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System memory map specifications, System interrupt specifications – HP PAVILION DV8 User Manual

Page 106

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6–4

Maintenance and Service Guide

Specifications

System memory map specifications

System interrupt specifications

Size Memory

address

System

function

640 KB

00000000–0009FFFF

Base memory

128 KB

000A0000–000BFFFF

Video memory

64 KB

000C0000–000CFFFF

Video BIOS

64 KB

000E8000–000FFFFF

System BIOS

00100000–XFFFFFFF

Extended memory (based on
memory installed)

(X+1)0000000–FEDFFFFF

PCI bus

FED00000–FED003FF

High-precision event timer

FEE01000–FFFFFFFF PCI

bus

Hardware IRQ

System function

IRQ0

System timer

IRQ1

Standard 101-/102-key or Microsoft natural keyboard

IRQ8

System CMOS/real-time clock

IRQ12

Synaptics PS/2 TouchPad

IRQ13

Numeric data processor

IRQ16

Intel ICH9 family USB universal host controller 2937

Mobile Intel 5 Series express chipset family

IRQ17*

High-definition audio controller
Intel ICH9 family USB universal host controller 2938

Marvell Yukon 88E8072 PCIE-gigabit Ethernet controller

IRQ18

Intel ICH9 family USB universal host controller 2939
Intel ICH9 family USB universal host controller 2936

IRQ19

Intel ICH9 family USB2 enhanced controller 293C

IRQ20

Intel ICH9 family USB2 enhanced controller 293A
Intel ICH9 family USB universal host controller 2934

IRQ21

Intel ICH9M-E/M SATA AHCI controller

IRQ22

Intel ICH9 family USB universal host controller 2935

*Default configuration; audio possible configurations are IRQ5, IRQ7, IRQ9, IRQ10, or none.

PC Cards may assert IRQ3, IRQ4, IRQ5, IRQ7, IRQ9, IRQ10, IRQ11, or IRQ15. Either the infrared or the serial port
may assert IRQ3 or IRQ4.

For operating systems after Windows 2000, APIC (advanced programming interrupt controller) is used.