Hardware Configuration And Specification; Memory Address Map; Interrupt Channel Assignment - Acer Extensa 500 Service Manual

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Hardware Configuration and Specification

Memory Address Map

Memory Address
00000000-0009FFFF
000A0000-000BFFFF
000C0000-000C9FFF
000CA000-000CBFFF
000E0000-000FFFFF
00100000-top limited
04301000-04301FFF
04302000-04302FFF
0430000-04300FFFF
FFFF0000-FFFFFFFF

Interrupt Channel Assignment

Interrupt Channel
NMI
IRQ0
IRQ1
IRQ2
IRQ3
IRQ4
IRQ5
IRQ6
IRQ7
IRQ8
IRQ9
IRQ10
IRQ11
IRQ12
IRQ13
IRQ14
IRQ15
Chapter 1
Size
640 KB
128 KB
40 KB
8 KB
128 KB
--
4 KB
4 KB
64 KB
64 KB
System errors
System timer
Keyboard
Cascade
Modem or Audio (optional)
COM1 or Modem (optional)
Audio or LPT2 (optional)
Floppy
LPT1 or Audio (optional) or Modem (optional)
Real time clock
Card bus / ACPI or Audio (optional)
USB or Audio (optional) or Modem (optional)
Audio (optional) or Modem (optional)
PS2 pointing device
Numeric data processor
1st EIDE device (hard disk)
2nd EIDE device (CD-ROM drive)
Function
Base memory
Video memory
Video BIOS
I/O ROM
System BIOS
Extended (DIMM) memory
PCMCIA controller (slot 1)
PCMCIA controller (slot 2)
USB controller
System board extension for
PnP BIOS
Function
17

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