Advantech SOM-4450 CPU System On Module SOM-4450 ETX - Manual (Page 33)

Appendix B System Assignments 2 7
B.4 1st MB memory map
Table B-4: 1st MB memory map
Addr. range (Hex) Device
F000h - FFFFh
System ROM
E000h - EFFFh Unused
CC00h - DFFFh available
C800h - CBFFh Ethernet ROM*
C000h - C7FFh VGA BIOS
B800h - BFFFh CGA/EGA/VGA text
B000h - B7FFh Reserved for graphic mode usage
A000h - AFFFh EGA/VGA graphics
0000h - 9FFFh Base memory
* default setting