Memory Map - NEC VERSA FX Manual

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
0000 0000h-0009 FFFFh
000A 0000h-000B FFFFh
000C 000h-000D FFFFh
000E 0000h-000F FFFFh
0010 0000h-09FF FFFFh
000A 0000h-FFEF FFFFh
FFF0 0000h-FFF7 FFFFh
FFF8 0000h-FFF9 FFFFh
FFFA 0000h-FFFBFFFFh
FFFE 0000h-FFFF FFFFh
System Memory Map
Size Function
640K System/Application Memory
128K Video Buffer RAM
128K Available for applications
128K Upper ROM, System and Video
BIOS
up to 160MB Extended Memory
128K Video RAM Frame Buffer
512K 1MB Extended BIOS
256K New Extended BIOS
128K Lower ROM, Power Management
BIOS
128K System BIOS (alias)
Specifications B-7