Hardware Configuration And Specifications - Acer 721TX - TravelMate - PII 333 MHz Service Manual

Hardware Configuration and Specifications

Memory Address Map
Address Range
000000-09FFFF
0A0000-0BFFFF
0C0000-0CBFFF
0F0000-0FFFFF
100000-top limited
FE0000-FFFFFF
Interrupt channel default assignment
Channel
NMI
IRQ0
IRQ1
IRQ2
IRQ3
IRQ4
IRQ5
IRQ6
IRQ7
IRQ8
IRQ9
IRQ10
IRQ11
IRQ12
IRQ13
IRQ14
14
Definition
640 KB memory
128 KB video RAM
Video BIOS
64 KB system BIOS
Extended memory
256 KB system ROM
Default setting
System errors
System timer
Keyboard
(cascade)
Modem/COM1
(can be disable)
Infrared
SoundBlaster
Audio (PCI
device)
Floppy
Printer
Real time clock
(SCI for ACPI
OS) PCI device
Modem
PCI device
Pointing device
Math
coprocessor
Hard disk driver
Base memory
Reserved
Video BIOS
System BIOS
SIMM memory
Duplicate of code
assignment at 0E0000-
0FFFFF
mode
Edge trigger
Edge trigger
Edge trigger
Edge trigger
Edge trigger
Level trigger
Edge trigger
Edge trigger
Edge trigger
Level trigger
Edge trigger
Level trigger
Edge trigger
Edge trigger
System Specifications
Function
Remarks
Dynamically
programmable
Dynamically
programmable
PCI interrupt
sharing
Dynamically
programmable
PCI interrupt
sharing
Dynamically
programmable
PCI interrupt
sharing