NEC VERSA LX Service And Reference Manual page 124

Memory Map
The system supports system and video shadowing, both controlled through
complementary metal oxide semiconductor (CMOS). The system supports BIOS
as a cacheable area with write protection. The following table shows the
system's memory map.
Memory
Space Size
000000- 768
0002FFh bytes
000300- 256
0003FFh bytes
000400- 256
0004FFh bytes
000500- 639 KB
09FFFFh
0A0000- 64 KB
0AFFFFh
0B0000- 32 KB
0B7FFFh
0B8000- 32 KB
0BFFFFh
0C0000- 64 KB
0CBFFFh
0D0000- 64 KB
0DFFFFh
0E0000- 64 KB
0EFFFFh
0F0000h- 64 KB
0FFFFFh
100000h- 32 MB
1FFFFFF (non- (non-
AGP) AGP)
100000h- 64 MB
3FFFFFF (AGP)
(AGP)
2000000- up to
5FFFFFF (non- 256 MB
AGP) (both)
4000000-
FFFFFFF
(AGP)
System Memory Map
Function
BIOS Interrupt Vector Table
BIOS Stack Area
BIOS Data Area
Applications Memory (used by the O/S, device drivers, TSRs, and all
DOS applications
Video Buffer (EGA and VGA)
Video Buffer (monochrome, CGA color, VGA monochrome)
Video Buffer (CGA, EGA color, and VGA color)
Video ROM (EGA and VGA)
Used by Adapter ROMs (i.e., network controllers, hard disk controllers,
SCSI host adapters)
Used by System ROM adapters (i.e., network controllers with boot
capability)
System AMIBIOS (includes Setup and hard disk drive utilities)
Built-In Extended Memory
Extended Memory
Specifications 9-13