USB xHCI MMIO Registers

Intel® Core™ Ultra Processors for Edge (PS Series) IOE-P I/O Registers

ID	Date	Version	Classification
819325	04/02/2024	001	Public

Summary of Bus: (), Device: (), Function: (), Type: (MEM)

Offset	Size (Bytes)	Register Name (Register Symbol)	Scope	Default Value
0h	1	Capability Registers Length (CAPLENGTH)	Package	00h
2h	2	Host Controller Interface Version Number (HCIVERSION)	Package	0000h
4h	4	Structural Parameters 1 (HCSPARAMS1)	Package	00000000h
8h	4	Structural Parameters 2 (HCSPARAMS2)	Package	00000000h
ch	4	Structural Parameters 3 (HCSPARAMS3)	Package	00000000h
10h	4	Capability Parameters (HCCPARAMS)	Package	00000000h
14h	4	Doorbell Offset (DBOFF)	Package	00000000h
18h	4	Runtime Register Space Offset (RTSOFF)	Package	00000000h
80h	4	USB Command (USBCMD)	Package	00000000h
84h	4	USB Status (USBSTS)	Package	00000000h
88h	4	Page Size (PAGESIZE)	Package	00000000h
94h	4	Device Notification Control (DNCTRL)	Package	00000000h
98h	4	Command Ring Low (CRCR_LO)	Package	00000000h
9ch	4	Command Ring High (CRCR_HI)	Package	00000000h
b0h	4	Device Context Base Address Array Pointer Low (DCBAAP_LO)	Package	00000000h
b4h	4	Device Context Base Address Array Pointer High (DCBAAP_HI)	Package	00000000h
b8h	4	Configure Reg (CONFIG)	Package	00000000h
480h	4	Port Status AndControl USB2 (PORTSC1)	Package	00000000h
484h	4	Port Power Management Status Aand Control USB2 (PORTPMSC1)	Package	00000000h
48ch	4	Port X Hardware LPM Control Register (PORTHLPMC1)	Package	00000000h
490h	4	Port Status And Control USB3 (PORTSC2)	Package	00000000h
494h	4	Port Power Management Status And Control USB3 (PORTPMSC2)	Package	00000000h
498h	4	USB3 Port Link Info (PORTLI2)	Package	00000000h
4a0h	4	Port Status And Control USB3 (PORTSC3)	Package	00000000h
4a4h	4	Port Power Management Status And Control USB3 (PORTPMSC3)	Package	00000000h
4a8h	4	USB3 Port Link Info (PORTLI3)	Package	00000000h
4b0h	4	Port Status And Control USB3 (PORTSC4)	Package	000002A0h
4b4h	4	Port Power Management Status And Control USB3 (PORTPMSC4)	Package	00000000h
4b8h	4	USB3 Port Link Info (PORTLI4)	Package	00000000h
4c0h	4	Port Status And Control USB3 (PORTSC5)	Package	000002A0h
4c4h	4	Port Power Management Status And Control USB3 (PORTPMSC5)	Package	00000000h
4c8h	4	USB3 Port Link Info (PORTLI5)	Package	00000000h
2000h	4	Microframe Index (RTMFINDEX)	Package	00000000h
2020h	4	Interrupter Management (IMAN0)	Package	00000000h
2024h	4	Interrupter Moderation (IMOD0)	Package	00000000h
2028h	4	Event Ring Segment Table Size (ERSTSZ0)	Package	00000000h
2030h	4	Event Ring Segment Table Base Address Low (ERSTBA_LO0)	Package	00000000h
2034h	4	Event Ring Segment Table Base Address High (ERSTBA_HI0)	Package	00000000h
2038h	4	Event Ring Dequeue Pointer Low (ERDP_LO0)	Package	00000000h
203ch	4	Event Ring Dequeue Pointer High (ERDP_HI0)	Package	00000000h
2040h	4	Interrupter Management (IMAN1)	Package	00000000h
2044h	4	Interrupter Moderation (IMOD1)	Package	00000000h
2048h	4	Event Ring Segment Table Size (ERSTSZ1)	Package	00000000h
2050h	4	Event Ring Segment Table Base Address Low (ERSTBA_LO1)	Package	00000000h
2054h	4	Event Ring Segment Table Base Address High (ERSTBA_HI1)	Package	00000000h
2058h	4	Event Ring Dequeue Pointer Low (ERDP_LO1)	Package	00000000h
205ch	4	Event Ring Dequeue Pointer High (ERDP_HI1)	Package	00000000h
2060h	4	Interrupter Management (IMAN2)	Package	00000000h
2064h	4	Interrupter Moderation (IMOD2)	Package	00000000h
2068h	4	Event Ring Segment Table Size (ERSTSZ2)	Package	00000000h
2070h	4	Event Ring Segment Table Base Address Low (ERSTBA_LO2)	Package	00000000h
2074h	4	Event Ring Segment Table Base Address High (ERSTBA_HI2)	Package	00000000h
2078h	4	Event Ring Dequeue Pointer Low (ERDP_LO2)	Package	00000000h
207ch	4	Event Ring Dequeue Pointer High (ERDP_HI2)	Package	00000000h
2080h	4	Interrupter Management (IMAN3)	Package	00000000h
2084h	4	Interrupter Moderation (IMOD3)	Package	00000000h
2088h	4	Event Ring Segment Table Size (ERSTSZ3)	Package	00000000h
2090h	4	Event Ring Segment Table Base Address Low (ERSTBA_LO3)	Package	00000000h
2094h	4	Event Ring Segment Table Base Address High (ERSTBA_HI3)	Package	00000000h
2098h	4	Event Ring Dequeue Pointer Low (ERDP_LO3)	Package	00000000h
209ch	4	Event Ring Dequeue Pointer High (ERDP_HI3)	Package	00000000h
20a0h	4	Interrupter Management (IMAN4)	Package	00000000h
20a4h	4	Interrupter Moderation (IMOD4)	Package	00000000h
20a8h	4	Event Ring Segment Table Size (ERSTSZ4)	Package	00000000h
20b0h	4	Event Ring Segment Table Base Address Low (ERSTBA_LO4)	Package	00000000h
20b4h	4	Event Ring Segment Table Base Address High (ERSTBA_HI4)	Package	00000000h
20b8h	4	Event Ring Dequeue Pointer Low (ERDP_LO4)	Package	00000000h
20bch	4	Event Ring Dequeue Pointer High (ERDP_HI4)	Package	00000000h
20c0h	4	Interrupter Management (IMAN5)	Package	00000000h
20c4h	4	Interrupter Moderation (IMOD5)	Package	00000000h
20c8h	4	Event Ring Segment Table Size (ERSTSZ5)	Package	00000000h
20d0h	4	Event Ring Segment Table Base Address Low (ERSTBA_LO5)	Package	00000000h
20d4h	4	Event Ring Segment Table Base Address High (ERSTBA_HI5)	Package	00000000h
20d8h	4	Event Ring Dequeue Pointer Low (ERDP_LO5)	Package	00000000h
20dch	4	Event Ring Dequeue Pointer High (ERDP_HI5)	Package	00000000h
20e0h	4	Interrupter Management (IMAN6)	Package	00000000h
20e4h	4	Interrupter Moderation (IMOD6)	Package	00000000h
20e8h	4	Event Ring Segment Table Size (ERSTSZ6)	Package	00000000h
20f0h	4	Event Ring Segment Table Base Address Low (ERSTBA_LO6)	Package	00000000h
20f4h	4	Event Ring Segment Table Base Address High (ERSTBA_HI6)	Package	00000000h
20f8h	4	Event Ring Dequeue Pointer Low (ERDP_LO6)	Package	00000000h
20fch	4	Event Ring Dequeue Pointer High (ERDP_HI6)	Package	00000000h
2100h	4	Interrupter Management (IMAN7)	Package	00000000h
2104h	4	Interrupter Moderation (IMOD7)	Package	00000000h
2108h	4	Event Ring Segment Table Size (ERSTSZ7)	Package	00000000h
2110h	4	Event Ring Segment Table Base Address Low (ERSTBA_LO7)	Package	00000000h
2114h	4	Event Ring Segment Table Base Address High (ERSTBA_HI7)	Package	00000000h
2118h	4	Event Ring Dequeue Pointer Low (ERDP_LO7)	Package	00000000h
211ch	4	Event Ring Dequeue Pointer High (ERDP_HI7)	Package	00000000h
3000h	4	Door Bell (DB0)	Package	00000000h
3004h	4	Door Bell (DB1)	Package	00000000h
3008h	4	Door Bell (DB2)	Package	00000000h
300ch	4	Door Bell (DB3)	Package	00000000h
3010h	4	Door Bell (DB4)	Package	00000000h
3014h	4	Door Bell (DB5)	Package	00000000h
3018h	4	Door Bell (DB6)	Package	00000000h
301ch	4	Door Bell (DB7)	Package	00000000h
3020h	4	Door Bell (DB8)	Package	00000000h
3024h	4	Door Bell (DB9)	Package	00000000h
3028h	4	Door Bell (DB10)	Package	00000000h
302ch	4	Door Bell (DB11)	Package	00000000h
3030h	4	Door Bell (DB12)	Package	00000000h
3034h	4	Door Bell (DB13)	Package	00000000h
3038h	4	Door Bell (DB14)	Package	00000000h
303ch	4	Door Bell (DB15)	Package	00000000h
3040h	4	Door Bell (DB16)	Package	00000000h
3044h	4	Door Bell (DB17)	Package	00000000h
3048h	4	Door Bell (DB18)	Package	00000000h
304ch	4	Door Bell (DB19)	Package	00000000h
3050h	4	Door Bell (DB20)	Package	00000000h
3054h	4	Door Bell (DB21)	Package	00000000h
3058h	4	Door Bell (DB22)	Package	00000000h
305ch	4	Door Bell (DB23)	Package	00000000h
3060h	4	Door Bell (DB24)	Package	00000000h
3064h	4	Door Bell (DB25)	Package	00000000h
3068h	4	Door Bell (DB26)	Package	00000000h
306ch	4	Door Bell (DB27)	Package	00000000h
3070h	4	Door Bell (DB28)	Package	00000000h
3074h	4	Door Bell (DB29)	Package	00000000h
3078h	4	Door Bell (DB30)	Package	00000000h
307ch	4	Door Bell (DB31)	Package	00000000h
3080h	4	Door Bell (DB32)	Package	00000000h
3084h	4	Door Bell (DB33)	Package	00000000h
3088h	4	Door Bell (DB34)	Package	00000000h
308ch	4	Door Bell (DB35)	Package	00000000h
3090h	4	Door Bell (DB36)	Package	00000000h
3094h	4	Door Bell (DB37)	Package	00000000h
3098h	4	Door Bell (DB38)	Package	00000000h
309ch	4	Door Bell (DB39)	Package	00000000h
30a0h	4	Door Bell (DB40)	Package	00000000h
30a4h	4	Door Bell (DB41)	Package	00000000h
30a8h	4	Door Bell (DB42)	Package	00000000h
30ach	4	Door Bell (DB43)	Package	00000000h
30b0h	4	Door Bell (DB44)	Package	00000000h
30b4h	4	Door Bell (DB45)	Package	00000000h
30b8h	4	Door Bell (DB46)	Package	00000000h
30bch	4	Door Bell (DB47)	Package	00000000h
30c0h	4	Door Bell (DB48)	Package	00000000h
30c4h	4	Door Bell (DB49)	Package	00000000h
30c8h	4	Door Bell (DB50)	Package	00000000h
30cch	4	Door Bell (DB51)	Package	00000000h
30d0h	4	Door Bell (DB52)	Package	00000000h
30d4h	4	Door Bell (DB53)	Package	00000000h
30d8h	4	Door Bell (DB54)	Package	00000000h
30dch	4	Door Bell (DB55)	Package	00000000h
30e0h	4	Door Bell (DB56)	Package	00000000h
30e4h	4	Door Bell (DB57)	Package	00000000h
30e8h	4	Door Bell (DB58)	Package	00000000h
30ech	4	Door Bell (DB59)	Package	00000000h
30f0h	4	Door Bell (DB60)	Package	00000000h
30f4h	4	Door Bell (DB61)	Package	00000000h
30f8h	4	Door Bell (DB62)	Package	00000000h
30fch	4	Door Bell (DB63)	Package	00000000h
3100h	4	Door Bell (DB64)	Package	00000000h
8000h	4	XECP SUPP USB2_0 (XECP_SUPP_USB2_0)	Package	00000000h
8004h	4	XECP SUPP USB2_1 (XECP_SUPP_USB2_1)	Package	00000000h
8008h	4	XECP SUPP USB2_2 (XECP_SUPP_USB2_2)	Package	00000000h
800ch	4	XECP SUPP USB3_3 (XECP_SUPP_USB2_3)	Package	00000000h
8010h	4	XECP SUPP USB2_4 Full Speed (XECP_SUPP_USB2_4)	Package	00000000h
8014h	4	XECP_SUPP USB2_5 Low Speed (XECP_SUPP_USB2_5)	Package	00000000h
8018h	4	XECP SUPP USB2_6 High Speed (XECP_SUPP_USB2_6)	Package	00000000h
8020h	4	XECP SUPP USB3_0 (XECP_SUPP_USB3_0)	Package	00000000h
8024h	4	XECP SUPP USB3_1 (XECP_SUPP_USB3_1)	Package	00000000h
8028h	4	XECP SUPP USB3_2 (XECP_SUPP_USB3_2)	Package	00000000h
802ch	4	XECP SUPP USB3_3 (XECP_SUPP_USB3_3)	Package	00000000h
8030h	4	XECP SUPP USB3_4 (XECP_SUPP_USB3_4)	Package	00000000h
8034h	4	XECP SUPP USB3_5 (XECP_SUPP_USB3_5)	Package	00000000h
8038h	4	XECP SUPP USB3_6 (XECP_SUPP_USB3_6)	Package	00000000h
803ch	4	XECP SUPP USB3_7 (XECP_SUPP_USB3_7)	Package	00000000h
8094h	4	Host Control Scheduler (HOST_CTRL_SCH_REG)	Package	00000000h
80a4h	4	Power Management Control (PMCTRL_REG)	Package	00000000h
80b0h	4	Host Controller Misc Reg (HOST_CTRL_MISC_REG)	Package	00000000h
80b4h	4	Host Controller Misc Reg2 (HOST_CTRL_MISC_REG2)	Package	00000000h
80b8h	4	Super Speed Port Enable (SSPE_REG)	Package	00000000h
80e0h	4	AUX Power Management Control (AUX_CTRL_REG1)	Package	00000000h
80ech	4	SuperSpeed Port Link Control (HOST_CTRL_PORT_LINK_REG)	Package	00000000h
80f0h	4	USB2 Port Link Control 1 (USB2_LINK_MGR_CTRL_REG1)	Package	00000000h
80f4h	4	USB2 Port Link Control 2 (USB2_LINK_MGR_CTRL_REG2)	Package	00000000h
80f8h	4	USB2 Port Link Control 3 (USB2_LINK_MGR_CTRL_REG3)	Package	00000000h
80fch	4	USB2 Port Link Control 4 (USB2_LINK_MGR_CTRL_REG4)	Package	00000000h
8140h	4	Power Scheduler Control-0 (PWR_SCHED_CTRL0)	Package	00000000h
8144h	4	Power Scheduler Control-1 (PWR_SCHED_CTRL2)	Package	00000000h
8154h	4	AUX Power Management Control (AUX_CTRL_REG2)	Package	00000000h
8164h	4	USB2 PHY Power Management Control (USB2_PHY_PMC)	Package	00000000h
816ch	4	XHCI Aux Clock Control Register (XHCI_AUX_CCR)	Package	00000000h
8174h	4	XHC Latency Tolerance Parameters LTV Control (XLTP_LTV1)	Package	00000000h
8178h	4	XHC Latency Tolerance Parameters LTV Control 2 (XLTP_LTV2)	Package	00000000h
817ch	4	XHC Latency Tolerance Parameters High Idle Time Control (XLTP_HITC)	Package	00000000h
8180h	4	XHC Latency Tolerance Parameters Medium Idle Time Control (XLTP_MITC)	Package	00000000h
8184h	4	XHC Latency Tolerance Parameters Low Idle Time Control (XLTP_LITC)	Package	00000000h
81b8h	4	LFPS On Count (LFPSONCOUNT_REG)	Package	00000000h
81c4h	4	USB2 Power Management Control (USB2PMCTRL_REG)	Package	00000000h
846ch	4	USB Legacy Support Capability (USBLEGSUP)	Package	00000000h
8470h	4	USB Legacy Support Control Status (USBLEGCTLSTS)	Package	00000000h
84f4h	4	Port Disable Override Capability Register (PDO_CAPABILITY)	Package	00000000h
8604h	2	Command Reg (CMD_MMIO)	Package	0000h
8606h	2	Device Status (STS_MMIO)	Package	0000h
8608h	1	Revision ID (RID_MMIO)	Package	00h
8609h	1	Programming Interface (PI_MMIO)	Package	00h
860ah	1	Sub Class Code (SCC_MMIO)	Package	00h
860bh	1	Base Class Code (BCC_MMIO)	Package	00h
860ch	1	Cache Line Size (CLS_MMIO)	Package	00h
860dh	1	Master Latency Timer (MLT_MMIO)	Package	00h
860eh	1	Header Type (HT_MMIO)	Package	00h
8610h	8	Memory Base Address (MBAR_MMIO)	Package	0000000000000000h
862ch	2	USB Subsystem Vendor ID (SSVID_MMIO)	Package	0000h
862eh	2	USB Subsystem ID (SSID_MMIO)	Package	0000h
8634h	1	Capabilities Pointer (CAP_PTR_MMIO)	Package	00h
863ch	1	Interrupt Line (ILINE_MMIO)	Package	00h
863dh	1	Interrupt Pin (IPIN_MMIO)	Package	00h
8660h	1	Serial Bus Release Number (SBRN_MMIO)	Package	00h
8661h	1	Frame Length Adjustment (FLADJ_MMIO)	Package	00h
8662h	1	Best Effort Service Latency (BESL_MMIO)	Package	00h
8670h	1	PCI Power Management Capability ID (PM_CID_MMIO)	Package	00h
8671h	1	Next Item Pointer 1 (PM_NEXT_MMIO)	Package	00h
8672h	2	Power Management Capabilities (PM_CAP_MMIO)	Package	0000h
8674h	2	Power Management Control/Status (PM_CS_MMIO)	Package	0000h
8680h	1	Message Signaled Interrupt CID (MSI_CID_MMIO)	Package	00h
8681h	1	Next Item Pointer (MSI_NEXT_MMIO)	Package	00h
8682h	2	Message Signaled Interrupt Message Control (MSI_MCTL_MMIO)	Package	0000h
8684h	4	Message Signaled Interrupt Message Address (MSI_MAD_MMIO)	Package	00000000h
8688h	4	Message Signaled Interrupt Upper Address (MSI_MUAD_MMIO)	Package	00000000h
868ch	2	Message Signaled Interrupt Message Data (MSI_MD_MMIO)	Package	0000h
86a4h	4	High Speed Configuration 2 (HSCFG2_MMIO)	Package	00000000h
8700h	4	Debug Capability ID Register (DCID)	Package	00000000h
8704h	4	Debug Capability Doorbell Register (DCDB)	Package	00000000h
8708h	4	Debug Capability Event Ring Segment Table Size Register (DCERSTSZ)	Package	00000000h
8710h	8	Debug Capability Event Ring Segment Table Base Address Register (DCERSTBA)	Package	0000000000000000h
8718h	8	Debug Capability Event Ring Dequeue Pointer Register (DCERDP)	Package	0000000000000000h
8720h	4	Debug Capability Control Register (DCCTRL)	Package	00000000h
8724h	4	Debug Capability Status Register (DCST)	Package	00000000h
8728h	4	Debug Capability Port Status And Control Register (DCPORTSC)	Package	00000000h
8730h	8	Debug Capability Context Pointer Register (DCCP)	Package	0000000000000000h
8800h	4	Fuse and Strap Mirror Capability Register (FUSE_AND_STRAP_MIRROR_CAP_REG)	Package	00000000h
8e10h	4	GLOBAL TIME SYNC CAP REG (GLOBAL_TIME_SYNC_CAP_REG)	Package	00000000h
8e14h	4	GLOBAL TIME SYNC CTRL REG (GLOBAL_TIME_SYNC_CTRL_REG)	Package	00000000h
8e18h	4	MICROFRAME TIME REG (MICROFRAME_TIME_REG)	Package	00000000h
8e20h	4	Global Time Value (Low Register) (GLOBAL_TIME_LOW_REG)	Package	00000000h
8e24h	4	GLOBAL TIME HI REG (GLOBAL_TIME_HI_REG)	Package	00000000h
8e60h	4	Dublin HOST_CTRL_USB3_LOCAL_LPBK_RPTR (HOST_CTRL_USB3_LOCAL_LPBK_RPTR)	Package	00000000h
8ec8h	4	Host Ctrl Usb3 Master Loopback Register (HOST_CTRL_USB3_MSTR_LPBK)	Package	00000000h
8ecch	4	Host Ctrl Usb3 Blr Comp Register (HOST_CTRL_USB3_BLR_COMP)	Package	00000000h
8ed0h	4	Host Ctrl Ssp Dis Register (HOST_CTRL_SSP_DIS)	Package	00000000h
90a4h	4	XHCI USB2 Overcurrent Pin Mapping (U2OCM1)	Package	00000000h
90a8h	4	XHCI USB2 Overcurrent Pin Mapping (U2OCM2)	Package	00000000h
90ach	4	XHCI USB2 Overcurrent Pin Mapping (U2OCM3)	Package	00000000h
90b0h	4	XHCI USB2 Overcurrent Pin Mapping (U2OCM4)	Package	00000000h
9124h	4	XHCI USB3 Overcurrent Pin Mapping (U3OCM1)	Package	00000000h
9128h	4	XHCI USB3 Overcurrent Pin Mapping (U3OCM2)	Package	00000000h
a004h	4	SAI Policy Capability Register (SAI_POLICY_CAP_REG)	Package	00000000h