82801BA ICH2
Datasheet
xvii
11
USB Controller Registers.........................................................................................11-1
11.1
PCI Configuration Registers (D31:F2/F4)...................................................11-1
11.1.1 VID—Vendor Identification Register (USB—D31:F2/F4)...............11-1
11.1.2 DID—Device Identification Register (USB—D31:F2/F4) ...............11-2
11.1.3 CMD—Command Register (USB—D31:F2/F4).............................11-2
11.1.4 STA—Device Status Register (USB—D31:F2/F4) ........................11-3
11.1.5 RID—Revision Identification Register (USB—D31:F2/F4) ............11-3
11.1.6 PI—Programming Interface (USB—D31:F2/F4)............................11-3
11.1.7 SCC—Sub Class Code Register (USB—D31:F2/F4)....................11-4
11.1.8 BCC—Base Class Code Register (USB—D31:F2/F4) ..................11-4
11.1.9 BASE—Base Address Register (USB—D31:F2/F4)......................11-4
11.1.10 SVID—Subsystem Vendor ID (USB—D31:F2/F4).........................11-4
11.1.11 SID—Subsystem ID (USB—D31:F2/F4)........................................11-5
11.1.12 INTR_LN—Interrupt Line Register (USB—D31:F2/F4) .................11-5
11.1.13 INTR_PN—Interrupt Pin Register (USB—D31:F2/F4)...................11-5
11.1.14 SB_RELNUM—Serial Bus Release Number Register
(USB—D31:F2/F4).........................................................................11-5
11.1.15 uSB_LEGKEY—USB Legacy Keyboard/Mouse Control
Register (USB—D31:F2/F4) ..........................................................11-6
11.1.16 USB_RES—USB Resume Enable Register
(USB—D31:F2/F4).........................................................................11-7
11.2
USB I/O Registers.......................................................................................11-8
11.2.1 USBCMD—USB Command Register ............................................11-8
11.2.2 USBSTA—USB Status Register..................................................11-11
11.2.3 USBINTR—Interrupt Enable Register..........................................11-12
11.2.4 FRNUM—Frame Number Register..............................................11-12
11.2.5 FRBASEADD—Frame List Base Address...................................11-13
11.2.6 SOFMOD—Start of Frame Modify Register.................................11-13
11.2.7 PORTSC[0,1]—Port Status and Control Register........................11-14
12
SMBus Controller Registers (D31:F3) .....................................................................12-1
12.1
PCI Configuration Registers (SMBUS—D31:F3)........................................12-1
12.1.1 VID—Vendor Identification Register (SMBUS—D31:F3)...............12-1
12.1.2 DID—Device Identification Register (SMBUS—D31:F3)...............12-1
12.1.3 CMD—Command Register (SMBUS—D31:F3).............................12-2
12.1.4 STA—Device Status Register (SMBUS—D31:F3) ........................12-2
12.1.5 SCC—Sub Class Code Register (SMBUS—D31:F3)....................12-3
12.1.6 BCC—Base Class Code Register (SMBUS—D31:F3)..................12-3
12.1.7 SMB_BASE—SMBus Base Address Register
(SMBUS—D31:F3) ........................................................................12-3
12.1.8 SVID—Subsystem Vendor ID (SMBUS—D31:F2/F4) ...................12-3
12.1.9 SID—Subsystem ID (SMBUS—D31:F2/F4) ..................................12-4
12.1.10 INTR_LN—Interrupt Line Register (SMBUS—D31:F3) .................12-4
12.1.11 INTR_PN—Interrupt Pin Register (SMBUS—D31:F3) ..................12-4
12.1.12 HOSTC—Host Configuration Register (SMBUS—D31:F3)...........12-4
12.2
SMBus I/O Registers ..................................................................................12-5
12.2.1 HST_STS—Host Status Register ..................................................12-6
12.2.2 HST_CNT—Host Control Register ................................................12-7
12.2.3 HST_CMD—Host Command Register...........................................12-8
12.2.4 XMIT_SLVA—Transmit Slave Address Register...........................12-8
12.2.5 HST_D0—Data 0 Register.............................................................12-8
12.2.6 HST_D1—Data 1 Register.............................................................12-8
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