1St Mb Memory Map; Dma Channel Assignments; Table D-2: 1St Mb Memory Map; Table D-3: Dma Channel Assignments - Advantech PCM-9550F User Manual

D.2 1st MB memory map

Table D-2: 1st MB memory map

Addr. range (Hex) Device
F000h - FFFFFh
**DC000h - EFFFFh Unused
*CC000h - DBFFFh Ethernet ROM
C0000h - CBFFFh
B8000h - BFFFFh
B0000h - B7FFFh
A0000h - AFFFFh
00000h - 9FFFFh
* If Ethernet boot ROM is enabled
** E0000 - EFFFF is reserved for Pentium
D.3 DMA channel assignments

Table D-3: DMA channel assignments

Channel
0
1
2
3
4
5
6
7
* Audio DMA select 1, 3, or 5
** Parallel port DMA select 1 (LPT2) or 3 (LPT1)
System ROM
Expansion ROM (for VGA BIOS)
CGA/EGA/VGA text
Unused
EGA/VGA graphics
Base memory
Function
Available
Available (audio)
Floppy disk (8-bit transfer)
Available (parallel port)
Cascade for DMA controller 1
Available
Available
Available
®
POST
Appendix D System Assignments 133