Specifications

Chapter 3 Hardware
CoreModule 420 Reference Manual 19
Table 3-1. Memory Map (continued)
Address Size Use
0400 0000 1 MB RAM or Unused if Framebuffer is set to 1 MB or more
03F0 0000 1 MB RAM or Unused if Framebuffer is set to 2 MB or more
03E0 0000 1 MB RAM or Unused if Framebuffer is set to 3 MB or more
03D0 0000 1 MB RAM or Unused if Framebuffer is set to 4 MB
03C0 0000 44 MB RAM
Use
Memory hole size selected
Address Size
8 MB 4 MB 2 MB 1 MB 0 MB
0100 0000 1 MB H H H H R
00F0 0000 1 MB H H H R R
00E0 0000 1 MB H H R R R
00D0 0000 1 MB H H R R R
00C0 0000 1 MB H R R R R
00B0 0000 1 MB H R R R R
00A0 0000 1 MB H R R R R
0090 0000 1 MB H R R R R
R = RAM
H = Memory Hole, forwarded to ISA
The board can be configured to have access to the 1 MB
Flash anywhere in the memory hole, on 1 MB alignment.
Address Size Use
0080 0000 7 MB RAM
0010 0000 128 kB Shadowed BIOS
000E 0000 8 kB Unused
000D E000 8 kB DiskOnChip, if DC000-DDFFF window selected.
Unused if no DOC present.
000D C000 56 kB Unused
000C E000 8 kB DiskOnChip, if CC000-CDFFF window selected.
Unused if no DOC present.
000C C000 48 kB Unused
000C 0000 128 kB Unused, reserved for Video RAM, or
in SMI mode, mapped to RAM
000A 0000 -
0000 0000
640 kB Base memory