 Host Bridge and DRAM Controller - MCHBAR Host Controller Registers (part 1)
D0:F0 Host Bridge and DRAM Controller - MCHBAR Host Controller Registers (part 2)
D0:F0 Host Bridge and DRAM Controller - MCHBAR Memory Controller Registers (part 2)
D0:F0 Host Bridge and DRAM Controller - MCHBAR Memory Controller Registers (part 3)
D0:F0 Host Bridge and DRAM Controller - MCHBAR Memory Controller Registers (part 4)
D0:F0 Host Bridge and DRAM Controller - MCHBAR Memory Controller Registers (part 5)
D0:F0 Host Bridge and DRAM Controller - MCHBAR Power Management Registers (part 1)
D0:F0 Host Bridge and DRAM Controller - MCHBAR Power Management Registers (part 2)
D0:F0 Host Bridge and DRAM Controller - PXPEPBAR PCI Express Egress Port Registers
D0:F0 Host Bridge and DRAM Controller - VTDPVC0BAR Registers
D1:F0-1 PCI Express* Controller Registers
D10:F0 Platform Monitoring Technology (PMT) Registers
D14:F0 Volume Management Device
D14:F0 Volume Management Device MEMBAR2 Registers
D2:F0 Processor Graphics
D4:F0 Dynamic Tuning Technology Registers
D6:F0 PCI Express* Controller Registers
D8:F0 Gauss Newton Algorithm Registers
D0:F0 Host Bridge and DRAM Controller - DMIBAR Registers
Device Identifiers (ID)
Device Command (CMD)
Primary Status (PSTS)
Revision ID (RID_CC)
Header Type (HTYPE)
Secondary Status (SSTS)
Subsystem Vendor ID (SVD)
Capabilities List Pointer (CAPP)
Bridge Control (BCTRL)
Device Capabilities (DCAP)
Device Control (DCTL)
Device Status (DSTS)
Link Capabilities (LCAP)
Link Control (LCTL)
Link Status (LSTS)
Root Control (RCTL)
Root Status (RSTS)
Device Capabilities 2 (DCAP2)
Device Control 2 (DCTL2)
Device Status 2 (DSTS2)
Link Capabilities 2 (LCAP2)
Link Control 2 (LCTL2)
Link Status 2 (LSTS2)
Slot Capabilities 2 (SLCAP2)
Slot Control 2 (SLCTL2)
Slot Status 2 (SLSTS2)
Message Signaled Interrupt Identifiers (MID)
Message Signaled Interrupt Message (MC)
Message Signaled Interrupt Message Address (MA)
Message Signaled Interrupt Message Data (MD)
Subsystem Vendor Capability (SVCAP)
Subsystem Vendor IDs (SVID)
Power Management Capability (PMCAP)
PCI Power Management Capabilities (PMC)
PCI Power Management Control (PMCS)
Advanced Error Extended (AECH)
Uncorrectable Error Status (UES)
Uncorrectable Error Mask (UEM)
Uncorrectable Error Severity (UEV)
Correctable Error Status (CES)
Correctable Error Mask (CEM)
Advanced Error Capabilities And Control (AECC)
Header Log (HL_DW1)
Header Log (HL_DW2)
Header Log (HL_DW3)
Header Log (HL_DW4)
Root Error Command (REC)
Root Error Status (RES)
Error Source Identification (ESID)
PTM Extended Capability Header (PTMECH)
Port VC Capability Register 1 (PVCCR1)
Port VC Capability 2 (PVCC2)
Port VC Control (PVCC)
Port VC Status (PVCS)
Virtual Channel 0 Resource Capability (V0VCRC)
Virtual Channel 0 Resource Control (V0CTL)
Virtual Channel 0 Resource Status (V0STS)
Virtual Channel 1 Resource Capability (V1VCRC)
Virtual Channel 1 Resource Control (V1CTL)
Virtual Channel 1 Resource Status (V1STS)
Secondary PCI Express Extended Capability Header (SPEECH)
Link Control 3 (LCTL3)
Lane Error Status (LES)
Lane 0 And Lane 1 Equalization Control (L01EC)
Lane 2 And Lane 3 Equalization Control (L23EC)
Lane 4 And Lane 5 Equalization Control (L45EC)
Lane 6 And Lane 7 Equalization Control (L67EC)
Lane 8 And Lane 9 Equalization Control (L89EC)
Lane 10 And Lane 11 Equalization Control (L1011EC)
Lane 12 And Lane 13 Equalization Control (L1213EC)
Lane 14 And Lane 15 Equalization Control (L1415EC)
Data Link Feature Extended Capability Header (DLFECH)
Data Link Feature Capabilities Register (DLFCAP)
Data Link Feature Status Register (DLFSTS)
Physical Layer 16.0 GT/s Extended Capability Header (PL16GECH)
Physical Layer 16.0 GT/s Capability Register (PL16CAP)
Physical Layer 16.0 GT/s Control Register (PL16CTL)
Physical Layer 16.0 GT/s Status Register (PL16S)
Physical Layer 16.0 GT/s Local Data Parity Mismatch Status Register (PL16LDPMS)
Physical Layer 16.0 GT/s First Retimer Data Parity Mismatch Status Register (PL16FRDPMS)
Physical Layer 16.0 GT/s Second Retimer Data Parity Mismatch Status Register (PL16SRDPMS)
Physical Layer 16.0 GT/s Extra Status Register (PL16ES)
Physical Layer 16.0 GT/s Lane 01 Equalization Control Register (PL16L01EC)
Physical Layer 16.0 GT/s Lane 23 Equalization Control Register (PL16L23EC)
Physical Layer 16.0 GT/s Lane 45 Equalization Control Register (PL16L45EC)
Physical Layer 16.0 GT/s Lane 67 Equalization Control Register (PL16L67EC)
Physical Layer 16.0 GT/s Lane 89 Equalization Control Register (PL16L89EC)
Physical Layer 16.0 GT/s Lane 1011 Equalization Control Register (PL16L1011EC)
Physical Layer 16.0 GT/s Lane 1213 Equalization Control Register (PL16L1213EC)
Physical Layer 16.0 GT/s Lane 1415 Equalization Control Register (PL16L1415EC)
VNN Removal Control (VNNREMCTL)
VNN Removal Save And Restore Hardware Contexts 1 (VNNRSNRC1)
Device ID Override (DIDOVR)
Physical Layer 16.0 GT/s Margining Extended Capability Header (PL16MECH)
Physical Layer 16.0 GT/s Margining Port Capabilities and Port Status (PL16MPCPS)
Physical Layer 16.0 GT/s Lane0 Margin Control and Status Register (PL16L0MCS)
Physical Layer 16.0 GT/s Lane1 Margin Control and Status Register (PL16L1MCS)
Physical Layer 16.0 GT/s Lane2 Margin Control and Status Register (PL16L2MCS)
Physical Layer 16.0 GT/s Lane3 Margin Control and Status Register (PL16L3MCS)
Physical Layer 16.0 GT/s Lane4 Margin Control and Status Register (PL16L4MCS)
Physical Layer 16.0 GT/s Lane5 Margin Control and Status Register (PL16L5MCS)
Physical Layer 16.0 GT/s Lane6 Margin Control and Status Register (PL16L6MCS)
Physical Layer 16.0 GT/s Lane7 Margin Control and Status Register (PL16L7MCS)
Physical Layer 16.0 GT/s Lane8 Margin Control and Status Register (PL16L8MCS)
Physical Layer 16.0 GT/s Lane9 Margin Control and Status Register (PL16L9MCS)
Physical Layer 16.0 GT/s Lane10 Margin Control and Status Register (PL16L10MCS)
Physical Layer 16.0 GT/s Lane11 Margin Control and Status Register (PL16L11MCS)
Physical Layer 16.0 GT/s Lane12 Margin Control and Status Register (PL16L12MCS)
Physical Layer 16.0 GT/s Lane13 Margin Control and Status Register (PL16L13MCS)
Physical Layer 16.0 GT/s Lane14 Margin Control and Status Register (PL16L14MCS)
Physical Layer 16.0 GT/s Lane15 Margin Control and Status Register (PL16L15MCS)
D0:F0 Host Bridge and DRAM Controller - GFXVTBAR Registers
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)
Global 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)
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)
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)
D0:F0 Host Bridge and DRAM Controller - GTTMMADR Registers (part 2)
Cycle Sum of Active Graphics (PKG_GT_C0_ANY_0_2_0_GTTMMADR)
Cycle Sum of Overlapping Active GT and Core (PKG_GT_AND_IA_OVERLAP_0_2_0_GTTMMADR)
Cycle Sum of Any Active GT Slice (PKG_GT_C0_ANY_SLICE_0_2_0_GTTMMADR)
Cycle Sum of All Active GT Slice (PKG_GT_C0_SLICES_SUM_0_2_0_GTTMMADR)
Cycle Sum of Any Graphics (PKG_GT_C0_ANY_MEDIA_0_2_0_GTTMMADR)
GT Performance Status (GT_PERF_STATUS_0_2_0_GTTMMADR)
Thermal Status GT (THERM_STATUS_GT_0_2_0_GTTMMADR)
GT Thermal Interrupt (THERM_INTERRUPT_GT_0_2_0_GTTMMADR)
PCU Reference Clock (PCU_REFERENCE_CLOCK_0_2_0_GTTMMADR)
Graphics Any Ratio (PKG_GT_C0_ANY_RATIO_0_2_0_GTTMMADR)
Cycle Sum of Any Active GT Slice Ratio (PKG_GT_C0_ANY_SLICE_RATIO_0_2_0_GTTMMADR)
Cycle Sum of Graphics Eus (PKG_GT_C0_EUS_SUM_0_2_0_GTTMMADR)
Cycle Sum of Any Active Media (PKG_GT_C0_MEDIA_SUM_0_2_0_GTTMMADR)
D0:F0 Host Bridge and DRAM Controller - Host Bridge/DRAM Registers (part 2)
PCI Express Egress Port Base Address (PXPEPBAR_0_0_0_PCI)
MCHBAR Base Address Register (MCHBAR_0_0_0_PCI)
Graphics Control (GGC_0_0_0_PCI)
Device Enable (DEVEN_0_0_0_PCI)
Protected Audio Video Path Control (PAVPC_0_0_0_PCI)
DMA Protected Range (DPR_0_0_0_PCI)
PCIEXBAR Base Address Register (PCIEXBAR_0_0_0_PCI)
DMIBAR Base Address Register (DMIBAR_0_0_0_PCI)
Programmable Attribute Map 0 (PAM0_0_0_0_PCI)
Programmable Attribute Map 1 (PAM1_0_0_0_PCI)
Programmable Attribute Map 2 (PAM2_0_0_0_PCI)
Programmable Attribute Map 3 (PAM3_0_0_0_PCI)
Programmable Attribute Map 4 (PAM4_0_0_0_PCI)
Programmable Attribute Map 5 (PAM5_0_0_0_PCI)
Programmable Attribute Map 6 (PAM6_0_0_0_PCI)
Legacy Access Control (LAC_0_0_0_PCI)
Top of Memory (TOM_0_0_0_PCI)
Top of Upper Usable DRAM (TOUUD_0_0_0_PCI)
Base Data of Stolen Memory (BDSM_0_0_0_PCI)
Base of GTT Stolen Memory (BGSM_0_0_0_PCI)
TSEG Memory Base (TSEGMB_0_0_0_PCI)
Top of Low Usable DRAM (TOLUD_0_0_0_PCI)
Error Status (ERRSTS_0_0_0_PCI)
Error Command (ERRCMD_0_0_0_PCI)
SMI DMI Special Cycle (SMICMD_0_0_0_PCI)
SCI DMI Special Cycle (SCICMD_0_0_0_PCI)
Scratchpad Data (SKPD_0_0_0_PCI)
Capabilities A (CAPID0_A_0_0_0_PCI)
Capabilities B (CAPID0_B_0_0_0_PCI)
Capabilities C (CAPID0_C_0_0_0_PCI)
Capabilities E (CAPID0_E_0_0_0_PCI)
D0:F0 Host Bridge and DRAM Controller - MCHBAR Host Controller Registers (part 2)
Type-C Sub-system Device Enable (TCSS_DEVEN_0_0_0_MCHBAR_IMPH)
Capabilities D (CAPID0_D_0_0_0_MCHBAR)
Capabilities F (CAPID0_F_0_0_0_PCI)
REGBAR Base Address (REGBAR_0_0_0_MCHBAR_IMPH)
Memory Slice Hash Register (MEMORY_SLICE_HASH_MCHBAR_IMPH)
D0:F0 Host Bridge and DRAM Controller - MCHBAR Memory Controller Registers (part 2)
Inter-Channel Decode Parameters (MAD_INTER_CHANNEL_0_0_0_MCHBAR)
Intra-Channel 0 Decode Parameters (MAD_INTRA_CH0_0_0_0_MCHBAR)
Intra-Channel 1 Decode Parameters (MAD_INTRA_CH1_0_0_0_MCHBAR)
Channel 0 DIMM Characteristics (MAD_DIMM_CH0_0_0_0_MCHBAR)
Channel 1 DIMM Characteristics (MAD_DIMM_CH1_0_0_0_MCHBAR)
Memory Request Global Counter (PWM_TOTAL_REQCOUNT_0_0_0_MCHBAR)
RdCAS Counter (PWM_RDCAS_COUNT_0_0_0_MCHBAR)
Address Compare for ECC Error Inject (ECC_Inj_Addr_Compare_0_0_0_MCHBAR)
Remap Base (REMAPBASE_0_0_0_MCHBAR)
Remap Limit (REMAPLIMIT_0_0_0_MCHBAR)
WrCAS Counter (PWM_WRCAS_COUNT_0_0_0_MCHBAR)
Address Mask for ECC Error Inject (ECC_Inj_Addr_Mask_0_0_0_MCHBAR)
PMON GLOBAL CONTROL 0 0 0 MCHBAR (PMON_GLOBAL_CONTROL_0_0_0_MCHBAR)
PMON UNIT CONTROL 0 0 0 MCHBAR (PMON_UNIT_CONTROL_0_0_0_MCHBAR)
PMON COUNTER CONTROL 0 0 0 MCHBAR (PMON_COUNTER_CONTROL_0_0_0_MCHBAR[0])
PMON COUNTER DATA 0 0 0 MCHBAR (PMON_COUNTER_DATA_0_0_0_MCHBAR[0])
OS Telemetry Control (OS_TELEMETRY_CONTROL_0_0_0_MCHBAR)
D0:F0 Host Bridge and DRAM Controller - MCHBAR Memory Controller Registers (part 3)
PRE Command Timing (TC_PRE_0_0_0_MCHBAR)
ACT Command Timing (TC_ACT_0_0_0_MCHBAR)
RD to RD Timings (TC_RDRD_0_0_0_MCHBAR)
RD to WR Timings (TC_RDWR_0_0_0_MCHBAR)
WR to RD Timings (TC_WRRD_0_0_0_MCHBAR)
WR to WR Timings (TC_WRWR_0_0_0_MCHBAR)
Roundtrip Latency (SC_Roundtrip_latency_0_0_0_MCHBAR)
ECC Error Log 0 (ECCERRLOG0_0_0_0_MCHBAR)
ECC Error Log 1 (ECCERRLOG1_0_0_0_MCHBAR)
Power Down Timing (TC_PWRDN_0_0_0_MCHBAR)
ODT Command Timing (TC_ODT_0_0_0_MCHBAR)
SC ODT MATRIX 0 0 0 MCHBAR (SC_ODT_MATRIX_0_0_0_MCHBAR)
Scheduler Configuration (SC_GS_CFG_0_0_0_MCHBAR)
D0:F0 Host Bridge and DRAM Controller - MCHBAR Memory Controller Registers (part 4)
TC REFm 0 0 0 MCHBAR (TC_REFm_0_0_0_MCHBAR)
MR4 Rank Temperature (MR4_RANK_TEMPERATURE_0_0_0_MCHBAR)
DDR4 Temperature (DDR4_MPR_RANK_TEMPERATURE_0_0_0_MCHBAR)
Refresh Parameters (TC_RFP_0_0_0_MCHBAR)
Refresh Timing Parameters (TC_RFTP_0_0_0_MCHBAR)
Self-Refresh Timing Parameters (TC_SRFTP_0_0_0_MCHBAR)
ZQCAL Control (TC_ZQCAL_0_0_0_MCHBAR)
Self-Refresh Exit Timing Parameters (TC_SREXITTP_0_0_0_MCHBAR)
ECC Inject Count (ECC_Inject_count_0_0_0_MCHBAR)
D0:F0 Host Bridge and DRAM Controller - MCHBAR Memory Controller Registers (part 5)
IMR0BASE (IMR0BASE_0_0_0_MCHBAR_IMPH)
IMR0MASK (IMR0MASK_0_0_0_MCHBAR_IMPH)
IMR1BASE (IMR1BASE_0_0_0_MCHBAR_IMPH)
IMR1MASK (IMR1MASK_0_0_0_MCHBAR_IMPH)
IMR2BASE (IMR2BASE_0_0_0_MCHBAR_IMPH)
IMR2MASK (IMR2MASK_0_0_0_MCHBAR_IMPH)
IMR3BASE (IMR3BASE_0_0_0_MCHBAR_IMPH)
IMR3MASK (IMR3MASK_0_0_0_MCHBAR_IMPH)
IMR4BASE (IMR4BASE_0_0_0_MCHBAR_IMPH)
IMR4MASK (IMR4MASK_0_0_0_MCHBAR_IMPH)
IMR5BASE (IMR5BASE_0_0_0_MCHBAR_IMPH)
IMR5MASK (IMR5MASK_0_0_0_MCHBAR_IMPH)
IMR6BASE (IMR6BASE_0_0_0_MCHBAR_IMPH)
IMR6MASK (IMR6MASK_0_0_0_MCHBAR_IMPH)
IMR7BASE (IMR7BASE_0_0_0_MCHBAR_IMPH)
IMR7MASK (IMR7MASK_0_0_0_MCHBAR_IMPH)
IMR8BASE (IMR8BASE_0_0_0_MCHBAR_IMPH)
IMR8MASK (IMR8MASK_0_0_0_MCHBAR_IMPH)
IMR9BASE (IMR9BASE_0_0_0_MCHBAR_IMPH)
IMR9MASK (IMR9MASK_0_0_0_MCHBAR_IMPH)
IMR10BASE (IMR10BASE_0_0_0_MCHBAR_IMPH)
IMR10MASK (IMR10MASK_0_0_0_MCHBAR_IMPH)
IMR11BASE (IMR11BASE_0_0_0_MCHBAR_IMPH)
IMR11MASK (IMR11MASK_0_0_0_MCHBAR_IMPH)
IMR12BASE (IMR12BASE_0_0_0_MCHBAR_IMPH)
IMR12MASK (IMR12MASK_0_0_0_MCHBAR_IMPH)
IMR13BASE (IMR13BASE_0_0_0_MCHBAR_IMPH)
IMR13MASK (IMR13MASK_0_0_0_MCHBAR_IMPH)
IMR14BASE (IMR14BASE_0_0_0_MCHBAR_IMPH)
IMR14MASK (IMR14MASK_0_0_0_MCHBAR_IMPH)
IMR15BASE (IMR15BASE_0_0_0_MCHBAR_IMPH)
IMR15MASK (IMR15MASK_0_0_0_MCHBAR_IMPH)
IMR16BASE (IMR16BASE_0_0_0_MCHBAR_IMPH)
IMR16MASK (IMR16MASK_0_0_0_MCHBAR_IMPH)
IMR17BASE (IMR17BASE_0_0_0_MCHBAR_IMPH)
IMR17MASK (IMR17MASK_0_0_0_MCHBAR_IMPH)
IMR18BASE (IMR18BASE_0_0_0_MCHBAR_IMPH)
IMR18MASK (IMR18MASK_0_0_0_MCHBAR_IMPH)
D0:F0 Host Bridge and DRAM Controller - MCHBAR Power Management Registers (part 1)
BIOS POST Code (BIOS_POST_CODE_0_0_0_MCHBAR_PCU)
(DDR_PTM_CTL_0_0_0_MCHBAR_PCU)
Package RAPL Performance Status (PACKAGE_RAPL_PERF_STATUS_0_0_0_MCHBAR_PCU)
Primary Plane Turbo Policy (PRIP_TURBO_PLCY_0_0_0_MCHBAR_PCU)
Secondary Plane Turbo Policy (SECP_TURBO_PLCY_0_0_0_MCHBAR_PCU)
Primary Plane Energy Status (PRIP_NRG_STTS_0_0_0_MCHBAR_PCU)
Secondary Plane Energy Status (SECP_NRG_STTS_0_0_0_MCHBAR_PCU)
Package Power SKU Unit (PACKAGE_POWER_SKU_UNIT_0_0_0_MCHBAR_PCU)
Package Energy Status (PACKAGE_ENERGY_STATUS_0_0_0_MCHBAR_PCU)
Primary Plane 0 Temperature (PP0_TEMPERATURE_0_0_0_MCHBAR_PCU)
RP-State Limits (RP_STATE_LIMITS_0_0_0_MCHBAR_PCU)
Package Power Limit (PACKAGE_RAPL_LIMIT_0_0_0_MCHBAR_PCU)
Device Idle Duration Override (DEVICE_IDLE_DURATION_OVERRIDE_0_0_0_MCHBAR_PCU)
FIVR FFFC EMI Control (FFFC_EMI_CONTROL_0_0_0_MCHBAR_PCU)
FIVR FFFC RFI Control (FFFC_RFI_CONTROL_0_0_0_MCHBAR_PCU)
FIVR FFFC RFI Control 2 (FFFC_RFI_CONTROL2_0_0_0_MCHBAR_PCU)
BIOS Mailbox Data (BIOS_Mailbox_Data_0_0_0_MCHBAR_PCU)
BIOS Mailbox Interface (BIOS_Mailbox_Interface_0_0_0_MCHBAR_PCU)
BIOS Reset Complete (BIOS_RESET_CPL_0_0_0_MCHBAR_PCU)
Memory Controller BIOS Request (MC_BIOS_REQ_0_0_0_MCHBAR_PCU)
Memory Controller BIOS Data (MC_BIOS_DATA_0_0_0_MCHBAR_PCU)
System Agent Power Management Control (SAPMCTL_0_0_0_MCHBAR_PCU)
Configurable TDP Nominal (CONFIG_TDP_NOMINAL_0_0_0_MCHBAR_PCU)
Configurable TDP Level 1 (CONFIG_TDP_LEVEL1_0_0_0_MCHBAR_PCU)
Configurable TDP Level 2 (CONFIG_TDP_LEVEL2_0_0_0_MCHBAR_PCU)
Configurable TDP Control (CONFIG_TDP_CONTROL_0_0_0_MCHBAR_PCU)
Turbo Activation Ratio (TURBO_ACTIVATION_RATIO_0_0_0_MCHBAR_PCU)
Overclocking Status (OC_STATUS_0_0_0_MCHBAR_PCU)
Base Clock (BCLK) Frequency (BCLK_FREQ_0_0_0_MCHBAR)
D0:F0 Host Bridge and DRAM Controller - MCHBAR Power Management Registers (part 2)
Cycle Sum of All Active Cores (PKG_IA_C0_ANY_SUM_0_0_0_MCHBAR_PCU)
Cycle Sum of Any Active Core (PKG_IA_C0_ANY_0_0_0_MCHBAR_PCU)
Cycle Sum of Active Graphics (PKG_GT_C0_ANY_0_0_0_MCHBAR_PCU)
Cycle Sum of Overlapping Active GT and Core (PKG_GT_AND_IA_OVERLAP_0_0_0_MCHBAR_PCU)
Cycle Sum of Any Active GT Slice (PKG_GT_C0_ANY_SLICE_0_0_0_MCHBAR_PCU)
Cycle Sum of All Active GT Slice (PKG_GT_C0_SLICES_SUM_0_0_0_MCHBAR_PCU)
Cycle Sum of Any GT Media Engine (PKG_GT_C0_ANY_MEDIA_0_0_0_MCHBAR_PCU)
Ratio Sum of Any Active Core (PKG_IA_C0_ANY_RATIO_0_0_0_MCHBAR_PCU)
Ratio Sum of Active GT (PKG_GT_C0_ANY_RATIO_0_0_0_MCHBAR_PCU)
Ratio Sum of Active GT Slice (PKG_GT_C0_ANY_SLICE_RATIO_0_0_0_MCHBAR_PCU)
System Agent Performance Status (SA_PERF_STATUS_0_0_0_MCHBAR_PCU)
GT Performance Status (GT_PERF_STATUS_0_0_0_MCHBAR_PCU)
Power Plane 0 Efficient Cycles (PP0_EFFICIENT_CYCLES_0_0_0_MCHBAR_PCU)
Power Plane 0 Thread Activity (PP0_THREAD_ACTIVITY_0_0_0_MCHBAR_PCU)
RP-State Capability (RP_STATE_CAP_0_0_0_MCHBAR_PCU)
Temperature Target (TEMPERATURE_TARGET_0_0_0_MCHBAR_PCU)
Thermal Status GT (THERM_STATUS_GT_0_0_0_MCHBAR_PCU)
Thermal Interrupt GT (therm_interrupt_GT_0_0_0_MCHBAR_PCU)
Package GT C0 EUs SUM (PKG_GT_C0_EUS_SUM)
Package GT C0 Media Sum (PKG_GT_C0_MEDIA_SUM)
D0:F0 Host Bridge and DRAM Controller - PXPEPBAR PCI Express Egress Port Registers
Egress Port Virtual Channel Capabilities (EPVCECH)
Egress Port VC Capability Register 1 (EPPVCCAP1)
Egress Port VC Capability Register 2 (EPPVCCAP2)
Egress Port VC Control (EPPVCCTL)
Egress Port Virtual Channel 0 Resource Capability (EPVC0RCAP)
Egress Port Virtual Channel 0 Resource Control (EPVC0RCTL)
Egress Port Virtual Channel 0 Resource Status (EPVC0RSTS)
Egress Port Virtual Channel 1 Resource Capability (EPVC1RCAP)
Egress Port Virtual Channel 1 Resource Control (EPVC1RCTL)
Egress Port Virtual Channel 1 Resource Status (EPVC1RSTS)
Egress Port Capablity Declaration (EPRCLDECH)
Egress Port Element Declaration Capability (EPESD)
Egress Port Link Element Declaration 1 (EPLE1D)
Egress Port Link Another Root Complex Declaration 1 (EPLE1A)
Egress Port Second Link Declaration 1 (EPULE1A)
Egress Port Link Element Declaration 2 (EPLE2D)
Egress Port Link Another Root Complex Declaration 2 (EPLE2A)
Egress Port Second Link Declaration 2 (EPULE2A)
Egress Port Link Element Declaration 3 (EPLE3D)
Egress Port Link Another Root Complex Declaration 3 (EPLE3A)
Egress Port Second Link Declaration 3 (EPULE3A)
Egress Port Link Element Declaration 4 (EPLE4D)
Egress Port Link Another Root Complex Declaration 4 (EPLE4A)
Egress Port Second Link Declaration 4 (EPULE4A)
Egress Port Link Element Declaration 5 (EPLE5D)
Egress Port Link Another Root Complex Declaration 5 (EPLE5A)
Egress Port Second Link Declaration 5 (EPULE5A)
Miscellaneous Port Configuration PXPEPBAR (MPCP)
D0:F0 Host Bridge and DRAM Controller - VTDPVC0BAR Registers
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)
Global 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)
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)
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)
D1:F0-1 PCI Express* Controller Registers
Device ID and Vendor ID (ID)
Device Command (CMD)
Primary Status (PSTS)
Revision ID and Class Code (RID_CC)
Cache Line Size (CLS)
Primary Latency Timer (PLT)
Header Type (HTYPE)
Base Address Register 0 (BAR0)
Base Address Register 1 (BAR1)
Bus Numbers (BNUM_SLT)
I/O Base And Limit (IOBL)
Secondary Status (SSTS)
Memory Base And Limit (MBL)
Prefetchable Memory Base And Limit (PMBL)
Prefetchable Memory Base Upper 32 Bits (PMBU32)
Prefetchable Memory Limit Upper 32 Bits (PMLU32)
Capabilities Pointer (CAPP)
Interrupt Information Byte 0 (INTRB0)
Interrupt Information Byte 1 (INTRB1)
Bridge Control (BCTRL)
Capabilities List (CLIST)
PCI Express Capabilities (XCAP)
Device Capabilities (DCAP)
Device Control (DCTL)
Device Status (DSTS)
Link Capabilities (LCAP)
Link Control (LCTL)
Link Status (LSTS)
Slot Capabilities (SLCAP)
Slot Control (SLCTL)
Slot Status (SLSTS)
Root Control (RCTL)
Root Capabilities (ROOTCAP)
Root Status (RSTS)
Device Capabilities 2 (DCAP2)
Device Control 2 (DCTL2)
Device Status 2 (DSTS2)
Link Capabilities 2 (LCAP2)
Link Control 2 (LCTL2)
Link Status 2 (LSTS2)
Slot Capabilities 2 (SLCAP2)
Slot Control 2 (SLCTL2)
Slot Status 2 (SLSTS2)
Message Signaled Interrupt Identifiers (MID)
Message Signaled Interrupt Message (MC)
Message Signaled Interrupt Message Address (MA)
Message Signaled Interrupt Message Upper Address (MUA)
Message Signaled Interrupt Message Data (MD)
Subsystem Vendor Capability (SVCAP)
Subsystem Vendor IDs (SVID)
Power Management Capability (PMCAP)
PCI Power Management Capabilities (PMC)
PCI Power Management Control (PMCS)
Advanced Error Extended (AECH)
Uncorrectable Error Status (UES)
Uncorrectable Error Mask (UEM)
Uncorrectable Error Severity (UEV)
Correctable Error Status (CES)
Correctable Error Mask (CEM)
Advanced Error Capabilities And Control (AECC)
Header Log (HL_DW1)
Header Log (HL_DW2)
Header Log (HL_DW3)
Header Log (HL_DW4)
Root Error Command (REC)
Root Error Status (RES)
Error Source Identification (ESID)
TLP Prefix Log 1 (TLPPL1)
TLP Prefix Log 2 (TLPPL2)
TLP Prefix Log 3 (TLPPL3)
TLP Prefix Log 4 (TLPPL4)
PTM Extended Capability Header (PTMECH)
PTM Capability (PTMCAPR)
PTM Control (PTMCTLR)
L1 Sub-States Extended Capability Header (L1SECH)
L1 Sub-States Capabilities (L1SCAP)
L1 Sub-States Control 1 (L1SCTL1)
L1 Sub-States Control 2 (L1SCTL2)
ACS Extended Capability Header (ACSECH)
ACS Capability (ACSCAPR)
ACS Control (ACSCTLR)
Port VC Capability Register 1 (PVCCR1)
Port VC Capability 2 (PVCC2)
Port VC Control (PVCC)
Port VC Status (PVCS)
Virtual Channel 0 Resource Capability (V0VCRC)
Virtual Channel 0 Resource Control (V0CTL)
Virtual Channel 0 Resource Status (V0STS)
Virtual Channel 1 Resource Capability (V1VCRC)
Virtual Channel 1 Resource Control (V1CTL)
Virtual Channel 1 Resource Status (V1STS)
DPC Extended Capability Header (DPCECH)
DPC Capability (DPCCAPR)
DPC Control (DPCCTLR)
DPC Status (DPCSR)
DPC Error Source ID (DPCESIDR)
RP PIO Status (RPPIOSR)
RP PIO Mask (RPPIOMR)
RP PIO Severity (RPPIOVR)
RP PIO SysError (RPPIOSER)
RP PIO Exception (RPPIOER)
RP PIO Header Log DW1 (RPPIOHLR_DW1)
RP PIO Header Log DW2 (RPPIOHLR_DW2)
RP PIO Header Log DW3 (RPPIOHLR_DW3)
RP PIO Header Log DW4 (RPPIOHLR_DW4)
Secondary PCI Express Extended Capability Header (SPEECH)
Link Control 3 (LCTL3)
Lane Error Status (LES)
Lane 0 And Lane 1 Equalization Control (L01EC)
Lane 2 And Lane 3 Equalization Control (L23EC)
Lane 4 And Lane 5 Equalization Control (L45EC)
Lane 6 And Lane 7 Equalization Control (L67EC)
Lane 8 And Lane 9 Equalization Control (L89EC)
Lane 10 And Lane 11 Equalization Control (L1011EC)
Lane 12 And Lane 13 Equalization Control (L1213EC)
Lane 14 And Lane 15 Equalization Control (L1415EC)
Data Link Feature Extended Capability Header (DLFECH)
Data Link Feature Capabilities (DLFCAP)
Data Link Feature Status (DLFSTS)
Physical Layer 16.0 GT/s Extended Capability Header (PL16GECH)
Physical Layer 16.0 GT/s Capability (PL16CAP)
Physical Layer 16.0 GT/s Control (PL16CTL)
Physical Layer 16.0 GT/s Status (PL16S)
Physical Layer 16.0 GT/s Local Data Parity Mismatch Status (PL16LDPMS)
Physical Layer 16.0 GT/s First Retimer Data Parity Mismatch Status (PL16FRDPMS)
Physical Layer 16.0 GT/s Second Retimer Data Parity Mismatch Status (PL16SRDPMS)
Physical Layer 16.0 GT/s Extra Status (PL16ES)
Physical Layer 16.0 GT/s Lane 01 Equalization Control (PL16L01EC)
Physical Layer 16.0 GT/s Lane 23 Equalization Control (PL16L23EC)
Physical Layer 16.0 GT/s Lane 45 Equalization Control (PL16L45EC)
Physical Layer 16.0 GT/s Lane 67 Equalization Control (PL16L67EC)
Physical Layer 16.0 GT/s Lane 89 Equalization Control (PL16L89EC)
Physical Layer 16.0 GT/s Lane 1011 Equalization Control (PL16L1011EC)
Physical Layer 16.0 GT/s Lane 1213 Equalization Control (PL16L1213EC)
Physical Layer 16.0 GT/s Lane 1415 Equalization Control (PL16L1415EC)
Physical Layer 32.0 GT/s Extended Capability Header (G5ECH)
Physical Layer 32.0 GT/s Capability (G5CAP)
Physical Layer 32.0 GT/s Control (G5CTL)
Physical Layer 32.0 GT/s Status (G5STS)
Receiver Modified TS Data 1 (RCVDMODTSDATA1)
Receiver Modified TS Data 2 (RCVDMODTSDATA2)
Transmitted Modified TS Data 1 (TRNSMODTSDATA1)
Transmitted Modified TS Data 2 (TRNSMODTSDATA2)
32.0 GT/s Lane 0123 Equalization Control (G5LANEEQCTL_0)
32.0 GT/s Lane 4567 Equalization Control (G5LANEEQCTL_4)
32.0 GT/s Lane 891011 Equalization Control (G5LANEEQCTL_8)
32.0 GT/s Lane 12131415 Equalization Control (G5LANEEQCTL_12)
Alternate Protocol Extended Capability Header (APEC)
Alternate Protocol Capabilities (APCAPR)
Alternate Protocol Control (APCTRLR)
Alternate Protocol Data 1 (APD1R)
Alternate Protocol Data 2 (APD2R)
Alternate Protocol Selective Enable Mask (APSEMR)
Multicast Extended Capability Header (MCECH)
Multicast Extended Capability (MCAPR)
Multicast Control (MCCTLR)
Multicast Base Address Register 1 (MCBADRR1)
Multicast Base Address Register 2 (MCBADRR2)
Multicast Receive (MCRR)
Multicast Block All (MCBAR)
Multicast Block Untranslated (MCBUR)
Multicast Overlay BAR 1 (MCOB1)
Multicast Overlay BAR 2 (MCOB2)
VNN Removal Control (VNNREMCTL)
VNN Removal Save And Restore Hardware Contexts 1 (VNNRSNRC1)
Physical Layer 16.0 GT/s Margining Extended Capability Header (PL16MECH)
Physical Layer 16.0 GT/s Margining Port Capabilities and Port Status Byte 0 & 1 (PL16MPCPSB01)
Physical Layer 16.0 GT/s Margining Port Capabilities and Port Status Byte 2 & 3 (PL16MPCPSB23)
Physical Layer 16.0 GT/s Lane0 Margin Control and Status (PL16L0MCS)
Physical Layer 16.0 GT/s Lane1 Margin Control and Status (PL16L1MCS)
Physical Layer 16.0 GT/s Lane2 Margin Control and Status (PL16L2MCS)
Physical Layer 16.0 GT/s Lane3 Margin Control and Status (PL16L3MCS)
Physical Layer 16.0 GT/s Lane4 Margin Control and Status (PL16L4MCS)
Physical Layer 16.0 GT/s Lane5 Margin Control and Status (PL16L5MCS)
Physical Layer 16.0 GT/s Lane6 Margin Control and Status (PL16L6MCS)
Physical Layer 16.0 GT/s Lane7 Margin Control and Status (PL16L7MCS)
Physical Layer 16.0 GT/s Lane8 Margin Control and Status (PL16L8MCS)
Physical Layer 16.0 GT/s Lane9 Margin Control and Status (PL16L9MCS)
Physical Layer 16.0 GT/s Lane10 Margin Control and Status (PL16L10MCS)
Physical Layer 16.0 GT/s Lane11 Margin Control and Status (PL16L11MCS)
Physical Layer 16.0 GT/s Lane12 Margin Control and Status (PL16L12MCS)
Physical Layer 16.0 GT/s Lane13 Margin Control and Status (PL16L13MCS)
Physical Layer 16.0 GT/s Lane14 Margin Control and Status (PL16L14MCS)
Physical Layer 16.0 GT/s Lane15 Margin Control and Status (PL16L15MCS)
D10:F0 Platform Monitoring Technology (PMT) Registers
Device ID and Vendor ID (VENDOR_ID_DEVICE_ID)
Command and Status (COMMAND_STATUS)
Revision ID and Class Code (REVISION_ID)
Cache Line Size, Master Latency Timer, Header Type and BIST (CACHE_LINE_SIZE)
PM Base Address (PM_BAR)
Subsystem Vendor ID and Subsystem ID (SUBSYSTEM_VENDOR_ID)
Capabilities Pointer (CAPABILITIES_POINTER)
Interrupt line (INTERRUPT_LINE)
PCIe Capability ID (PCIE_CAPID)
Device Capabilities (DEV_CAP)
PCIE Device Control and Status (DEV_CTL_STS)
Power Management Capabilities (PM_CAPID)
Power Management Control Status (PM_CONTROL_STATUS)
Telemetry Capability Header (TELEM_CAPABILITY_HEADER)
Telemetry VSEC 0 (TELEM_VSEC_0)
Telemetry VSEC 1 (TELEM_VSEC_1)
Telemetry VSEC 2 (TELEM_VSEC_2)
Watcher Capability Header (WATCHER_CAPABILITY_HEADER)
Watcher VSEC 0 (WATCHER_VSEC_0)
Watcher VSEC 1 (WATCHER_VSEC_1)
Watcher VSEC 2 (WATCHER_VSEC_2)
Crashlog Capability Header (CRASHLOG_CAPABILITY_HEADER)
Crashlog VSEC 0 (CRASHLOG_VSEC_0)
Crashlog VSEC 1 (CRASHLOG_VSEC_1)
Crashlog VSEC 2 (CRASHLOG_VSEC_2)
D14:F0 Volume Management Device
Vendor ID (VID_0_14_0_PCI)
Device ID (DID_0_14_0_PCI)
PCI Command (PCICMD_0_14_0_PCI)
PCI Status (PCISTS_0_14_0_PCI)
Revision ID (RID_0_14_0_PCI)
Class Code (CCRIF_0_14_0_PCI)
Class Code Register Classes (CCRC_0_14_0_PCI)
Cache Line Size (CLSR_0_14_0_PCI)
Header Type (HDR_0_14_0_PCI)
VMD Configuration Base Address (CFGBAR_0_14_0_PCI)
VMD Memory Base Address Range 1 (MEMBAR1_0_14_0_PCI)
VMD Memory Base Address Range 2 (MEMBAR2_0_14_0_PCI)
Subsystem Vendor ID (SVID_0_14_0_PCI)
Subsystem ID (SSID_0_14_0_PCI)
Capabilities Pointer (CAPPTR_0_14_0_PCI)
Interrupt Line Register (INTL_0_14_0_PCI)
Interrupt Pin Register (INTPIN_0_14_0_PCI)
D2:F0 Processor Graphics
Vendor ID (VID2_0_2_0_PCI)
Device ID (DID2_0_2_0_PCI)
PCI Command (PCICMD_0_2_0_PCI)
PCI Status (PCISTS2_0_2_0_PCI)
Revision ID and Class Code (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)
Graphics Memory Range Address (GMADR0_0_2_0_PCI)
Graphics Memory Range Address (GMADR1_0_2_0_PCI)
I/O Base Address (IOBAR_0_2_0_PCI)
Subsystem Vendor ID (SVID2_0_2_0_PCI)
Subsystem ID (SID2_0_2_0_PCI)
Video BIOS ROM Base Address (ROMADR_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)
Mirror of Device Enable (DEVEN0_0_2_0_PCI)
Device 2 Control (DEV2CTL_0_2_0_PCI)
Multi Size Aperture Control (MSAC_0_2_0_PCI)
Push Aperture (PUSHAP_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 Capability Structure (DEVICESTS_0_2_0_PCI)
Message Signaled Interrupts Capability ID (MSI_CAPID_0_2_0_PCI)
Message Control (MC_0_2_0_PCI)
Message Address (MA_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)
Mirror of Base Data of Stolen Memory (BDSM0_0_2_0_PCI)
Mirror of Base Data of Stolen Memory (BDSM1_0_2_0_PCI)
Graphics VTD Base Address LSB (GFXVTDBAR_LSB_0_2_0_PCI)
GFX_VTDBAR_MSB (GFXVTDBAR_MSB_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)
Software SMI (SWSMI_0_2_0_PCI)
Graphics System Event (GSE_0_2_0_PCI)
Software SCI (SWSCI_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)
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 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)
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 BAR1 Lower DWORD (VF_BAR1_LDW_0_2_0_PCI)
VF BAR1 Upper DWORD (VF_BAR1_UDW_0_2_0_PCI)
VF Migration State Array Offset (VF_MIGST_OFFSET_0_2_0_PCI)
D4:F0 Dynamic Tuning Technology Registers
Vendor ID (VID_0_4_0_PCI)
Device ID (DID_0_4_0_PCI)
PCI Command (PCICMD_0_4_0_PCI)
PCI Status (PCISTS_0_4_0_PCI)
Revision ID (RID_0_4_0_PCI)
Class Code (CC_0_4_0_PCI)
Extended Class Code (CC_0_4_0_NOPI_PCI)
Cache Line Size (CLS_0_4_0_PCI)
Master Latency Timer (MLT_0_4_0_PCI)
Header Type (HDR_0_4_0_PCI)
Built In Self Test (BIST_0_4_0_PCI)
Thermal Controller Base Address (TMBAR_0_4_0_PCI)
Subsystem Vendor ID (SVID_0_4_0_PCI)
Subsystem ID (SID_0_4_0_PCI)
Capabilities Pointer (CAPPOINT_0_4_0_PCI)
Interrupt Line Register (INTRLINE_0_4_0_PCI)
Interrupt Pin Register (INTRPIN_0_4_0_PCI)
Minimum Guaranteed (MINGNT_0_4_0_PCI)
Maximum Latency (MAXLAT_0_4_0_PCI)
Device Enable (DEVEN_0_4_0_PCI)
Capabilities A (CAPID0_A_0_4_0_PCI)
Capabilities B (CAPID0_B_0_4_0_PCI)
D6:F0 PCI Express* Controller Registers
Device ID and Vendor ID (ID)
Device Command (CMD)
Primary Status (PSTS)
Revision ID and Class Code (RID_CC)
Cache Line Size (CLS)
Primary Latency Timer (PLT)
Header Type (HTYPE)
Bus Numbers (BNUM_SLT)
I/O Base And Limit (IOBL)
Secondary Status (SSTS)
Memory Base And Limit (MBL)
Prefetchable Memory Base And Limit (PMBL)
Prefetchable Memory Base Upper 32 Bits (PMBU32)
Prefetchable Memory Limit Upper 32 Bits (PMLU32)
Capabilities List Pointer (CAPP)
Interrupt Information (INTR)
Bridge Control (BCTRL)
Capabilities List (CLIST)
PCI Express Capabilities (XCAP)
Capabilities Pointer (DCAP)
Device Control (DCTL)
Device Status (DSTS)
Link Capabilities (LCAP)
Link Control (LCTL)
Link Status (LSTS)
Slot Capabilities (SLCAP)
Slot Control (SLCTL)
Slot Status (SLSTS)
Root Control (RCTL)
Root Status (RSTS)
Device Capabilities 2 (DCAP2)
Device Control 2 (DCTL2)
Device Status 2 (DSTS2)
Link Capabilities 2 (LCAP2)
Link Control 2 (LCTL2)
Link Status 2 (LSTS2)
Slot Capabilities 2 (SLCAP2)
Slot Control 2 (SLCTL2)
Slot Status 2 (SLSTS2)
Message Signaled Interrupt Identifiers (MID)
Message Signaled Interrupt Message (MC)
Message Signaled Interrupt Message Address (MA)
Message Signaled Interrupt Message Data (MD)
Subsystem Vendor Capability (SVCAP)
Subsystem Vendor IDs (SVID)
Power Management Capability (PMCAP)
PCI Power Management Capabilities (PMC)
PCI Power Management Control (PMCS)
Channel Configuration (CCFG)
Advanced Error Extended (AECH)
Uncorrectable Error Status (UES)
Uncorrectable Error Mask (UEM)
Uncorrectable Error Severity (UEV)
Correctable Error Status (CES)
Correctable Error Mask (CEM)
Advanced Error Capabilities And Control (AECC)
Header Log (HL_DW1)
Header Log (HL_DW2)
Header Log (HL_DW3)
Header Log (HL_DW4)
Root Error Command (REC)
Root Error Status (RES)
Error Source Identification (ESID)
PTM Extended Capability Header (PTMECH)
PTM Capability Register (PTMCAPR)
PTM Control Register (PTMCTLR)
L1 Sub-States Extended Capability Header (L1SECH)
L1 Sub-States Capabilities (L1SCAP)
L1 Sub-States Control 1 (L1SCTL1)
L1 Sub-States Control 2 (L1SCTL2)
ACS Extended Capability Header (ACSECH)
ACS Capability Register (ACSCAPR)
ACS Control Register (ACSCTLR)
Port VC Capability Register 1 (PVCCR1)
Port VC Capability 2 (PVCC2)
Port VC Control (PVCC)
Port VC Status (PVCS)
Virtual Channel 0 Resource Capability (V0VCRC)
Virtual Channel 0 Resource Control (V0CTL)
Virtual Channel 0 Resource Status (V0STS)
Virtual Channel 1 Resource Capability (V1VCRC)
Virtual Channel 1 Resource Control (V1CTL)
Virtual Channel 1 Resource Status (V1STS)
DPC Extended Capability Header (DPCECH)
DPC Capability Register (DPCCAPR)
DPC Control Register (DPCCTLR)
DPC Status Register (DPCSR)
DPC Error Source ID Register (DPCESIDR)
RP PIO Status Register (RPPIOSR)
RP PIO Mask Register (RPPIOMR)
RP PIO Severity Register (RPPIOVR)
RP PIO SysError Register (RPPIOSER)
RP PIO Exception Register (RPPIOER)
RP PIO Header Log DW1 Register (RPPIOHLR_DW1)
RP PIO Header Log DW2 Register (RPPIOHLR_DW2)
RP PIO Header Log DW3 Register (RPPIOHLR_DW3)
RP PIO Header Log DW4 Register (RPPIOHLR_DW4)
Secondary PCI Express Extended Capability Header (SPEECH)
Link Control 3 (LCTL3)
Lane Error Status (LES)
Lane 0 And Lane 1 Equalization Control (L01EC)
Lane 2 And Lane 3 Equalization Control (L23EC)
Lane 4 And Lane 5 Equalization Control (L45EC)
Lane 6 And Lane 7 Equalization Control (L67EC)
Lane 8 And Lane 9 Equalization Control (L89EC)
Lane 10 And Lane 11 Equalization Control (L1011EC)
Lane 12 And Lane 13 Equalization Control (L1213EC)
Lane 14 And Lane 15 Equalization Control (L1415EC)
Data Link Feature Extended Capability Header (DLFECH)
Data Link Feature Capabilities Register (DLFCAP)
Data Link Feature Status Register (DLFSTS)
Physical Layer 16.0 GT/s Extended Capability Header (PL16GECH)
Physical Layer 16.0 GT/s Capability Register (PL16CAP)
Physical Layer 16.0 GT/s Control Register (PL16CTL)
Physical Layer 16.0 GT/s Status Register (PL16S)
Physical Layer 16.0 GT/s Local Data Parity Mismatch Status Register (PL16LDPMS)
Physical Layer 16.0 GT/s First Retimer Data Parity Mismatch Status Register (PL16FRDPMS)
Physical Layer 16.0 GT/s Second Retimer Data Parity Mismatch Status Register (PL16SRDPMS)
Physical Layer 16.0 GT/s Extra Status Register (PL16ES)
Physical Layer 16.0 GT/s Lane 01 Equalization Control Register (PL16L01EC)
Physical Layer 16.0 GT/s Lane 23 Equalization Control Register (PL16L23EC)
Physical Layer 16.0 GT/s Lane 45 Equalization Control Register (PL16L45EC)
Physical Layer 16.0 GT/s Lane 67 Equalization Control Register (PL16L67EC)
Physical Layer 16.0 GT/s Lane 89 Equalization Control Register (PL16L89EC)
Physical Layer 16.0 GT/s Lane 1011 Equalization Control Register (PL16L1011EC)
Physical Layer 16.0 GT/s Lane 1213 Equalization Control Register (PL16L1213EC)
Physical Layer 16.0 GT/s Lane 1415 Equalization Control Register (PL16L1415EC)
VNN Removal Control (VNNREMCTL)
VNN Removal Save And Restore Hardware Contexts 1 (VNNRSNRC1)
Physical Layer 16.0 GT/s Margining Extended Capability Header (PL16MECH)
Physical Layer 16.0 GT/s Margining Port Capabilities and Port Status (PL16MPCPS)
Physical Layer 16.0 GT/s Lane0 Margin Control and Status Register (PL16L0MCS)
Physical Layer 16.0 GT/s Lane1 Margin Control and Status Register (PL16L1MCS)
Physical Layer 16.0 GT/s Lane2 Margin Control and Status Register (PL16L2MCS)
Physical Layer 16.0 GT/s Lane3 Margin Control and Status Register (PL16L3MCS)
Physical Layer 16.0 GT/s Lane4 Margin Control and Status Register (PL16L4MCS)
Physical Layer 16.0 GT/s Lane5 Margin Control and Status Register (PL16L5MCS)
Physical Layer 16.0 GT/s Lane6 Margin Control and Status Register (PL16L6MCS)
Physical Layer 16.0 GT/s Lane7 Margin Control and Status Register (PL16L7MCS)
Physical Layer 16.0 GT/s Lane8 Margin Control and Status Register (PL16L8MCS)
Physical Layer 16.0 GT/s Lane9 Margin Control and Status Register (PL16L9MCS)
Physical Layer 16.0 GT/s Lane10 Margin Control and Status Register (PL16L10MCS)
Physical Layer 16.0 GT/s Lane11 Margin Control and Status Register (PL16L11MCS)
Physical Layer 16.0 GT/s Lane12 Margin Control and Status Register (PL16L12MCS)
Physical Layer 16.0 GT/s Lane13 Margin Control and Status Register (PL16L13MCS)
Physical Layer 16.0 GT/s Lane14 Margin Control and Status Register (PL16L14MCS)
Physical Layer 16.0 GT/s Lane15 Margin Control and Status Register (PL16L15MCS)
D8:F0 Gauss Newton Algorithm Registers
Device ID and Vendor ID (IDENTIFICATION)
Device Control (DCTRL)
Device Status (DSTS)
Revision ID and Class Code (RID_DLCO)
Cache Line Size (CLS)
Header Type (HTYPE)
Built-in Self Test (BIST)
GNA Base Address Low (GNABAL)
GNA Base Address High (GNABAH)
Subsystem Vendor ID (SSVI)
Subsystem ID (SSI)
Capabilities Pointers (CAPP)
Interrupt Line (INTL)
Interrupt Pin Register (INTP)
Min Grant And Min Latency Register (MINGNTLAT)
Override Configuration Control (OVRCFGCTL)
Message Signaled Interrupt Capability ID (MSICAPID)
Message Signaled Interrupt Message Control (MC)
Message Signaled Interrupt Message Address (MA)
Message Signaled Interrupt Message Data (MD)
D0i3 Capability ID (D0I3CAPID)
D0i3 Capability (D0I3CAP)
D0i3 Vendor Extended Capability Register (D0I3VSEC)
D0i3 SW LTR Pointer Register (D0I3SWLTRPTR)
D0i3 DevIdle Pointer Register (D0I3DEVIDLEPTR)
D0i3 DevIdle Power On Latency (D0I3DEVIDLEPOL)
D0i3 Power Control Enables Register (PCE)
Power Management Capability ID (PMCAPID)
Power Management Capability (PMCAP)
Power Management Control Status (PMCS)
FLR Capability ID (FLRCAPID)
FLR Capability Length And Version (FLRMISC)
FLR Control Register (FLRCTL)
FLR Status Register (FLRSTS)
Device Command (CMD) – Offset 4
Device Command
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 15:10 | 0h | RO | Reserved |
| 9 | 0x0 | RO | Fast Back to Back Enable (FBE) Reserved per PCI-Express spec. |
| 8 | 0x0 | RW | SERR# Enable (SEE) When set, enables the root port to generate an SERR# message when PSTS.SSE is set. |
| 7 | 0x0 | RO | Wait Cycle Control (WCC) Reserved per PCI-Express spec. |
| 6 | 0x0 | RW | Parity Error Response Enable (PERE) Indicates that the device is capable of reporting parity errors as a master on the backbone. |
| 5 | 0x0 | RO | VGA Palette Snoop (VGA_PSE) Reserved per PCI-Express spec. |
| 4 | 0x0 | RO | Memory Write and Invalidate Enable (MWIE) Reserved per PCI-Express spec. |
| 3 | 0x0 | RO | Special Cycle Enable (SCE) Reserved per PCI-Express and PCI bridge spec. |
| 2 | 0x1 | RO | Bus Master Enable (BME) When set, allows the root port to forward Memory and I/O Read/Write cycles onto the backbone from a PCI-Express device. |
| 1 | 0x1 | RO | Memory Space Enable (MSE) When set, memory cycles within the range specified by the memory base and limit registers can be forwarded to the PCI-Express device. When cleared, these memory cycles are master aborted on the backbone. |
| 0 | 0x0 | RO | I/O Space Enable (IOSE) When set, I/O cycles within the range specified by the I/O base and limit registers can be forwarded to the PCI-Express device. When cleared, these cycles are master aborted on the backbone.. |