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82801DB Datasheet, PDF (15/587 Pages) Intel Corporation – Intel 82801DB I/O Controller Hub 4 (ICH4) | |||
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12.1.26 LEG_EXT_CAPâUSB EHCI Legacy Support Extended Capability
Register (USB EHCIâD29:F7).......................................................428
12.1.27 LEG_EXT_CSâUSB EHCI Legacy Support Extended Control /
Status Register (USB EHCIâD29:F7)............................................428
12.1.28 SPECIAL_SMIâIntel Specific USB EHCI SMI Register
(USB EHCIâD29:F7) .....................................................................430
12.1.29 ACCESS_CNTLâAccess Control Register
(USB EHCIâD29:F7) .....................................................................431
12.1.30 HS_Ref_VâUSB HS Reference Voltage Register
(USB EHCIâD29:F7) .....................................................................431
12.2 Memory-Mapped I/O Registers....................................................................432
12.2.1 Host Controller Capability Registers ...............................................432
12.2.2 Host Controller Operational Registers ............................................435
12.2.3 USB 2.0-Based Debug Port Register..............................................447
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SMBus Controller Registers (D31:F3) ......................................................451
13.1 PCI Configuration Registers (SMBUSâD31:F3).........................................451
13.1.1 VIDâVendor Identification Register (SMBUSâD31:F3)................451
13.1.2 DIDâDevice Identification Register (SMBUSâD31:F3) ................451
13.1.3 CMDâCommand Register (SMBUSâD31:F3)..............................452
13.1.4 STAâDevice Status Register (SMBUSâD31:F3) .........................452
13.1.5 REVIDâRevision ID Register (SMBUSâD31:F3) .........................453
13.1.6 SCCâSub Class Code Register (SMBUSâD31:F3) .....................453
13.1.7 BCCâBase Class Code Register (SMBUSâD31:F3) ...................453
13.1.8 SMB_BASEâSMBUS Base Address Register
(SMBUSâD31:F3) .........................................................................453
13.1.9 SVID â Subsystem Vendor ID (SMBUSâD31:F2/F4) ..................454
13.1.10 SID â Subsystem ID (SMBUSâD31:F2/F4) .................................454
13.1.11 INTR_LNâInterrupt Line Register (SMBUSâD31:F3) ..................454
13.1.12 INTR_PNâInterrupt Pin Register (SMBUSâD31:F3) ...................454
13.1.13 HOSTCâHost Configuration Register (SMBUSâD31:F3) ............455
13.2 SMBUS I/O Registers ..................................................................................456
13.2.1 HST_STSâHost Status Register ...................................................456
13.2.2 HST_CNTâHost Control Register .................................................458
13.2.3 HST_CMDâHost Command Register............................................459
13.2.4 XMIT_SLVAâTransmit Slave Address Register ............................459
13.2.5 HST_D0âData 0 Register..............................................................459
13.2.6 HST_D1âData 1 Register..............................................................460
13.2.7 Host_BLOCK_DBâHost Block Data Byte Register .......................460
13.2.8 PECâPacket Error Check (PEC) Register.....................................460
13.2.9 RCV_SLVAâReceive Slave Address Register ..............................461
13.2.10 SLV_DATAâReceive Slave Data Register ....................................461
13.2.11 AUX_STSâAuxiliary Status Register .............................................461
13.2.12 AUX_CTLâAuxiliary Control Register............................................462
13.2.13 SMLINK_PIN_CTLâSMLink Pin Control Register .........................462
13.2.14 SMBUS_PIN_CTLâSMBUS Pin Control Register .........................463
13.2.15 SLV_STSâSlave Status Register ..................................................463
13.2.16 SLV_CMDâSlave Command Register ..........................................464
13.2.17 NOTIFY_DADDRâNotify Device Address .....................................464
13.2.18 NOTIFY_DLOWâNotify Data Low Byte Register ..........................465
13.2.19 NOTIFY_DHIGHâNotify Data High Byte Register .........................465
Intel® 82801DB ICH4 Datasheet
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