82801AB datasheet(13/414 Pages) INTEL

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82801AA and 82801AB

Datasheet

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8.5

Advanced Interrupt Controller (APIC) .........................................................8-39

8.5.1

APIC Register Map ........................................................................8-39

8.5.2

IND—Index Register ......................................................................8-39

8.5.3

DAT—Data Register ......................................................................8-40

8.5.4

ID—Identification Register .............................................................8-40

8.5.5

VER—Version Register .................................................................8-40

8.5.6

ARBID—Arbitration ID Register .....................................................8-41

8.5.7

Redirection Table...........................................................................8-41

8.5.8

IRQPA—IRQ Pin Assertion Register .............................................8-43

8.5.9

EOIR—EOI Register ......................................................................8-43

8.6

Real Time Clock Registers .........................................................................8-44

8.6.1

I/O Register Address Map..............................................................8-44

8.6.2

Indexed Registers ..........................................................................8-45

8.6.2.1

RTC_REGA—Register A................................................8-46

8.6.2.2

RTC_REGB—Register B (General Configuration) .........8-47

8.6.2.3

RTC_REGC—Register C (Flag Register) ......................8-48

8.6.2.4

RTC_REGD—Register D (Flag Register) ......................8-48

8.7

Processor Interface Registers.....................................................................8-49

8.7.1

NMI_SC—NMI Status and Control Register ..................................8-49

8.7.2

NMI_EN—NMI Enable (and Real Time Clock Index) ....................8-50

8.7.3

PORT92—Fast A20 and Init Register............................................8-50

8.7.4

COPROC_ERR—Coprocessor Error Register ..............................8-50

8.7.5

RST_CNT—Reset Control Register ..............................................8-51

8.8

Power Management Registers (D31:F0) ....................................................8-52

8.8.1

Power Management PCI Configuration Registers (D31:F0) ..........8-52

8.8.1.1

GEN_PMCON_1—General PM Configuration 1

8.8.1.2

GEN_PMCON_2—General PM Configuration 2

8.8.1.3

GEN_PMCON_3—General PM Configuration 3

8.8.1.4

GPI_ROUT—GPI Routing Control Register

(PM—D31:F0) ................................................................8-54

8.8.1.5

IO_MON_RNG1—IO Monitor Range 1 Register

(PM—D31:F0) ................................................................8-54

8.8.1.6

IO_MON_RNG2—IO Monitor Range 2 Register

(PM—D31:F0) ................................................................8-55

8.8.1.7

IO_MON_MSK—IO Monitor Range Mask Register

(PM—D31:F0) ................................................................8-55

8.8.2

APM I/O Decode ............................................................................8-56

8.8.2.1

APM_CNT—Advanced Power Management

Control Port Register ......................................................8-56

8.8.2.2

APM_STS—Advanced Power Management

Status Port Register .......................................................8-56

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