HP Vectra XW Optimization Manual page 68

2 Technical Reference
Technical Characteristics
Address
0 - 3FFh
(0 to 1KB)
400h - 4FFh
(1 KB to 1 KB + 256 bytes)
500h - 9FFFFh
(1 KB + 256 bytes to 640 KB)
A0000h - BFFFFh
(640 KB to 768 KB)
C0000h - C7FFFh
(768 KB to 800 KB)
C8000h - DFFFFh
(800 KB to 896 KB)
E0000h - EFFFFh
(896 KB to 960 KB)
F0000h - FFFFFh
(960 KB to 1024 KB)
100000h - F00000h
(1024 KB to top of memory)
DMA 0
DMA 1
DMA 2
DMA 3
DMA 4
DMA 5
DMA 6
DMA 7
62 English
Memory Address Map
Description
Interrupt Vector Table
BIOS Data Area
Base Memory
Used by operating systems and software applications
Video Memory
Video BIOS Data Area
Available for accessory board BIOS
Available
Used by operating systems for device drivers
BIOS Area
Extended Memory
Used by software applications
DMA Channels
Available
Available if not used by parallel port or audio subsystem
Flexible disk drive controller
Available if not used by audio subsystem
Used to cascade DMA channels 0-3
Available if not used by audio subsystem
Available
Available if not used by audio subsystem