Advantech 2006957006 5th Edition Manual Do Utilizador
Appendix D System Assignments
107
D.2 1st MB memory map
Table D-2: 1st MB memory map
Addr. range (Hex)
Device
F000h - FFFFh
System ROM
E000h - EFFFh
Unused
D000h - DFFFh
SCSI ROM
*CC00h - CFFFh
Ethernet ROM
C000h - CBFFh
Expansion ROM
B800h - BFFFh
CGA/EGA/VGA text
B000h - B7FFh
Unused
A000h - AFFFh
EGA/VGA graphics
0000h - 9FFFh
Base memory
* If Ethernet boot ROM is enabled
D.3 DMA channel assignments
Table D-3: DMA channel assignments
Channel
Function
0
Available
1
Available
2
Floppy disk (8-bit transfer)
3
Available (Parallel Port)
4
Cascade for DMA controller 1
5
Available
6
Available
7
Available
** Parallel port DMA select 1 or 3