82801BA datasheet(13/498 Pages) INTEL

13 / 498 page

82801BA ICH2 and 82801BAM ICH2-M

Datasheet

xiii

8.1.10 PBUS_NUM—Primary Bus Number Register

(HUB-PCI—D30:F0) ........................................................................8-6

8.1.11 SBUS_NUM—Secondary Bus Number Register

(HUB-PCI—D30:F0) ........................................................................8-6

8.1.12 SUB_BUS_NUM—Subordinate Bus Number Register

(HUB-PCI—D30:F0) ........................................................................8-6

8.1.13 SMLT—Secondary Master Latency Timer Register

(HUB-PCI—D30:F0) ........................................................................8-6

8.1.14 IOBASE—I/O Base Register (HUB-PCI—D30:F0) ..........................8-7

8.1.15 IOLIM—I/O Limit Register (HUB-PCI—D30:F0) ..............................8-7

8.1.16 SECSTS—Secondary Status Register (HUB-PCI—D30:F0)...........8-8

8.1.17 MEMBASE—Memory Base Register (HUB-PCI—D30:F0) .............8-9

8.1.18 MEMLIM—Memory Limit Register (HUB-PCI—D30:F0) .................8-9

8.1.19 PREF_MEM_BASE—Prefetchable Memory Base Register

(HUB-PCI—D30:F0) ........................................................................8-9

8.1.20 PREF_MEM_MLT—Prefetchable Memory Limit Register

(HUB-PCI—D30:F0) ......................................................................8-10

8.1.21 IOBASE_HI—I/O Base Upper 16 Bits Register

(HUB-PCI—D30:F0) ......................................................................8-10

8.1.22 IOLIM_HI—I/O Limit Upper 16 Bits Register

(HUB-PCI—D30:F0) ......................................................................8-10

8.1.23 INT_LINE—Interrupt Line Register (HUB-PCI—D30:F0) ..............8-10

8.1.24 BRIDGE_CNT—Bridge Control Register (HUB-PCI—D30:F0) .....8-11

8.1.25 BRIDGE_CNT2—Bridge Control Register 2

(HUB-PCI—D30:F0) ......................................................................8-11

8.1.26 CNF—ICH2 Configuration Register (HUB-PCI—D30:F0) .............8-12

8.1.27 MTT—Multi-Transaction Timer Register (HUB-PCI—D30:F0) ......8-12

8.1.28 PCI_MAST_STS—PCI Master Status Register

(HUB-PCI—D30:F0) ......................................................................8-13

8.1.29 ERR_CMD—Error Command Register (HUB-PCI—D30:F0) ........8-13

8.1.30 ERR_STS—Error Status Register (HUB-PCI—D30:F0)................8-14

LPC Interface Bridge Registers (D31:F0) ..................................................................9-1

9.1

PCI Configuration Registers (D31:F0) ..........................................................9-1

9.1.1

VID—Vendor ID Register (LPC I/F—D31:F0) ..................................9-2

9.1.2

DID—Device ID Register (LPC I/F—D31:F0) ..................................9-2

9.1.3

PCICMD—PCI COMMAND Register (LPC I/F—D31:F0) ................9-3

9.1.4

PCISTS—PCI Device Status (LPC I/F—D31:F0) ............................9-4

9.1.5

REVID—Revision ID Register (LPC I/F—D31:F0)...........................9-4

9.1.6

PI—Programming Interface (LPC I/F—D31:F0) ..............................9-5

9.1.7

SCC—Sub-Class Code Register (LPC I/F—D31:F0) ......................9-5

9.1.8

BCC—Base-Class Code Register (LPC I/F—D31:F0) ....................9-5

9.1.9

HEADTYP—Header Type Register (LPC I/F—D31:F0) ..................9-5

9.1.10 PMBASE—ACPI Base Address (LPC I/F—D31:F0)........................9-6

9.1.11 ACPI_CNTL—ACPI Control (LPC I/F—D31:F0)..............................9-6

9.1.12 BIOS_CNTL (LPC I/F—D31:F0) ......................................................9-7

9.1.13 TCO_CNTL—TCO Control (LPC I/F—D31:F0) ...............................9-7

9.1.14 GPIOBASE—GPIO Base Address (LPC I/F—D31:F0) ...................9-8

9.1.15 GPIO_CNTL—GPIO Control (LPC I/F—D31:F0) ............................9-8

9.1.16 PIRQ[n]_ROUT—PIRQ[A,B,C,D] Routing Control

(LPC I/F—D31:F0) ...........................................................................9-8

9.1.17 SERIRQ_CNTL—Serial IRQ Control (LPC I/F—D31:F0) ................9-9

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